US Plant Patent PP33127
Grifon-8go
Maitake mushroom named ‘Grifon-8go’
UNDER PATENT
Still under patent. Protection ends September 23, 2039.
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
- PP33127
- Filed
- September 23, 2019
- Granted
- June 1, 2021
- Expires
- September 23, 2039
- Assignee
- HOKUTO CORP
- Inventor
- TAKANO MEGUMI; NAKAGOSHI AYUMI
Abstract
The present variety of mushroom named ‘Grifon-8go’ was cultivated by the gathering and repeated breeding of Maitake mushrooms having dominant traits, which has good qualitative character and appearance, a strong curving cap of high quality, and enhanced cultivation. This edible mushroom is exquisite in stability, reproducibility and uniformity when being produced.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
What is claimed is: 1. A new, distinct variety of Maitake mushroom as substantially illustrated and described in the specification.
Read the full patent: US Plant Patent PP33127 in full — the complete specification, every figure, and the file history.