US Plant Patent PP23180
Purple Haze
Nepeta plant named ‘Purple Haze’
UNDER PATENT
Still under patent. Protection ends March 26, 2031.
Twenty years from the filing date would end on January 19, 2031. This patent earned 66 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP23180
- Filed
- January 19, 2011
- Granted
- November 13, 2012
- Expires
- March 26, 2031
- Assignee
- TERRA NOVA NURSERIES INC, KORLIPARA HARINI
- Inventor
- KORLIPARA HARINI
Abstract
A new and distinct form of Nepeta plant characterized by very long inflorescences with densely packed violet flowers, a decumbent, well branched habit, an extremely long bloom time, clean-looking, grey green, pubescent foliage, 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 form of Nepeta plant substantially as shown and described.
Read the full patent: US Plant Patent PP23180 in full — the complete specification, every figure, and the file history.