US Plant Patent PP21925
Cascade Creeper
Tiarella plant named ‘Cascade Creeper’
UNDER PATENT
Still under patent. Protection ends December 26, 2029.
Twenty years from the filing date would end on December 14, 2029. This patent earned 12 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP21925
- Filed
- December 14, 2009
- Granted
- May 17, 2011
- Expires
- December 26, 2029
- Assignee
- TERRA NOVA NURSERIES INC
- Inventor
- EGGER JANET N
Abstract
A new and distinct cultivar of Tiarella plant characterized by large palmately-lobed leaves, with the terminal lobe the longest, a trailing habit, broad, 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 PP21925 in full — the complete specification, every figure, and the file history.