US Plant Patent PP31722
15516 GR
Hibiscus plant named ‘15516 GR’
UNDER PATENT
Still under patent. Protection ends May 22, 2039.
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
- PP31722
- Filed
- May 22, 2019
- Granted
- May 5, 2020
- Expires
- May 22, 2039
- Assignee
- TEXAS A & M UNIV SYS
- Inventor
- MALINOWSKI DARIUSZ P; PINCHAK WILLIAM E; BROWN R STEVE
Abstract
‘15516 GR’ is a new and distinct hardy herbaceous Hibiscus hybrid with novel characteristics that include upright branched stems, numerous, outward-facing, flowers that are between dark red and dark purplish red with a dark red center eye, a prolonged blooming season, and cordate leaves.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
What is claimed is: 1. A new and distinct Hibiscus hybrid (L.) plant named ‘15516 GR’ as shown and described herein.
Read the full patent: US Plant Patent PP31722 in full — the complete specification, every figure, and the file history.