US Plant Patent PP26981
20123-91D
Calendula plant named ‘20123-91D’
UNDER PATENT
Still under patent. Protection ends January 27, 2035.
Twenty years from the filing date would end on September 29, 2034. This patent earned 120 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP26981
- Filed
- September 29, 2014
- Granted
- July 26, 2016
- Expires
- January 27, 2035
- Assignee
- NISHIKAWA KOICHIRO
- Inventor
- NISHIKAWA KOICHIRO
Abstract
A new cultivar of Calendula plant, ‘20123-91D’, that is characterized by its compact plant habit with strong stems and thick leaves, its inflorescences with double ray florets that are orange in color on the upper surface and orange suffused with greyed-purple on the lower surface, its lack of disk florets, its long flowering time; blooming for 9 months from spring into winter in Noordwijkerhout, The Netherlands, its very high tolerance to powdery mildew, its very high tolerance to heat and cold, withstanding temperatures below −20° C. in the winter and its ability to be readily propagated by stem 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 variety of Calendula plant named ‘20123-91D’ as described and illustrated herein.
Read the full patent: US Plant Patent PP26981 in full — the complete specification, every figure, and the file history.