US Plant Patent PP24880
Chestnut Hill
Prunus plant named ‘Chestnut Hill’
UNDER PATENT
Still under patent. Protection ends November 1, 2032.
Twenty years from the filing date would end on June 12, 2032. This patent earned 142 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP24880
- Filed
- June 12, 2012
- Granted
- September 16, 2014
- Expires
- November 1, 2032
- Inventor
- AIELLO ANTHONY S; DILLARD ROCHELLE J
Abstract
A new and distinct Prunus laurocerasus plant of unknown parentage is provided. The new plant can be readily distinguished from other plants of the species including the ‘Otto Luyken’ cultivar (non-patented in the United States). A slow to moderate growth habit is displayed to form a compact generally rounded plant with dense foliage. The foliage is dark green in coloration and displays more glossiness on the upper surface than commonly observed for the ‘Otto Luyken’ cultivar. Superior resistance to Coryneum blight has been observed. The new plant is well suited for providing attractive ornamentation in a hedge, foundation planting, or when grown en masse.
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 Prunus laurocerasus plant having the following combination of characteristics: (a) displays an attractive more compact growth habit than the ‘Otto Luyken’ cultivar, (b) displays a slow to moderate growth rate, (c) displays attractive dense dark green foliage having more glossiness on the upper surface than commonly observed for the ‘Otto Luyken’ cultivar, (d) is more resistant to Coryneum blight than the ‘Otto Luyken’ cultivar, and (e) is well suited for providing attractive ornamentation; substantially as illustrated and described.
Read the full patent: US Plant Patent PP24880 in full — the complete specification, every figure, and the file history.