US Plant Patent PP16720
RIE 03
Hydrangea plant named ‘RIE 03’
PUBLIC DOMAIN
Patent expired March 23, 2025. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on November 12, 2024. This patent earned 131 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP16720
- Filed
- November 12, 2004
- Granted
- June 27, 2006
- Expires
- March 23, 2025
- Assignee
- IRIE RYOJI
- Inventor
- IRIE RYOJI
Abstract
A new cultivar of Hydrangea plant named ‘RIE 03’ that is characterized by broad upright habit, large dark-green leaves, flowers that are yellow-green and pink in color, and unique inflorescence development. In combination these traits set ‘RIE 03’ apart from all other existing varieties of Hydrangea known to the inventor.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct cultivar of Hydrangea plant named ‘RIE 03’ as described and illustrated herein.
Read the full patent: US Plant Patent PP16720 in full — the complete specification, every figure, and the file history.