US Plant Patent PP29123
UCB1-D90
Pistachio rootstock named ‘UCB1-D90’
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
- PP29123
- Filed
- September 29, 2015
- Granted
- March 20, 2018
- Expires
- January 21, 2036
- Assignee
- DUARTE JEFFREY THOMAS, DUARTE JOHN SCOTT
- Inventor
- CASTILLON JAVIER; Ash Kendall; Sharma Dharam
Abstract
Disclosed is a new and distinct variety of pistachio rootstock called ‘UCB1-D90’ characterized in that, when compared to the industry standard ‘UCB1-Dl’ 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; earlier vegetative bud break; and greater graft compatibility with commercial pistachio clones.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
Having thus described and illustrated the new variety of rootstock, what is claimed as new and desired to be secured by plant Letters Patent is: 1. A new and distinct variety of pistachio rootstock plant substantially as herein described and illustrated.
Read the full patent: US Plant Patent PP29123 in full — the complete specification, every figure, and the file history.