"A) He seriously lied about not knowing of the patent. B) He was just a meaningless co-inventor and your statement is wrong."
Choice A is correct. Read below. He has admitted and APOLOGIZED for both forgetting AND making an error in judgement all in the same mistake. How does one both FORGET and make an error in judgement? If you forgot then a judgement could not have ever been made, no?
"I actually care little either way on bio-pure, just curious if you can back your claim he has 50% ownership."
Then why ask? Have I now earned your respect by backing my claim for you? I certainly hope so.