US Plant Patent PP25403
Allgentitwist
Campanula plant named ‘Allgentitwist’
UNDER PATENT
Still under patent. Protection ends July 30, 2033.
Twenty years from the filing date would end on March 5, 2033. This patent earned 147 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP25403
- Filed
- March 5, 2013
- Granted
- March 31, 2015
- Expires
- July 30, 2033
- Inventor
- VAN DEN HOOGEN WILHELMUS T J
Abstract
A new and distinct cultivar of Campanula plant named ‘Allgentitwist’ characterized by its broadly upright plant habit; freely basal branching habit; freely and uniformly flowering habit; campanulate-shaped flowers with violet-colored petals and white-colored sepals giving a bi-colored appearance; and good garden performance.
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 Campanula plant named ‘Allgentitwist’ as illustrated and described.
Read the full patent: US Plant Patent PP25403 in full — the complete specification, every figure, and the file history.