US Plant Patent PP29121
UCB1-D71
Pistachio rootstock named ‘UCB1-D71’
UNDER PATENT
Still under patent. Protection ends January 21, 2036.
Twenty years from the filing date would end on September 29, 2035. This patent earned 114 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP29121
- Filed
- September 29, 2015
- Granted
- March 20, 2018
- Expires
- January 21, 2036
- Assignee
- DUARTE JEFFREY THOMAS, DUARTE JOHN SCOTT
- Inventor
- Ash Kendall; CASTILLON JAVIER; Sharma Dharam
Abstract
Disclosed is a new and distinct variety of pistachio rootstock called ‘UCB1-D71’ characterized in that, when compared to the industry standard ‘UCB1-D1’ rootstock, it has greater growth and tolerance to the soil salts of calcium chloride, sodium sulfate, sodium carbonate and sodium bicarbonate; greater growth and tolerance to high levels of dissolved salts in irrigation water; and earlier vegetative bud break.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
The invention claimed is: 1. A new and distinct variety of pistachio rootstock plant substantially as herein described and illustrated.
Read the full patent: US Plant Patent PP29121 in full — the complete specification, every figure, and the file history.