US Plant Patent PP16291
RS-3
Grape plant named ‘RS-3’
PUBLIC DOMAIN
Patent expired March 20, 2024. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on September 4, 2023. This patent earned 198 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP16291
- Filed
- September 4, 2003
- Granted
- February 28, 2006
- Expires
- March 20, 2024
- Assignee
- UNIV CALIFORNIA
- Inventor
- MCKENRY MICHAEL
Abstract
A new and distinct grape plant ( Vitis vinifera L. species), ‘RS-3’, which is useful as a rootstock, is distinguished by providing broad resistance to nematodes.
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 grape plant having the characteristics described and illustrated herein.
Read the full patent: US Plant Patent PP16291 in full — the complete specification, every figure, and the file history.