US Plant Patent PP18966
Yohope
Chrysanthemum plant named ‘Yohope’
UNDER PATENT
Still under patent. Protection ends November 16, 2026.
Twenty years from the filing date would end on May 3, 2026. This patent earned 197 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP18966
- Filed
- May 3, 2006
- Granted
- June 24, 2008
- Expires
- November 16, 2026
- Assignee
- YODER BROTHERS INC
- Inventor
- VANDENBERG CORNELIS P
Abstract
A new and distinct cultivar of Chrysanthemum plant named ‘Yohope’, characterized by its upright plant habit; dark green-colored foliage; freely and uniformly flowering habit; decorative-type inflorescences that are about 7 cm in diameter; attractive light purple-colored ray florets; strong peduncles; and good postproduction longevity.
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 ‘Yohope’ as illustrated and described.
Read the full patent: US Plant Patent PP18966 in full — the complete specification, every figure, and the file history.