US Plant Patent PP21875
Oak Red
Hibiscus plant named ‘Oak Red’
UNDER PATENT
Still under patent. Protection ends October 30, 2029.
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
- PP21875
- Filed
- October 30, 2009
- Granted
- April 19, 2011
- Expires
- October 30, 2029
- Assignee
- ZONNEBLOEM BREEDING B V DE
- Inventor
- VAN HERCK GUIDO
Abstract
A new and distinct cultivar of Hibiscus plant named ‘Oak Red’, characterized by its upright, somewhat, outwardly spreading and dense and bushy plant habit; dark green-colored oakleaf-shaped leaves; freely flowering habit; large red-colored flowers; and good flower longevity.
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 ‘Oak Red’ as illustrated and described.
Read the full patent: US Plant Patent PP21875 in full — the complete specification, every figure, and the file history.