US Plant Patent PP26446
COSEH 1090
Helleborus plant named ‘COSEH 1090’
UNDER PATENT
Still under patent. Protection ends July 13, 2034.
Twenty years from the filing date would end on January 10, 2034. This patent earned 184 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP26446
- Filed
- January 10, 2014
- Granted
- March 1, 2016
- Expires
- July 13, 2034
- Assignee
- HEUGER JOSEF
- Inventor
- HEUGER JOSEF
Abstract
A new and distinct cultivar of Helleborus plant named ‘COSEH 1090’, characterized by its upright and mounding plant habit; uniform and freely flowering habit; dark green-colored leaves; freely flowering habit; single red purple to greyed purple-colored flowers; and good garden performance.
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 Helleborus plant named ‘COSEH 1090’ as illustrated and described.
Read the full patent: US Plant Patent PP26446 in full — the complete specification, every figure, and the file history.