US Plant Patent PP15979
Limerock Passion
Coreopsis plant named ‘Limerock Passion’
PUBLIC DOMAIN
Patent expired September 1, 2024. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on August 12, 2024. This patent earned 20 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP15979
- Filed
- August 12, 2004
- Granted
- September 20, 2005
- Expires
- September 1, 2024
- Assignee
- LIMEROCK PLANT FARM INC
- Inventor
- BELL JOHN
Abstract
A new and distinct cultivar of Coreopsis plant named ‘Limerock Passion’, characterized by its daisy-type inflorescences; unique light red purple-colored ray florets and dark purple-colored disc florets; very freely flowering habit with numerous inflorescences per plant; and upright and outwardly spreading growth habit.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct cultivar of Coreopsis plant named ‘Limerock Passion’, as illustrated and described.
Read the full patent: US Plant Patent PP15979 in full — the complete specification, every figure, and the file history.