US Plant Patent PP29625
Keiko
Hydrangea plant named ‘Keiko’
UNDER PATENT
Still under patent. Protection ends April 18, 2037.
Twenty years from the filing date would end on March 7, 2037. This patent earned 42 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP29625
- Filed
- March 7, 2017
- Granted
- August 28, 2018
- Expires
- April 18, 2037
- Assignee
- PHIMMA TIAMCHAI
- Inventor
- SAKAMOTO SHOJI
Abstract
A new and distinct cultivar of Hydrangea plant named ‘Keiko’, characterized by its double-type, modified lacecap inflorescences, having light pink-colored sterile florets with a darker pink picotee color pattern, dark green-colored foliage, and moderately vigorous, compact-upright growth habit, is disclosed.
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 cultivar of Hydrangea plant named ‘Keiko’, substantially as herein illustrated and described.
Read the full patent: US Plant Patent PP29625 in full — the complete specification, every figure, and the file history.