US Plant Patent PP21065
White King
Hydrangea plant named ‘White King’
UNDER PATENT
Still under patent. Protection ends March 27, 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
- PP21065
- Filed
- March 27, 2009
- Granted
- June 15, 2010
- Expires
- March 27, 2029
- Assignee
- ICHIE TOYOKAZU
- Inventor
- ICHIE TOYOKAZU
Abstract
A new cultivar of Hydrangea macrophylla named ‘White King’ that is characterized by its very early blooming habit, its ability to re-bloom on new growth after deadheading, its consistently well-formed, large-sized inflorescences that are white in color and are resistant to sun scorching under high light intensity, its foliage that is resistant to powdery mildew, and its compact growth habit resulting in low maintenance.
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 Hydrangea plant named ‘White King’ substantially as herein illustrated and described.
Read the full patent: US Plant Patent PP21065 in full — the complete specification, every figure, and the file history.