When I was made redundant may years ago Human Remains came up with a document to sign regarding patents, IPR, etc. It was total nonsense as it would virtually mean I could not do a similar job for the rest of my life. I also said anything I had done was the product of my education, my experience and to a small degree to my work environment. I never signed but a number of people did. Subsequently the product,, and IPR, I had been working on was sold on. It still exists but obviously has been developed significantly. The company that axed me no longer exists!