US Plant Patent PP21932
Flame Thrower
Echinacea plant named ‘Flame Thrower’
UNDER PATENT
Still under patent. Protection ends January 4, 2030.
Twenty years from the filing date would end on December 14, 2029. This patent earned 21 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP21932
- Filed
- December 14, 2009
- Granted
- May 24, 2011
- Expires
- January 4, 2030
- Assignee
- TERRA NOVA NURSERIES INC
- Inventor
- KORLIPARA HARINI
Abstract
A new and distinct Echinacea plant named ‘Flame Thrower’ characterized by medium large bicolor orange and red ray florets, dark cones, free flowering, well-branched flower stalks, early bloom time, 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 PP21932 in full — the complete specification, every figure, and the file history.