US Plant Patent PP22388
Piroska
Gerbera plant named ‘Piroska’
UNDER PATENT
Still under patent. Protection ends July 2, 2030.
Twenty years from the filing date would end on June 9, 2030. This patent earned 23 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP22388
- Filed
- June 9, 2010
- Granted
- December 20, 2011
- Expires
- July 2, 2030
- Inventor
- EVELEENS JAN LEENDERT
Abstract
A new and distinct cultivar of Gerbera plant named ‘Piroska’, characterized by its compact, upright and uniformly mounding plant habit; freely flowering habit; red purple and white bi-colored ray florets; upright and moderately strong scapes; and good garden performance.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct Gerbera plant named ‘Piroska’ as illustrated and described.
Read the full patent: US Plant Patent PP22388 in full — the complete specification, every figure, and the file history.