US Plant Patent PP21092
COSEH 220
Helleborus plant named ‘COSEH 220’
UNDER PATENT
Still under patent. Protection ends January 7, 2029.
No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.

The record
- Patent number
- PP21092
- Filed
- January 7, 2009
- Granted
- June 22, 2010
- Expires
- January 7, 2029
- Assignee
- HEUGER JOSEF
- Inventor
- HEUGER JOSEF
Abstract
A new and distinct cultivar of Helleborus plant named ‘COSEH 220’, characterized by its upright and mounded plant habit; medium green-colored leaves; early and freely flowering habit; and large white-colored flowers.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct Helleborus plant named ‘COSEH 220’ as illustrated and described.
Read the full patent: US Plant Patent PP21092 in full — the complete specification, every figure, and the file history.