US Plant Patent PP29233
Promon
Coreopsis plant named ‘Promon’
UNDER PATENT
Still under patent. Protection ends May 12, 2036.
Twenty years from the filing date would end on December 23, 2035. This patent earned 141 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP29233
- Filed
- December 23, 2015
- Granted
- April 10, 2018
- Expires
- May 12, 2036
- Assignee
- PROBST DARRELL R
- Inventor
- PROBST DARRELL R
Abstract
The present Coreopsis variety was created during a controlled plant breeding program. A compact and bushy growth habit is displayed. Attractive, yellow daisy-type inflorescences with a burgundy eye zone particularly during cooler growing conditions are formed. The dark green foliage coloration contrasts nicely with the blossom coloration. Excellent resistance to powdery mildew has been displayed during observations to date. The plant is a perennial and has been observed to be hardy to at least U.S.D.A. Hardiness Zone No. 5. The plant can be grown to advantage as attractive ornamentation in parks, gardens, and residential settings.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
I claim: 1. A new and distinct Coreopsis plant having the following combination of characteristics: (a) displays a compact and bushy growth habit, (b) displays attractive bright yellow flowers with a burgundy eye zone particularly during cooler growing conditions, (c) exhibits excellent resistance to powdery mildew, and (d) is hardy to at least U.S.D.A. Hardiness Zone No. 5; substantially as illustrated and described.
Read the full patent: US Plant Patent PP29233 in full — the complete specification, every figure, and the file history.