US Plant Patent PP33322
COSEH 6100
Helleborus plant named ‘COSEH 6100’
UNDER PATENT
Still under patent. Protection ends July 17, 2040.
Twenty years from the filing date would end on May 27, 2040. This patent earned 51 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP33322
- Filed
- May 27, 2020
- Granted
- August 3, 2021
- Expires
- July 17, 2040
- Assignee
- HEUGER JOSEF
- Inventor
- HEUGER JOSEF
Abstract
A new and distinct cultivar of Helleborus plant named ‘COSEH 6100’, characterized by its upright to outwardly spreading and mounded plant habit; moderately vigorous to vigorous growth habit; dark green-colored leaves; freely flowering habit; Purplish red to greyed reddish 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 6100’ as illustrated and described.
Read the full patent: US Plant Patent PP33322 in full — the complete specification, every figure, and the file history.