US Plant Patent PP25104
Kolmaru
Hydrangea plant named ‘Kolmaru’
UNDER PATENT
Still under patent. Protection ends April 5, 2033.
Twenty years from the filing date would end on October 20, 2032. This patent earned 167 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP25104
- Filed
- October 20, 2012
- Granted
- November 25, 2014
- Expires
- April 5, 2033
- Assignee
- KOLSTER HOLDING B V, KOLSTER PETER R
- Inventor
- KOLSTER PETER R
Abstract
A new and distinct cultivar of Hydrangea plant named ‘Kolmaru’, characterized by its upright and somewhat outwardly spreading plant habit; strong erect stems; glossy dark green-colored leaves; freely flowering habit; and large flattened globular mophead-type inflorescences with red purple-colored sterile flowers.
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 ‘Kolmaru’ as illustrated and described.
Read the full patent: US Plant Patent PP25104 in full — the complete specification, every figure, and the file history.