US Plant Patent PP35106
Toncka 308
Heuchera plant named ‘Toncka 308’
UNDER PATENT
Still under patent. Protection ends October 7, 2042.
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
- PP35106
- Filed
- October 7, 2022
- Granted
- April 11, 2023
- Expires
- October 7, 2042
- Inventor
- HOLTMAAT HENRICUS MARIA JOSEPH
Abstract
A new cultivar of Heuchera plant named ‘Toncka 308’ that is characterized by its leaves that are moderately to strongly undulate, its young leaves that are grey-red in color, its mature leaves with grey-purple to brown on the upper surface and grey-purple on the lower surface, and its low number of inflorescences.
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 Heuchera plant named ‘Toncka 308’ as herein illustrated and described.
Read the full patent: US Plant Patent PP35106 in full — the complete specification, every figure, and the file history.