US Plant Patent PP22251
DUP-CRW
Hibiscus plant named ‘DUP-CRW’
UNDER PATENT
Still under patent. Protection ends March 12, 2030.
No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.

The record
- Patent number
- PP22251
- Filed
- March 12, 2010
- Granted
- November 15, 2011
- Expires
- March 12, 2030
- Assignee
- DUPONT SR ROBERT J
- Inventor
- DUPONT SR ROBERT J
Abstract
A new and distinct cultivar of Hibiscus plant named ‘DUP-CRW’, characterized by glossy, dark green leaves, semi-upright habit appropriate for container production and culture, freely flowering habit, and very large flowers having an evenly distributed velvet red color of the upper surfaces of the petals.
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 ‘DUP-CRW’, either grafted or on its own roots, as illustrated and described.
Read the full patent: US Plant Patent PP22251 in full — the complete specification, every figure, and the file history.