US Plant Patent PP28687
Plum Power
Heuchera plant named ‘Plum Power’
UNDER PATENT
Still under patent. Protection ends January 31, 2036.
Twenty years from the filing date would end on December 9, 2035. This patent earned 53 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP28687
- Filed
- December 9, 2015
- Granted
- November 21, 2017
- Expires
- January 31, 2036
- Assignee
- KLINKHAMER LUCAS
- Inventor
- KLINKHAMER LUCAS
Abstract
A new cultivar of hybrid Heuchera named ‘Plum Power’, characterized by its unique foliage with leaves that are purple in color with a silver sheen, its large leaves, and its re-blooming habit; blooming from April to November in The Netherlands.
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 hybrid Heuchera plant named ‘Plum Power’ as herein illustrated and described.
Read the full patent: US Plant Patent PP28687 in full — the complete specification, every figure, and the file history.