US Plant Patent PP21923
White Royal
Campanula plant named ‘White Royal’
UNDER PATENT
Still under patent. Protection ends December 9, 2029.
No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.

The record
- Patent number
- PP21923
- Filed
- December 9, 2009
- Granted
- May 17, 2011
- Expires
- December 9, 2029
- Assignee
- GARTNERIET TVILLINGEGAARDEN AS
- Inventor
- HOLDE CHARLOTTE
Abstract
A new distinct cultivar of Campanula plant named ‘WHITE ROYAL’ characteristics by it's upright and compact plant habit with a dense and bushy plant form; vigorous growth rate and no need for chemical growth retardation; many uniform and white flowers and dark green leaves; and good flower longevity on plant.
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 ‘WHITE ROYAL’, as described and illustrated herein.
Read the full patent: US Plant Patent PP21923 in full — the complete specification, every figure, and the file history.