US Plant Patent PP20804
Spartan
Interspecific Ilex hybrid plant designated ‘Spartan’
UNDER PATENT
Still under patent. Protection ends August 2, 2027.
Twenty years from the filing date would end on June 22, 2027. This patent earned 41 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP20804
- Filed
- June 22, 2007
- Granted
- March 2, 2010
- Expires
- August 2, 2027
- Assignee
- UNIV RUTGERS
- Inventor
- ORTON ELWIN R; GANT DAVID A
Abstract
A new and distinct variety of evergreen shrub holly distinguished in that it combines from three species ( Ilex rugosa, I. integra, and I. pernyi ), as well as exhibiting desirable landscape and production traits which distinguish it from other forms of Ilex. Plants of the new variety exhibit a moderately vigorous rate of growth, develop a dense, self-compacting, moderately broad conical form of moderate size, possess small, shiny, dark green leaves with a beautiful finely rugose surface and non-spiny margins (consumer friendly) with bright red fruit displayed on wood of the previous season's growth, and are outstanding for their high level of winter hardiness.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct interspecific hybrid shrub plant of Ilex, substantially as herein shown and described.
Read the full patent: US Plant Patent PP20804 in full — the complete specification, every figure, and the file history.