US Plant Patent PP25820
Duemprialbu
Verbena plant named ‘Duemprialbu’
UNDER PATENT
Still under patent. Protection ends December 25, 2033.
Twenty years from the filing date would end on July 1, 2033. This patent earned 177 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP25820
- Filed
- July 1, 2013
- Granted
- August 18, 2015
- Expires
- December 25, 2033
- Assignee
- DUMMEN GROUP BV, DUMMEN TOBIAS
- Inventor
- DUMMEN TOBIAS
Abstract
A new and distinct cultivar of Verbena plant named ‘Duemprialbu’, characterized by its compact, semi-upright and mounding plant habit; vigorous growth habit; freely branching habit; freely flowering habit; and large deep purple-colored flowers.
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 Verbena plant named ‘Duemprialbu’ as illustrated and described.
Read the full patent: US Plant Patent PP25820 in full — the complete specification, every figure, and the file history.