News Linked Multiple Dependent Claims No Longer Acceptable

by Hitoshi Akiba

A multiple dependent claim that depends on another multiple dependent claim (called a “multi-multi claim” in Japan) will no longer be accepted in patent applications filed on and after April 1, 2022, due to legislative revisions published on Feb. 25, 2022.

The following link is a related JPO web page available in Japanese only right now.

https://www.jpo.go.jp/system/patent/shinsa/letter/multimultichecker.html