US Plant Patent PP27276
UFR-6
Citrus rootstock named ‘UFR-6’
UNDER PATENT
Still under patent. Protection ends January 22, 2035.
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
- PP27276
- Filed
- January 22, 2015
- Granted
- October 18, 2016
- Expires
- January 22, 2035
- Assignee
- FLORIDA FOUND SEED PRODUCERS INC
- Inventor
- GROSSER JUDE W
Abstract
‘UFR-6’ is a new and distinct allotetraploid citrus rootstock for tree size control and improved disease resistance. ‘UFR-6’ has shown a positive reaction to the Huanglongbing disease (HLB, or citrus greening disease) in multiple experimental field trials. Scion trees grafted on this rootstock show a reduced frequency of infection and reduced disease symptoms once infected as compared to commercial diploid rootstocks.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
What is claimed is: 1. A new and distinct citrus rootstock cultivar as illustrated and described herein.
Read the full patent: US Plant Patent PP27276 in full — the complete specification, every figure, and the file history.