US Plant Patent PP21274
Horstol
Variety of hydrangea plant named ‘Horstol’
UNDER PATENT
Still under patent. Protection ends November 25, 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
- PP21274
- Filed
- November 25, 2008
- Granted
- September 7, 2010
- Expires
- November 25, 2028
- Assignee
- CLAUS & TORSTEN KUEHNE GBR
- Inventor
- MEINL KATRIN
Abstract
A new and distinct Hydrangea plant having a strong root system, good stem quality and deep pink colored inflorescences.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct variety of Hydrangea plant substantially as shown and described herein.
Read the full patent: US Plant Patent PP21274 in full — the complete specification, every figure, and the file history.