US Plant Patent PP20497
Duempstraw
Verbena plant named ‘Duempstraw’
UNDER PATENT
Still under patent. Protection ends July 4, 2028.
Twenty years from the filing date would end on May 26, 2027. This patent earned 405 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP20497
- Filed
- May 26, 2007
- Granted
- November 17, 2009
- Expires
- July 4, 2028
- Assignee
- CAPITAL GREEN INVESTMENTS LTD
- Inventor
- DUEMMEN TOBIAS
Abstract
A new and distinct cultivar of Verbena plant named ‘Duempstraw’, characterized by its compact, mounding and cascading plant habit; freely branching habit; freely flowering habit; large red-colored flowers that are held above and beyond the foliage in mounded umbels; and resistance to Powdery Mildew.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct Verbena plant named ‘Duempstraw’ as illustrated and described.
Read the full patent: US Plant Patent PP20497 in full — the complete specification, every figure, and the file history.