US Plant Patent PP23880
COSEH 900
Helleborus plant named ‘COSEH 900’
UNDER PATENT
Still under patent. Protection ends February 6, 2032.
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
- PP23880
- Filed
- February 6, 2012
- Granted
- September 3, 2013
- Expires
- February 6, 2032
- Assignee
- HEUGER JOSEF
- Inventor
- HEUGER JOSEF
Abstract
A new and distinct cultivar of Helleborus plant named ‘COSEH 900’, characterized by its upright and uniformly mounded plant habit; uniform and freely flowering habit; variegated leaves; long flowering period; single light yellow green-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 900’ as illustrated and described.
Read the full patent: US Plant Patent PP23880 in full — the complete specification, every figure, and the file history.