US Plant Patent PP22505
HBOK 10
Peach tree rootstock named ‘HBOK 10’
UNDER PATENT
Still under patent. Protection ends February 22, 2030.
Twenty years from the filing date would end on December 17, 2029. This patent earned 67 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP22505
- Filed
- December 17, 2009
- Granted
- February 21, 2012
- Expires
- February 22, 2030
- Assignee
- UNIV CALIFORNIA, US AGRICULTURE, LEDBETTER CRAIG A, BLISS FREDRICK A, DEJONG THEODORE M, ALMEHDI ALI A, GILLEN ANNE
- Inventor
- BLISS FREDRICK A; ALMEHDI ALI A; DEJONG THEODORE M; GILLEN ANNE; LEDBETTER CRAIG A
Abstract
The new ‘HBOK10’ rootstock, a hybrid between two peach parents, is useful as a commercial under-stock for peach and nectarine cultivars. The stock has been successfully propagated clonally by leafy cuttings and tissue culture. This rootstock imparts significant vigor control to the scion cultivar that is propagated on top of it. This rootstock produces very few root suckers, its anchorage is good and it is resistant to root-knot nematode. Utilization of adapted growth controlling rootstocks in commercial orchard situations reduces the height of the tree and the amount of wood pruned in the winter and summer, without compromising the quality of the fruit. This in turn increases the efficiency of various cultural operations such as pruning, thinning and harvesting by reducing the need for workers in the field to use tall ladders when carrying out these operations.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
What we claim is: 1. A new and distinct variety of peach tree rootstock designated ‘HBOK 10’ as shown and described herein.
Read the full patent: US Plant Patent PP22505 in full — the complete specification, every figure, and the file history.