US Plant Patent PP36108
HLR 320
Helleborus plant named ‘HLR 320’
UNDER PATENT
Still under patent. Protection ends November 14, 2043.
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
- PP36108
- Filed
- November 14, 2023
- Granted
- September 10, 2024
- Expires
- November 14, 2043
- Assignee
- HEUGER JOSEF
- Inventor
- HEUGER JOSEF
Abstract
A new and distinct cultivar of Helleborus plant named ‘HLR 320’, characterized by its upright to outwardly spreading and mounded plant habit; moderately vigorous to vigorous growth habit; dark green-colored leaflets with lighter green-colored venation; freely flowering habit; dark greyish 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 ‘HLR 320’ as illustrated and described.
Read the full patent: US Plant Patent PP36108 in full — the complete specification, every figure, and the file history.