US Plant Patent PP22660
Synwil Yel
Chrysanthemum plant named ‘Synwil Yel’
UNDER PATENT
Still under patent. Protection ends November 30, 2030.
Twenty years from the filing date would end on October 25, 2030. This patent earned 36 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP22660
- Filed
- October 25, 2010
- Granted
- April 17, 2012
- Expires
- November 30, 2030
- Assignee
- SYNGENTA CROP PROTECTION AG, SMITH MARK A
- Inventor
- SMITH MARK A
Abstract
A new Chrysanthemum plant named ‘Synwil Yel’ particularly distinguished by the medium to large inflorescences with yellow colored ray florets, dark yellow-green foliage, good compact mounded habit, and a natural flowering season in later September.
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 Chrysanthemum plant named ‘Synwil Yel’ substantially as illustrated and described herein.
Read the full patent: US Plant Patent PP22660 in full — the complete specification, every figure, and the file history.