US Plant Patent PP16027
Purple Sensation
Campanula plant named ‘Purple Sensation’
PUBLIC DOMAIN
Patent expired February 5, 2025. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on September 7, 2024. This patent earned 151 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP16027
- Filed
- September 7, 2004
- Granted
- October 11, 2005
- Expires
- February 5, 2025
- Assignee
- VAN KESTEREN MARK
- Inventor
- VAN KESTEREN MARK
Abstract
A new cultivar of hybrid Campanula , ‘Purple Sensation’, characterized by deep purple colored flowers, dark green foliage and purple stems. ‘Purple Sensation’ is hardy to USDA Zone 3 and is shorter in height than is typical for this type of Campanula .
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 Campanula plant named ‘Purple Sensation’ as herein illustrated and described.
Read the full patent: US Plant Patent PP16027 in full — the complete specification, every figure, and the file history.