US Plant Patent PP19546
Silsun
Chrysocephalum plant named ‘Silsun’
UNDER PATENT
Still under patent. Protection ends December 4, 2027.
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
- PP19546
- Filed
- December 4, 2007
- Granted
- December 2, 2008
- Expires
- December 4, 2027
- Assignee
- SMITH KIM
- Inventor
- SMITH KIM
Abstract
A new and distinct cultivar of Chrysocephalum plant named ‘Silsun’, characterized by its compact, low spreading and mounding plant habit; silvery pubescent leaves and stems; freely flowering habit; large inflorescences positioned above the foliage; bright yellow-colored inflorescences; 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 Chrysocephalum plant named ‘Silsun’ as illustrated and described.
Read the full patent: US Plant Patent PP19546 in full — the complete specification, every figure, and the file history.