US Plant Patent PP18740
WEKpurost
Climbing rose plant named ‘WEKpurost’
UNDER PATENT
Still under patent. Protection ends December 29, 2026.
Twenty years from the filing date would end on November 13, 2026. This patent earned 46 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP18740
- Filed
- November 13, 2006
- Granted
- April 22, 2008
- Expires
- December 29, 2026
- Assignee
- WEEKS WHOLESALE ROSE GROWER
- Inventor
- CARRUTH THOMAS F
Abstract
A new variety of Climbing rose suitable for garden decoration, having flowers of wine purple coloration.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct Climbing rose plant of the variety substantially as described and illustrated herein.
Read the full patent: US Plant Patent PP18740 in full — the complete specification, every figure, and the file history.