Takisia,
It appears that Mary Ann Sheehan assigned the patents to Sheehan Genetics as an executor of Timothy's will in December 2010 (and a couple more after this date). I would assume Sheehan Genetics is either the company selling the grapes, in which case they do not owe anyone royalties because they own the patents, or someone else is selling the grapes and paying royalties to Sheehan Genetics. Here is information on that assignment: http://assignments.uspto.gov/assignments/q?db=pat&asned=SHEEHAN%20GENETICS,%20LLC
To have a right to this revenue, you either need to show: 1) that Mary Ann improperly assigned the patents to Sheehan Genetics and they should have been assigned to you; or 2) you have an ownership interest in Sheehan Genetics through which you should be receiving revenue.
I would be happy to assist you if this were a patent matter. However, it appears this matter is one for an estate attorney in California. Here is a suggestion: http://www.kirstenesq.com/#!
Good luck
Answered on Sep 20th, 2013 at 8:25 AM