US Plant Patent PP25346
COSEH 990
Helleborus plant named ‘COSEH 990’
UNDER PATENT
Still under patent. Protection ends July 23, 2033.
Twenty years from the filing date would end on March 8, 2033. This patent earned 137 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP25346
- Filed
- March 8, 2013
- Granted
- March 10, 2015
- Expires
- July 23, 2033
- Assignee
- HEUGER JOSEF
- Inventor
- HEUGER JOSEF
Abstract
A new and distinct cultivar of Helleborus plant named ‘COSEH 990’, characterized by its upright and mounding plant habit; uniform and freely flowering habit; dark green-colored leaves; freely flowering habit; single white-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 990’ as illustrated and described.
Read the full patent: US Plant Patent PP25346 in full — the complete specification, every figure, and the file history.