US Plant Patent PP18929
Sly Yojenna
Chrysanthemum plant named ‘Sly Yojenna’
UNDER PATENT
Still under patent. Protection ends December 18, 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
- PP18929
- Filed
- December 18, 2006
- Granted
- June 10, 2008
- Expires
- December 18, 2026
- Assignee
- YODER BROTHERS INC
- Inventor
- SMITH MARK A
Abstract
A new and distinct cultivar of Chrysanthemum plant named ‘Sly Yojenna’, characterized by its compact, upright and outwardly spreading plant habit; freely branching habit; dense and full plant habit; uniform and freely flowering habit; decorative-type inflorescences with elongated oblong to ligulate-shaped ray florets, red purple-colored ray florets; and natural season flowering about September 26 th in the Northern Hemisphere.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct Chrysanthemum plant named ‘Sly Yojenna’ as illustrated and described.
Read the full patent: US Plant Patent PP18929 in full — the complete specification, every figure, and the file history.