US Plant Patent PP25736
Red Satin
Coreopsis plant named ‘Red Satin’
UNDER PATENT
Still under patent. Protection ends February 27, 2034.
Twenty years from the filing date would end on November 19, 2033. This patent earned 100 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP25736
- Filed
- November 19, 2013
- Granted
- July 21, 2015
- Expires
- February 27, 2034
- Assignee
- PROBST DARRELL R
- Inventor
- PROBST DARRELL R
Abstract
A new cultivar of hybrid Coreopsis named ‘Red Satin’ characterized by its sturdy and upright plant habit, its inflorescences with ray florets that are dark red in color, its thread-like foliage, its production of underground rhizomes that survive conditions of typical U.S.D.A. Zone 5 winters when planted in the landscape, and its sterile inflorescences and due to the lack of seed production; the plants remain relatively resistant to powdery mildew longer into the season than is typical for cultivars of thread-leaf type Coreopsis.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
It is claimed: 1. A new and distinct cultivar of Coreopsis plant named ‘Red Satin’ as herein illustrated and described.
Read the full patent: US Plant Patent PP25736 in full — the complete specification, every figure, and the file history.