US Plant Patent PP35117
Toncka 306
Heuchera plant named ‘Toncka 306’
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
- PP35117
- Filed
- October 7, 2022
- Granted
- April 18, 2023
- Expires
- October 7, 2042
- Inventor
- HOLTMAAT HENRICUS MARIA JOSEPH
Abstract
A new cultivar of Heuchera plant named ‘Toncka 306’ that is characterized by its glossy foliage that is green in color, and have a small black markings in the centers surrounding the main veins, its floriferous blooming habit, its remontant flowering, its small flowers that are white in color, and its sterile flowers.
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 306’ as herein illustrated and described.
Read the full patent: US Plant Patent PP35117 in full — the complete specification, every figure, and the file history.