US Plant Patent PP18809
Argyelsin
Argyranthemum frutescens plant named ‘Argyelsin’
UNDER PATENT
Still under patent. Protection ends December 22, 2026.
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
- PP18809
- Filed
- December 22, 2006
- Granted
- May 13, 2008
- Expires
- December 22, 2026
- Assignee
- SYNGENTA SEEDS BV
- Inventor
- HOUBRAKEN ANNA M W P
Abstract
A new and distinct cultivar of Argyranthemum frustescens plant named ‘Argyelsin’ characterized by its compact growth habit, yellow flower color, deep green foliage color, and short peduncles.
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 Argyranthemum frutescens plant, named ‘Argyelsin,’ substantially as herein illustrated and described.
Read the full patent: US Plant Patent PP18809 in full — the complete specification, every figure, and the file history.