US Plant Patent PP33918
SONKOOT6
Acer plant named ‘SONKOOT6’
UNDER PATENT
Still under patent. Protection ends June 17, 2041.
No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.

The record
- Patent number
- PP33918
- Filed
- June 17, 2021
- Granted
- February 1, 2022
- Expires
- June 17, 2041
- Inventor
- KOOT JOHANNES ADRIANUS MARIA
Abstract
A new cultivar of Acer palmatum tree named ‘SONKOOT6’ that is characterized by its weeping plant habit, its young leaves that are purple-brown in color, its mature leaves that are dark green in color , and its foliage that is wine red in color in the fall.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
It is claimed: 1. A new and distinct cultivar of Acer palmatum tree named ‘SONKOOT6’ as herein illustrated and described.
Read the full patent: US Plant Patent PP33918 in full — the complete specification, every figure, and the file history.