US Plant Patent PP24299
Calypso
Hop plant named ‘Calypso’
UNDER PATENT
Still under patent. Protection ends May 17, 2032.
Twenty years from the filing date would end on February 1, 2032. This patent earned 106 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP24299
- Filed
- February 1, 2012
- Granted
- March 11, 2014
- Expires
- May 17, 2032
- Assignee
- STEINER INC S S, JESKE ROGER D, MATTHEWS PAUL D
- Inventor
- JESKE ROGER D; MATTHEWS PAUL D
Abstract
A new and distinct aroma variety of hop, Humulus lupulus L., named ‘CALYPSO’ is characterized by its large yield, unique aroma and resistance to hop powdery mildew.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
We claim: 1. A new and distinct aroma hop plant, named ‘CALYPSO’ as herein described and illustrated.
Read the full patent: US Plant Patent PP24299 in full — the complete specification, every figure, and the file history.