US Plant Patent PP23018
Secret Passion
Echinacea plant named ‘Secret Passion’
UNDER PATENT
Still under patent. Protection ends April 20, 2031.
Twenty years from the filing date would end on January 26, 2031. This patent earned 84 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP23018
- Filed
- January 26, 2011
- Granted
- September 4, 2012
- Expires
- April 20, 2031
- Assignee
- TERRA NOVA NURSERIES INC, KORLIPARA HARINI
- Inventor
- KORLIPARA HARINI
Abstract
A new and distinct Echinacea plant named ‘Secret Passion’ characterized by enlarged disc florets forming an anemone-type inflorescence, warm pink ray florets contrasting strongly with the deep flamingo pink disc florets, a low habit with good branching, and excellent vigor.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct Echinacea plant as herein illustrated and described.
Read the full patent: US Plant Patent PP23018 in full — the complete specification, every figure, and the file history.