US Plant Patent PP21416
Madeline
Cupressus leylandii tree named ‘Madeline’
UNDER PATENT
Still under patent. Protection ends September 29, 2027.
Twenty years from the filing date would end on April 3, 2027. This patent earned 179 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP21416
- Filed
- April 3, 2007
- Granted
- October 26, 2010
- Expires
- September 29, 2027
- Assignee
- APPALOOSA ACRES INC
- Inventor
- AHRENS SCOTT
Abstract
A new and distinct cultivar of Cupressus leylandii tree is described herein. The new variety is resistant to fungus and possesses increased growth rate (e.g., height, spread, trunk) compared to the commercially-available Leyland Cypress ‘Leighton Green’.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and unique variety of Cupressus leylandii tree named ‘Madeline’ as herein shown and described.
Read the full patent: US Plant Patent PP21416 in full — the complete specification, every figure, and the file history.