US Plant Patent PP19818
Regal Supreme
Hosta plant named ‘Regal Supreme’
UNDER PATENT
Still under patent. Protection ends January 24, 2028.
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
- PP19818
- Filed
- January 24, 2008
- Granted
- March 10, 2009
- Expires
- January 24, 2028
- Assignee
- VAN DEN TOP HENDRIK JAN
- Inventor
- VAN DEN TOP HENDRIK JAN
Abstract
A new Hosta plant particularly distinguished by green, ovate leaves flushed with greyed-green and having a wide, yellow leaf margin, a broad inverted triangle plant shape, moderate to high vigor, and purple to violet flowers is disclosed.
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 Hosta plant as shown and described herein.
Read the full patent: US Plant Patent PP19818 in full — the complete specification, every figure, and the file history.