US Plant Patent PP21313
Kolmarest
Hypericum plant named ‘Kolmarest’
UNDER PATENT
Still under patent. Protection ends March 20, 2029.
Twenty years from the filing date would end on November 28, 2028. This patent earned 112 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP21313
- Filed
- November 28, 2008
- Granted
- September 21, 2010
- Expires
- March 20, 2029
- Assignee
- KOLSTER BEHEER B V
- Inventor
- DE JONG JAN
Abstract
A new and distinct cultivar of Hypericum plant named ‘Kolmarest’, characterized by its compact, upright and outwardly spreading plant habit; moderately vigorous growth habit; short internodes; small dark green-colored leaves; uniform and freely flowering habit; uniform and high density of fruits; red-colored fruits; and resistance to Puccinia rust.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct Hypericum plant named ‘Kolmarest’ as illustrated and described.
Read the full patent: US Plant Patent PP21313 in full — the complete specification, every figure, and the file history.