US Plant Patent PP17545
JENtwelve
Miniature rose plant ‘JENtwelve’
PUBLIC DOMAIN
Patent expired June 4, 2025. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on March 23, 2025. This patent earned 73 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP17545
- Filed
- March 23, 2005
- Granted
- April 3, 2007
- Expires
- June 4, 2025
- Assignee
- CAL EUROP
- Inventor
- JENSEN SVEND
Abstract
A new miniature rose plant which has abundant, long lasting, red colored flowers and attractive foliage. The variety successfully propagates from softwood cuttings and is suitable for year round production in commercial glass houses as a flowering pot plant. This new and distinct variety has shown to be uniform and stable in the resulting generations from asexual propagation.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct variety of rose plant of the miniature class, substantially as herein illustrated and described as a distinct and novel rose variety due to its abundant, long lasting, red colored flowers, attractive long lasting foliage, vigorous and compact growth, year round flowering under glasshouse conditions, suitability for production from softwood cuttings in pots, and durable flowers and foliage which make the variety suitable for distribution in the floral industry.
Read the full patent: US Plant Patent PP17545 in full — the complete specification, every figure, and the file history.