US Plant Patent PP23125
Sheegene-20
Grapevine ‘Sheegene-20’
UNDER PATENT
Still under patent. Protection ends July 1, 2031.
No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.

The record
- Patent number
- PP23125
- Filed
- July 1, 2011
- Granted
- October 23, 2012
- Expires
- July 1, 2031
- Assignee
- SHEEHAN TIMOTHY P, SHEEHAN GENETICS LLC
- Inventor
- SHEEHAN TIMOTHY P
Abstract
A new and distinct variety of grapevine characterized by the production of medium to large, red-colored seedless grapes that mature in late September, approximately nine weeks later than ‘Flame Seedless’ (unpatented) when grown in the San Joaquin Valley of Central California. The grapes of this new variety are produced on strong woody stems and branches and are well adapted to commercial handling.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new variety of grapevine to be known as ‘Sheegene-20’ and parts thereof, substantially as illustrated and described, characterized principally by its production of medium to large, red-colored seedless grapes that mature later in the season of ripening than does ‘Flame Seedless’ (unpatented) that it resembles.
Read the full patent: US Plant Patent PP23125 in full — the complete specification, every figure, and the file history.