US Plant Patent PP27016
Blue Star
Gentiana plant named ‘Blue Star’
UNDER PATENT
Still under patent. Protection ends September 25, 2034.
Twenty years from the filing date would end on March 21, 2034. This patent earned 188 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP27016
- Filed
- March 21, 2014
- Granted
- August 2, 2016
- Expires
- September 25, 2034
- Assignee
- DOFFERHOFF HANS, KWEKERIJ DE BOEZEM B V
- Inventor
- DOFFERHOFF HANS
Abstract
A new cultivar of Gentiana makinoi plant named ‘Blue Star’ that is characterized by its upright and globular plant habit, its violet-blue flowers, its free flowering plant habit, and its long bloom period lasting for 8 to 12 weeks from mid-July to mid-September in The Netherlands.
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 Gentiana plant named ‘Blue Star’ as herein illustrated and described.
Read the full patent: US Plant Patent PP27016 in full — the complete specification, every figure, and the file history.