US Plant Patent PP25508
Royal Purple
Baptisia plant named ‘Royal Purple’
UNDER PATENT
Still under patent. Protection ends December 12, 2033.
Twenty years from the filing date would end on June 28, 2033. This patent earned 167 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP25508
- Filed
- June 28, 2013
- Granted
- May 5, 2015
- Expires
- December 12, 2033
- Assignee
- AULT JAMES ROBERT, CHICAGO LAND GROWS INC
- Inventor
- AULT JAMES ROBERT
Abstract
A new cultivar of Baptisia , ‘Royal Purple’ that is characterized by its racemes of flowers that are deep violet-blue in color, its dense vase-shaped plant habit when young and a dense broadly rounded plant habit and slightly smaller in size when mature, stipules at the base of the peduncle that are small in size, its inflorescences in which about 75% arises above the foliage and its ability to be readily propagated using stem shoot tip cuttings.
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 cultivar of Baptisia plant named ‘Royal Purple’ as herein illustrated and described.
Read the full patent: US Plant Patent PP25508 in full — the complete specification, every figure, and the file history.