US Plant Patent PP25727
Vitiwester
Clematis plant named ‘Vitiwester’
UNDER PATENT
Still under patent. Protection ends November 30, 2033.
Twenty years from the filing date would end on June 17, 2033. This patent earned 166 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP25727
- Filed
- June 17, 2013
- Granted
- July 21, 2015
- Expires
- November 30, 2033
- Assignee
- HANNINK JOHANNES ANTONIUS JOZEF
- Inventor
- HANNINK JOHANNES ANTONIUS JOZEF
Abstract
A new cultivar of Clematis named ‘Vitiwester’, that is characterized by its deep red velvety flowers, its floriferous blooming habit, its typical Viticella Group type foliage, its height of 2 to 3 m, and its very good resistance to wilt.
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 cultivar of Clematis plant named ‘Vitiwester’ as herein illustrated and described.
Read the full patent: US Plant Patent PP25727 in full — the complete specification, every figure, and the file history.