Who is Mr. David? And why do you care why Mr. David did what he did? Who are you?
If Mr. David copied anything from Ms. Hettinger's expired patent, then things are working as they should. The whole point of a patent is that the inventor tells the world about the invention, in exchange for the right to keep others from copying the same invention for a limited time.
Plagiarism doesn't apply to patents, but you can infringe a patent. However, to infringe a patent, the patent must be valid and not expired. If Ms. Hettinger's patent expired, she has no right to the invention over Mr. David. As to why he did what he did, thats probably a better question for Mr. David.
unfair firing
I worked for a public agency for 14 years. I was terminated when a child died in our county. I believe that I was scapegoated. The county states I violated agency protocols and procedures, but are unable or unwilling to tell me what specifically. I am desperate. My name was released to the media and I was on TV and in every newspaper. I need help. I did call an employment attorney and he said it would cost $12,000 to see me through the appeal process. Where can I get help. My husband is employed so we are not eligible for any free services.