RAYMOND A. JACKSON, District Judge.
This matter stems from Plaintiff I/P Engine, Inc.'s ("I/P Engine") claims against Defendants AOL, Inc. ("AOL"), Google, Inc. ("Google"), IAC Search & Media, Inc. ("IAC"), Gannett Company, Inc. ("Gannett"), and Target Corporation ("Target"), (collectively, "Defendants") alleging that Defendants have infringed two patents, in violation of 35 U.S.C. § 271(a)-(c), by making, using, providing, offering to sell, and/or selling within the United States products, services, methods, and systems including, without limitation, their search advertising systems, that are covered by one or more claims of I/P Engine's patents, and Defendants' counterclaims against I/P Engine for declaratory judgment regarding non-infringement and invalidity on both patents at issue.
Presently before the Court is the claim construction of several terms found in U.S. Patent Nos. 6,314,420 ("the '420 patent") and 6,775,664 ("the '664 patent"), which I/P Engine holds. The Court conducted a hearing on June 4, 2012 to construe the following terms: (1) "collaborative feedback data"; (2) "[feedback system for] receiving information found to be relevant to the query by other users"; (3) "scanfning] a network"; (4) "a scanning system"; (5) "demand search"; and (6) "Order of Steps".
This case involves relevance filtering technology used in the search engine industry. In the mid-to-late 1990s, the amount of content (e.g., web pages) available on the Internet was relatively small compared to today. Users would frequently access Internet web pages by visiting portal sites, which presented content categorized directories through which the users could select links to available pages. The leading portal sites of the time (i.e., AOL, Lycos, etc.) used manually maintained content catalogs.
As the Internet grew, manual logs presented both accuracy problems, as well as difficulty in maintaining substantially larger amounts of information. After working together on several products, Messrs. Lang and Kosak,
On September 15, 2011, I/P Engine filed a Complaint in the United States District Court for the Eastern District of Virginia, alleging that the Defendants use I/P Engine's technology on various sites to provide advertising and search services. On December 5, 2011, Defendants filed their first Amended Answers, Defenses, and Counterclaims against I/P Engine, seeking declaratory judgments of non-infringement and invalidity of the '420 and '664 patents.
The '420 patent was issued to Lycos, Inc. on November 6, 2001. It is entitled "Collaborative/Adaptive Search Engine" and describes a search engine system that employs a collaborative/content-based filter to make continuing searches for information entities that match existing wire queries that are ranked and stored over time as well as "one-shot" or demand searches for information. The '420 patent includes thirty-six (36) claims, but I/P Engine only asserts infringement of Claims 10, 14, 15, 25, 27, and 28. The parties dispute terms in Claims 10 and 25. Both Claims 10 and 25 are independent claims. Claims 14 and 15 depend upon Claim 10. Claims 27 and 28 depend upon Claim 25. Claim 10 provides as follows:
A search engine system comprising:
Claim 25 provides as follows:
A method for operating a search engine system comprising:
The '664 patent was issued to Lycos, Inc. on August 10, 2004. The '664 patent is essentially a continuation of the '420 patent and is entitled "Information Filter System and Method for Integrated Content-Based and Collaborative/Adaptive Feedback Queries." The abstract for the '664 patent describes it in identical terms to the '420 patent. The '664 patent has thirty-eight (38) claims, but I/P Engine only asserts infringement of Claims 1, 5, 6, 21, 22, 26, 28, and 38. The disputed terms can be found in Claims 1 and 26. Claims 1 and 26, the only independent claims asserted, are representative.
Claim 1 provides as follows:
A search system comprising:
Claim 26 provides as follows:
A method for obtaining information relevant to a first user comprising:
Claim construction is "a question of law, to be determined by the court." Markman v. Westview Instruments, Inc., 517 U.S. 370, 384, 116 S.Ct. 1384, 134 L.Ed.2d 577 (1996). In construing claims, the Court must look first to the intrinsic evidence in the record (i.e., the claims, the specification, and the prosecution history). Markman v. Westview Instruments, Inc., 52 F.3d 967, 979 (Fed.Cir.1995), aff'd 517 U.S. 370, 116 S.Ct. 1384, 134 L.Ed.2d 577 (1996). Claim construction begins with determining how a person of ordinary skill in the art understands a claim term as of the filing date of the parent application. Phillips v. AWH Corp. et al., 415 F.3d 1303, 1313 (Fed.Cir.2005), cert denied, 546 U.S. 1170, 126 S.Ct. 1332, 164 L.Ed.2d 49 (2006). In the unlikely event that the intrinsic evidence is insufficient to determine the acquired meaning of the claim language, the court may rely on extrinsic evidence (i.e., dictionaries, treatises, publications, and expert testimony). See id.; Vitronics Corp. v. Conceptronic, Inc., 90 F.3d 1576, 1585 (Fed.Cir.1996).
A court's claim construction analysis must begin with the words of the claim. "[T]he words of a claim `are generally given their ordinary and customary meaning' ... the meaning that the term would have to a person of ordinary skill in the art in question at the time of the invention." Phillips, 415 F.3d at 1312-13 (quoting Vitronics, 90 F.3d at 1582). This ordinary meaning "may be readily apparent
If the meaning of a term is not immediately apparent, courts must look to the written description and prosecution history to provide guidance as to the meaning of the claim terms. Phillips, 415 F.3d at 1314. In analyzing the claim language, the Court must analyze the context in which the term appears and other claims of the patent to gain insight on the patentee's intention for claim definition. "Because claim terms are normally used consistently throughout the patent, the usage of a term in one claim can often illuminate the meaning of the same term in other claims." Id.
The specification contains a written description of the invention, and the manner and process of making and using it, and the best mode contemplated by the inventor of carrying it out. See 35 U.S.C. § 112. "It is always necessary to review the specification to determine whether the inventor has used any terms in a manner inconsistent with their ordinary meaning." Vitronics, 90 F.3d at 1582; see also Phillips, 415 F.3d at 1315. However, there is a distinction between using the specification to analyze the claim and incorporating limitations from the specification into the claim language. Phillips, 415 F.3d at 1323; see also Liebel-Flarsheim Co. v. Medrad, Inc., 358 F.3d 898, 904 (Fed.Cir. 2004).
The prosecution history contains the complete record of all proceedings before the Patent and Trademark Office ("PTO"), including any express representations made by the applicant regarding the scope of the claims. The prosecution history is useful in determining how the inventor understood the patent and invention, and may provide evidence that the inventor limited the invention during the course of prosecution, thus restricting the scope of the claim language. Phillips, 415 F.3d at 1317. However, the Court should not rely too heavily on the prosecution history because it "represents an ongoing negotiation between the PTO and the application, rather than the final product of that negotiation, [such that] it often lacks the clarity of the specification and thus is less useful for claim construction purposes." Id.
A court may also consider extrinsic evidence, "which consists of all evidence external to the patent and prosecution history, including expert and inventor testimony, dictionaries, and learned treatises." Phillips, 415 F.3d at 1317-19. However, extrinsic evidence should not be used "to contradict claim meaning that is unambiguous in the light of intrinsic evidence." Id. at 1324. Judges may consult search resources to better understand the underlying technology and to aid in construing claim terms, "so long as the dictionary definition does not contradict any definition found in or ascertained by a reading of the patent documents." Id. at 1322-23. Extrinsic evidence has been found to be generally less reliable than intrinsic evidence and accordingly should be considered in light of the intrinsic evidence. If analysis of the intrinsic evidence will resolve any ambiguity, it is improper to consider
Prior to the Markman hearing, the parties filed a Joint Claim Construction and Prehearing Statement indicating that they agreed to the definitions of four (4) claim terms. Accordingly, the Court adopts the following term definitions:
The term "
In construing this term, the Court first looks to the claim language. See Interactive Gift Express, Inc. v. Compuserve Inc., 256 F.3d 1323, 1331 (Fed.Cir.2001). ("All intrinsic evidence is not equal, however. First, we look to the claim language. Then we look to the rest of the intrinsic evidence, beginning with the specification and concluding with the prosecution history, if in evidence.") (internal citations omitted); Digital Biometrics, Inc. v. Identix, Inc., 149 F.3d 1335, 1344 (Fed.Cir.1998) ("Even within the intrinsic evidence, however, there is a hierarchy of analytical tools. The actual words of the claim are the controlling focus.").
Claims 10 and 25 both require "a feedback system for receiving
The question remains, however, whether those system users must have "similar interests or needs." In support of their argument that such a requirement exists, Defendants cite to the portion of the specification which explains that "[c]ollaborative filtering employs additional data from other users to improve search results for an individual user for whom a search is being conducted." '420 Patent, col. 24, 11. 37-41. Defendants believe it flows logically from the specification that if the data from these users improves search results of the individual user, then the other system users must have had similar interests or needs. I/P Engine contends that the specification's explanation of collaborative filtering as "the process of filtering informons, e.g., documents, by determining what informons other users with similar interests found to be relevant" suggests that the data does not originate from any particular source. Pl.'s Claim Constr. Br. at 22; '420 Patent, col. 4, ll. 26-29. In other words, I/P Engine submits that Defendants attempt to read an additional source limitation into this claim by adding the requirement that the data must come from "users with similar interests or needs" to the one limitation contained within the claim language that data must come from "system users." Pl.'s Claim Constr. Br. at 22-23.
The only requirement that the claim language lays out is that the data must come from system users. It does not explicitly state that these users must have "similar interests or needs." In fact, the claim language only makes reference to data the individuals found relevant to their respective needs. From this language, the Court will not create the additional limitation that those users must have similar interests or needs. The language in the specification to which the Defendants cite in support of their argument does not suggest that these users must have similar interests or needs but merely that data from those users is used to improve search results. While the definition of "collaborative filtering" refers to users with similar interests or needs, the Court does not believe it appropriate to import this portion of the specification to limit the plain claim language and the term "
Because intrinsic evidence establishes the meaning of this disputed term, extrinsic evidence is unnecessary. Therefore, based on the intrinsic evidence contained within the claim language and the specification, the Court construes "
The term "
Beginning with the patent claims, Claim 1 of the '664 patent provides: "A search engine comprising: ...
Again, Defendants claim that there is a dispute about whether the information must come from other users with similar interests or needs. However, "district courts are not (and should not be) required to construe every limitation present in a patent's asserted claims." O2 Micro Int'l, 521 F.3d at 1362. Instead, "[c]laim construction is a matter of resolution of disputed meanings and technical scope, to clarify and when necessary to explain what the patentee covered by the claims, for use in the determination of infringement." Id. (quoting U.S. Surgical Corp. v. Ethicon, Inc., 103 F.3d 1554, 1568 (Fed.Cir.1997)). A claim term "should be construed by the Court whenever there is an actual, legitimate dispute as to the proper scope of the claims." Sunbeam Prods., Inc. v. Hamilton Beach Barnds, Inc., No. 3:09cv791, 2010 WL 3291830, at *1 (E.D.Va. Aug. 19, 2010) (Markman Order).
Having reviewed the claims and the patent specification, the Court finds that the plain and ordinary meaning of the term "
The term "
Looking first at the claim language, Claim 10 calls for: "A search engine system comprising: a system for
In support of its argument that scanning means spidering, Defendants argue that every mention of "scanning" in the specification is tied to the operation of a spider. See, e.g., '420 patent, col. 25, ll. 39-40; col. 1, ll. 60-61 ("A spider system 46c scans a network 44c to find informons for a current demand search ..." and "[a] continuously operating spider scans the network to find informons which are received and process to determine...."). When a word is related or tied to a term throughout the specification (as Defendants maintain is the case with "scanning" and "spidering"), Defendants advocate construing that term by the word to which it is tied. See, e.g.,
I/P Engine argues that this disputed phrase is made up of readily understandable and familiar English words. "[I]t is always necessary to review the specification to determine whether the inventor has used any terms in a manner inconsistent with their ordinary meaning." Vitronics, 90 F.3d at 1582. I/P Engine contends that the specification uses the term "
In analyzing the specification's references to "a spider system" that "scans a network," the Court cannot conclude that the inventor intended to use the term "
While this fact is not dispositive of this question, it suggests to the Court that it should not limit this claim based on a preferred embodiment of the invention. See Inverness Med. Switzerland GmbH v. Warner Lambert Co., 309 F.3d 1373, 1379 (Fed.Cir.2002) ("It is improper to limit the claim based on a preferred embodiment of the invention."); see also TurboCare v. Gen. Elec. Co., 264 F.3d 1111, 1123 (Fed. Cir.2001) (internal citations omitted).
Regardless of the construction of this term they proposed, both parties cite to extrinsic evidence to elucidate their construction. Defendants argue that the "scanning" involved in the patent requires sequential, item-by-item searching. In support of that assertion, Defendants cite to a law review article which reads, in relevant part: "A spider (also known as a robot, crawler, or indexer) is a program that scans the Web, crawling from link to link." See id. at 6. Defs. Claim Constr. Br. at 6 (citing Ira S. Nathanson, Internet Infoglut and Invisible Ink, 12 HARV. J.L. & TECH. 43, 61 (1998)). I/P Engine, which argues for a broader construction of the term "scanning," cites to dictionary definitions that define scanning, inter alia, as "examining point-by-point," "to examine sequentially each item in a list," and "to glance from point to point often hastily." See Merriam-Webster's Collegiate Dictionary, 10th ed., 1998; see also Academic Press Dictionary of Science and Technology, 1992.
In cases where claim construction involves applying widely accepted meanings of common words, dictionaries may prove helpful. Phillips, 415 F.3d at 1314. Based on any purported definition of the term, the Court believes that extrinsic evidence in this instance is beneficial in determining how best to construe this term so that its meaning is accessible to the jury. The Court has alluded to its view that the term "
Consequently, having considered both the intrinsic and extrinsic evidence, the Court construes the term "
The term "
Claim 1 of the '664 patent provides: "A search system comprising:
I/P Engine maintains that the claim language itself is instructive and that the surrounding words provide sufficient context to establish that in Claim 1 of the '664 patent, "
The Court finds the claim itself solves the construction question regarding this term. "While certain terms may be at the center of the claim construction debate, the context of the surrounding words of the claim also must be considered in determining the ordinary and customary meaning of those terms." Brookhill-Wilk 1, LLC v. Intuitive Surgical, Inc., 334 F.3d 1294, 1299 (Fed.Cir.2003) (internal citations omitted). Regarding the term "
"The doctrine of claim differentiation `create[s] a presumption that each claim in a patent has a different scope.'" Free Motion Fitness, Inc. v. Cybex Intern., Inc., 423 F.3d 1343, 1351 (Fed.Cir. 2005) (quoting Comark Commc'ns, Inc. v. Harris Corp., 156 F.3d 1182, 1187 (Fed. Cir.1998)). Claim 24 of the '664 patent adds the following limitation to independent Claim 1: "The search system of claim 1 wherein the scanning system further comprises scanning a network upon a demand search." Claim 1 of the '664 patent is devoid of this language. Dependent Claim 24 adds the limitation that Defendants attempt to add to independent Claim 1. The Court will not read a further limitation into Claim 1 in light of Claim 24.
The intrinsic evidence of the claim language provides the Court with the requisite evidence on which to base its construction of this term. The Court also finds no evidence in the specification to deviate from its construction rooted in the claim language itself. Accordingly, the Court construes the term "
The term "demand search" appears in Claims 10 and 25 of the '420 patent. I/P Engine defines "
The Defendants argue that both patents make clear that unlike the wire searches which are not at issue in this case, a "demand search" is simply a regular search engine query. Defs.' Claim Constr. Br. at 19-20. Defendants further contend that I/P Engine's definition is cumbersome and would be confusing to the jury. Id. at 20-21.
The term "
Both parties agree that the disputed patents feature two types of searches: wire searches and demand searches. Wire searches are continuous searches based upon stored information and results over time. Defs.' Claim Constr. Br. at 19; Pl.'s Claim Constr. Br. at 21. Although wire searches are not part of this dispute, it is helpful to understand the distinction between the two types of searches in construing the term "
"On the other hand, a regular search engine is operated to make immediate or short-term `demand' searches for other user queries on the basis of content-based filtering." '420 patent, col. 23, ll. 48-51. This language from the specification makes clear that demand searches are the antithesis of the continuous wire searches. Moreover, the parties appear to agree that demand searches are singular and do not depend on continuous or stored data.
The Abstract language provides further support for the notion that demand searches are singular searches. See Tate Access Floors, Inc. v. Maxcess Techs., Inc., 222 F.3d 958, 965 n. 2 (Fed.Cir.2000) ("[I]n determining the scope of a claim, the abstract of a patent is a potentially useful source of intrinsic evidence as to the meaning of the disputed claim term."). The Abstract describes the demand searches as "one-shot." However, the Court finds that the use of the word "single" would most accurately capture the difference between the continuous wire searches and the immediate, "one-shot" demand searches. While the language of the specification makes clear that a demand search is immediate or short-term, Defendants' proposed definition of a "search engine query" and I/P Engine's proposed definition of a "one-time searched performed upon a user request" both have their shortcomings. Defendants' definition is vague and does not construe the term in a way that would be accessible to the jury while Plaintiffs construction may lead the jury to believe that a demand search can only be performed one time by a user.
Therefore, bearing in mind that the ultimate goal of claim construction is to clarify the legal meaning of claim language to make it clear to a jury, the Court believes an amalgamation of the parties' proposed definitions is appropriate. The specification instructs the Court as to the patentees' intent regarding this term — to distinguish the demand searches as isolated entities from the continuous wire searches. Accordingly, the Court construes the term "
The term "
"Unless the steps of a method actually recite an order, the steps are not ordinarily construed to require one. However, such a result can ensue when the method steps implicitly require that they be performed in the order written." Interactive Gift Express, 256 F.3d at 1342. Claim 25 of the '420 patent lays out the following:
A method for operating a search engine system comprising:
Claim 26 of the '664 provides:
A method for obtaining information relevant to a first user comprising:
In order to determine if the steps of a method claim require an order, courts perform a two-part test. "First, we look to the claim language to determine if, as a matter of logic or grammar, they must be formed in the order written.... If not, we next look to rest of the specification to determine whether it `directly or implicitly requires such a narrow construction.'" Altiris, Inc. v. Symantec Corp., 318 F.3d 1363, 1369-70 (Fed.Cir.2003) (internal citations omitted).
In both instances, it is clear to the Court that, based on logic or grammar, not every step in these claims need be performed in the order that it is written. At the hearing, counsel for I/P Engine argued that in Claim 25 of the '420 patent, Steps [b] and [c] do not have to be performed before Step [d]. Hearing Tr. 60:1-8. More specifically, I/P Engine asserted that there is "nothing in this claim that prevents you from doing the filtering as one step." Id. at 60:9-10.
While there is some logic to Defendants contentions regarding the "
Regarding Claim 26 of the '664 patent, Steps [cl] and [c2] specifically reference "combining" or "the combined" "searched information" from Step [a] with the "information found to be relevant by the query by other users" of Step [b]. Therefore, it logically follows that in order to combine the output of Steps [a] and [b], these steps must occur prior to Step [c]. Again, this logical inference does not appear to be the source of the dispute between the parties. I/P Engine argued that nothing from the claim language itself nor the specification mandates that Step [c1] must be performed before Step [c2]. Hearing Tr. 61:15-18 ("While they can be separate processes, there's nothing in the specifications that suggest that they can't be done simultaneously. You can combine and filter at the same time.").
As was its view with respect to the '420 patent, the Court will not infer that the steps must be performed as written in the absence of logic dictating such a requirement or language from the specification demonstrating that this Claim must be followed in the order in which it is written. "[S]uch a construction would not read on the preferred embodiment, and therefore would `rarely, if ever, [be] correct and would require highly persuasive evidentiary support.'" Interactive Gift Express, 256 F.3d at 1343.
Therefore, after analyzing the two-part test of Interactive Gift Express, the Court concludes that the term "
For the foregoing reasons, the Court
The Clerk is