US Plant Patent PP31351
Horthat
Hydrangea plant named ‘Horthat’
UNDER PATENT
Still under patent. Protection ends August 30, 2038.
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
- PP31351
- Filed
- August 30, 2018
- Granted
- January 14, 2020
- Expires
- August 30, 2038
- Assignee
- KOLSTER HOLDING B V, Horteve Breeding BV
- Inventor
- EVELEENS CORNELIS PIETER
Abstract
A new cultivar of Hydrangea macrophylla plant named ‘Horthat’ that is characterized by its compact plant habit, its mophead inflorescences that are dark rose in color, its sturdy and thick textured flowers, its inflorescences that are relatively small in size and globular in shape, and its suitability as a potted plant.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
It is claimed: 1. A new and distinct cultivar of Hydrangea plant named ‘Horthat’ substantially as herein illustrated and described.
Read the full patent: US Plant Patent PP31351 in full — the complete specification, every figure, and the file history.