US Plant Patent PP15551
Denver
Hibiscus plant named ‘Denver’
PUBLIC DOMAIN
Patent expired July 11, 2023. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on June 20, 2023. This patent earned 21 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP15551
- Filed
- June 20, 2003
- Granted
- February 8, 2005
- Expires
- July 11, 2023
- Assignee
- COOEPERATIEVE VERENIGING WERKG
- Inventor
- BEVELANDER MARINUS JACOBUS
Abstract
A new and distinct Hibiscus plant named ‘Denver’, characterized by its compact, upright and uniform plant habit that is appropriate for container production; freely branching habit; glossy medium green-colored leaves; freely and continuous flowering habit; orange and red bi-colored flowers; and good resistance to flower bud abscission.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct Hibiscus plant named ‘Denver’, as illustrated and described.
Read the full patent: US Plant Patent PP15551 in full — the complete specification, every figure, and the file history.