US Plant Patent PP31279
Marmo22go
Bunashimeji mushroom named ‘Marmo22go’
UNDER PATENT
Still under patent. Protection ends March 30, 2038.
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
- PP31279
- Filed
- March 30, 2018
- Granted
- December 24, 2019
- Expires
- March 30, 2038
- Assignee
- HOKUTO CORP
- Inventor
- NAKAGOSHI AYUMI; TAKANO MEGUMI; OUCHI KENJI
Abstract
The present variety of mushroom named ‘Marmo22go’ was cultivated by the gathering and repeated breeding of Bunashimeji mushrooms having dominant traits, which has good qualitative character and appearance, a thick white stem, a large mushroom size, and a resistance to high temperatures. 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 Bunashimeji mushroom as substantially illustrated and described in the specification.
Read the full patent: US Plant Patent PP31279 in full — the complete specification, every figure, and the file history.