Seminars hosted by Shiga

Double Patenting Rejections in Chemical Field Directed to Parent and Divisional Applications

Date and Time
6:00 p.m. (JST) on Friday, September 8, 2023
Lecture language
Materials language
Practice Area
Shiga International Patent Office

Comments from Speaker

Double patenting rejections in the chemical field in the Japanese patent practice are really unique and a little bit tricky. Particularly, applicants have to pay attention to claim recitations in the Markush form which is often used in the chemical field. In this Webinar, we will explain the unique features of double patenting rejections in Japan in detail and introduce our suggestions on strategies to overcome this type of rejection.


  • The webinar is expected to consist of a 20 to 30-minute presentation and a 5 to 10-minute Q&A session.
  • If you miss watching the live session, you will receive an on-demand recorded video link a day after the live session is over. Please still register with the registration form below.
  • This webinar is aimed at providing IP information to our business partners and clients from overseas. Registration from persons who work for IP firms or law firms in Japan will not be approved as this may be deemed as a conflict of interest with our business.