US Plant Patent PP20914
Cabernet Diane
Grapevine plant named ‘Cabernet Diane’
UNDER PATENT
Still under patent. Protection ends December 7, 2027.
Twenty years from the filing date would end on October 30, 2027. This patent earned 38 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP20914
- Filed
- October 30, 2007
- Granted
- April 6, 2010
- Expires
- December 7, 2027
- Assignee
- DRESSEL LUCIAN W
- Inventor
- DRESSEL LUCIAN W
Abstract
A new and distinct, self rooted, variety of grapevine plant, ‘Cabernet Diane’, from a cross of ‘Cabernet Sauvignon’ and ‘Norton’, which can be distinguished by its outstanding wine combined with high productivity, disease resistance, and cold hardiness superior to one of its acclaimed parents ‘Cabernet Sauvignon’.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct variety of Grapevine Plant as illustrated and described.
Read the full patent: US Plant Patent PP20914 in full — the complete specification, every figure, and the file history.