US Plant Patent PP21159
Gregem
Buxus plant named ‘Gregem’
UNDER PATENT
Still under patent. Protection ends April 17, 2029.
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
- PP21159
- Filed
- April 17, 2009
- Granted
- July 13, 2010
- Expires
- April 17, 2029
- Assignee
- GREENLEAF NURSERY COMPANY
- Inventor
- MORENO RODRIGO; MAXWELL SCOTT
Abstract
A new cultivar of Buxus microphylla ‘Gregem’, characterized by its small evergreen leaves, its dense compact growth habit, its vigorous growth rate, its hardiness to U.S.D.A Zone 5, and its ease of propagation by softwood cuttings.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct cultivar of Buxus plant named ‘Gregem’ as herein illustrated and described.
Read the full patent: US Plant Patent PP21159 in full — the complete specification, every figure, and the file history.