US Plant Patent PP20434
Pinot Noir
Heuchera plant named ‘Pinot Noir’
UNDER PATENT
Still under patent. Protection ends February 2, 2028.
Twenty years from the filing date would end on December 19, 2027. This patent earned 45 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP20434
- Filed
- December 19, 2007
- Granted
- October 20, 2009
- Expires
- February 2, 2028
- Assignee
- DELABROYE SANDRINE
- Inventor
- DELABROYE SANDRINE
Abstract
A new cultivar of Heuchera of hybrid origin, ‘Pinot Noir’, characterized by its relatively small, broadly ovate shaped leaves held on purple petioles that are dark purple-grey in color when they emerge and developing a silver overlay with dark purple veins as they mature. ‘Pinot Noir’ is further characterized by its mounded and compact plant habit, its tolerance to high heat and humidity, its vigorous growth habit, its early blooming habit with abundant, creamy white flowers and its hardiness in U.S.D.A. Zones 4 to 9.
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 Heuchera plant named ‘Pinot Noir’ as herein illustrated and described.
Read the full patent: US Plant Patent PP20434 in full — the complete specification, every figure, and the file history.