It seems the patent has four inventors, but tinasu isn't one of them. Where did you get the name from?
http://www.linkedin.com/pub/jeremy-sawatzky/6/8a/461 is almost certinly one of those who "invited" the parent, if you look at the side on linkedin, Tina is the CEO he works with, also works at amazon, and Christina = Tina, so it's not like it's a wildly unthought out comment, I did put some logic behind the claim.
But yes, I do agree it's bad practice.
If you are wrong, any number of apologies would not cover you for this: you are making a direct public attack on someone who might well be an innocent party.
The way you have written it is potentially libellous - libel is illegal (perhaps even in the USA) for a reason.