US Plant Patent PP31719
Emerald Sprite
Cotoneaster plant named ‘Emerald Sprite’
UNDER PATENT
Still under patent. Protection ends September 24, 2038.
Twenty years from the filing date would end on September 21, 2038. This patent earned 3 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP31719
- Filed
- September 21, 2018
- Granted
- May 5, 2020
- Expires
- September 24, 2038
- Assignee
- UNIV OREGON STATE
- Inventor
- CONTRERAS RYAN N
Abstract
‘Emerald Sprite’ is a new Cotoneaster cultivar with a highly compact, mounding habit, extremely dense foliage, short internodes, and improved fire blight resistance.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
I claim: 1. A new and distinct cultivar of Cotoneaster plant as illustrated and described.
Read the full patent: US Plant Patent PP31719 in full — the complete specification, every figure, and the file history.