US Plant Patent PP26890
Dragon Heart
Colocasia plant named ‘Dragon Heart’
UNDER PATENT
Still under patent. Protection ends July 24, 2034.
Twenty years from the filing date would end on January 31, 2034. This patent earned 174 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP26890
- Filed
- January 31, 2014
- Granted
- June 28, 2016
- Expires
- July 24, 2034
- Assignee
- WILLIAMS BRIAN PAUL, BRIAN S BOTAN
- Inventor
- WILLIAMS BRIAN PAUL
Abstract
A new cultivar of Colocasia plant named ‘Dragon Heart’ that is characterized by its large plant habit growing up to 2.1 m in height, its large leaves up to 90 cm in length, its velvety leaves that are very dark purple-black in color, its production of large tubers up to 15 cm in diameter, and its maroon petioles that are streaked with dark maroon and black.
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 Colocasia plant named ‘Dragon Heart’ as herein illustrated and described.
Read the full patent: US Plant Patent PP26890 in full — the complete specification, every figure, and the file history.