US Plant Patent PP26928
Kolmavesu
Hydrangea plant named ‘Kolmavesu’
UNDER PATENT
Still under patent. Protection ends July 27, 2034.
Twenty years from the filing date would end on January 31, 2034. This patent earned 177 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP26928
- Filed
- January 31, 2014
- Granted
- July 12, 2016
- Expires
- July 27, 2034
- Assignee
- KOLSTER HOLDING B V, KOLSTER PETER R
- Inventor
- KOLSTER PETER R
Abstract
A new and distinct cultivar of Hydrangea plant named ‘Kolmavesu’, characterized by its upright and relatively compact plant habit; strong stems; freely flowering habit; and large upright conical inflorescences with white-colored sterile flowers that become red purple in color in mid-August in The Netherlands.
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 Hydrangea plant named ‘Kolmavesu’ as illustrated and described.
Read the full patent: US Plant Patent PP26928 in full — the complete specification, every figure, and the file history.