US Plant Patent PP21522
Ponto's Queen of the Nile
Agapanthus plant name ‘Ponto's Queen of the Nile’
UNDER PATENT
Still under patent. Protection ends December 9, 2028.
No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.

The record
- Patent number
- PP21522
- Filed
- December 9, 2008
- Granted
- November 23, 2010
- Expires
- December 9, 2028
- Assignee
- PONTO NURSERY INC
- Inventor
- PONTO WILLIAM H
Abstract
A new and distinct selection of Agapanthus africanus (commonly known as Lily of the Nile) which herein is referred to as Agapanthus africanus cv. ‘Ponto's Queen of the Nile.’ ‘Ponto's Queen of the Nile’ differs from its parent plant, Agapanthus africanus Queen Ann, by possessing a gold leaf with a dark green stripe in the middle rather than an all-green leaf. The flower stock is green with a gold stripe as well.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinctive Agapanthus africanus plant as herein described and illustrated, that is characterized by a yellow gold leaf with a green stripe through the middle, and a green peduncle with a yellow linear stripe.
Read the full patent: US Plant Patent PP21522 in full — the complete specification, every figure, and the file history.