US Plant Patent PP20312
Alva
Dianthus plant named ‘Alva’
UNDER PATENT
Still under patent. Protection ends July 24, 2028.
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
- PP20312
- Filed
- July 24, 2008
- Granted
- September 15, 2009
- Expires
- July 24, 2028
- Assignee
- WHETMAN JOHN
- Inventor
- WHETMAN JOHN
Abstract
A new cultivar of Dianthus plant named ‘ALVA’ that is characterized by pronounced compact habit, grey-green foliage, and flowers that are magenta with a pale edge and darker center. In combination these traits set ‘ALVA’ apart from all other existing varieties of Dianthus known to the inventor.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct cultivar of Dianthus plant named ‘ALVA’ as described and illustrated herein.
Read the full patent: US Plant Patent PP20312 in full — the complete specification, every figure, and the file history.