US Plant Patent PP22712
Oregon Trail
Tiarella plant named ‘Oregon Trail’
UNDER PATENT
Still under patent. Protection ends November 24, 2030.
Twenty years from the filing date would end on November 17, 2030. This patent earned 7 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP22712
- Filed
- November 17, 2010
- Granted
- May 1, 2012
- Expires
- November 24, 2030
- Assignee
- TERRA NOVA NURSERIES INC, EGGER JANET
- Inventor
- EGGER JANET
Abstract
A new and distinct cultivar of Tiarella plant characterized by medium size, palmately-lobed leaves, with the terminal lobe the longest, an extremely good trailing habit, low inflorescence number for a cleaner look, distinct, dark brown markings following the veins, and excellent vigor.
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 Tiarella plant herein illustrated and described.
Read the full patent: US Plant Patent PP22712 in full — the complete specification, every figure, and the file history.