US Plant Patent PP35264
Toncka 390
Heuchera plant named ‘Toncka 390’
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
- PP35264
- Filed
- October 7, 2022
- Granted
- July 11, 2023
- Expires
- October 7, 2042
- Inventor
- HOLTMAAT HENRICUS MARIA JOSEPH
Abstract
A new cultivar of Heuchera plant named ‘Toncka 390’ that is characterized by its strong and sturdy plant habit, its leaf colors that are grey and tinged grey-purple, its floriferous blooming habit, and its flowers that are white and moderately red-purple in color.
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 390’ as herein illustrated and described.
Read the full patent: US Plant Patent PP35264 in full — the complete specification, every figure, and the file history.