US Plant Patent PP19899
Robleo
Azalea plant named ‘Robleo’
UNDER PATENT
Still under patent. Protection ends May 17, 2027.
Twenty years from the filing date would end on August 8, 2026. This patent earned 282 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP19899
- Filed
- August 8, 2006
- Granted
- April 14, 2009
- Expires
- May 17, 2027
- Assignee
- PLANT DEV SERVICES INC
- Inventor
- THOMAS AMY DUCK
Abstract
A new and distinct variety of Azalea plant named ‘Robleo’, characterized by its unique blooming time, upright dense and globose growth habit, and attractive large semi-double multi-colored flowers.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct variety of Azalea plant named ‘Robleo’ as illustrated and described.
Read the full patent: US Plant Patent PP19899 in full — the complete specification, every figure, and the file history.