US Plant Patent PP34794
Clarion
Grapevine plant named ‘Clarion’
UNDER PATENT
Still under patent. Protection ends February 2, 2042.
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
- PP34794
- Filed
- February 2, 2022
- Granted
- December 6, 2022
- Expires
- February 2, 2042
- Assignee
- UNIV MINNESOTA
- Inventor
- CLARK MATTHEW D; LUBY JAMES; HEMSTAD PETER
Abstract
The invention is a new and distinct variety of grapevine plant named ‘Clarion’ that is characterized by its grapes with a moderate juice total acidity (average of 7.73 g/L) making it suitable for wine production, its grapes that lack less desirable aromatic compounds that are typical of cold climate hybrid grapes, its grapes with floral notes including lilac and tropical fruit notes, its good growth habit without excessive vigor, and its grapes with a loose cluster architecture.
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 variety of grapevine plant named ‘Clarion’ as described and illustrated herein.
Read the full patent: US Plant Patent PP34794 in full — the complete specification, every figure, and the file history.