US Plant Patent PP14377
Devon Siskin
Dianthus plant named ‘Devon Siskin’
PUBLIC DOMAIN
Patent expired April 10, 2022. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on February 7, 2022. This patent earned 62 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP14377
- Filed
- February 7, 2002
- Granted
- December 16, 2003
- Expires
- April 10, 2022
- Inventor
- WHETMAN JOHN
Abstract
A new cultivar of Dianthus named ‘Devon Siskin’ that is characterized by fragrant red-purple flowers with a distinctive pattern, a compact mounding habit and a long flowering season. In combination the traits set ‘Devon Siskin’ 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.
I claim: 1. A new and distinct cultivar of Dianthus plant named ‘Devon Siskin’, as described and illustrated herein.
Read the full patent: US Plant Patent PP14377 in full — the complete specification, every figure, and the file history.