US Plant Patent PP23410
Summer Green
Heliopsis plant named ‘Summer Green’
UNDER PATENT
Still under patent. Protection ends June 24, 2031.
Twenty years from the filing date would end on March 15, 2031. This patent earned 101 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP23410
- Filed
- March 15, 2011
- Granted
- February 19, 2013
- Expires
- June 24, 2031
- Inventor
- UEBELHART GEORG G
Abstract
A new cultivar of Heliopsis , ‘Summer Green’, characterized by its inflorescences with yellow ray florets and red cones, its slightly curled foliage that is variegated with blades that are light green to creamy white in color with dark green veins, its stems that are dark reddish in color, and its ability to bloom predictably as a one-year-old plant.
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 Heliopsis plant named ‘Summer Green’ as herein illustrated and described.
Read the full patent: US Plant Patent PP23410 in full — the complete specification, every figure, and the file history.