US Plant Patent PP29744
Ninja Stars
Epimedium plant named ‘Ninja Stars’
UNDER PATENT
Still under patent. Protection ends March 29, 2037.
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
- PP29744
- Filed
- March 29, 2017
- Granted
- October 9, 2018
- Expires
- March 29, 2037
- Assignee
- PROBST DARRELL R
- Inventor
- PROBST DARRELL R
Abstract
A new cultivar of Epimedium hybrid, ‘Ninja Stars’, characterized by its leaves that are long, narrow, and evergreen with very spiny leaf margins, its foliage that emerges bronze in color in spring and turns medium dark green and semi-glossy in appearance as the season progresses, its numerous erect flower stems held above the foliage that are large in size and yellow in color, semi-long rhizomes averaging 10 cm in length, and its cold hardiness to at least U.S.D.A. Zone 4.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
It is claimed: 1. A new and distinct cultivar of Epimedium plant named ‘Ninja Stars’ as herein illustrated and described.
Read the full patent: US Plant Patent PP29744 in full — the complete specification, every figure, and the file history.