Prosecution Histroy

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Prosecution Histroy

Post by Abhishek » Thu Apr 13, 2017 6:02 am

How do i search prosecution history of a patent, on Japanese Patent Office's website?

EPO / Asia Info
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Joined: Thu Dec 04, 2014 8:03 am

Re: Prosecution Histroy

Post by EPO / Asia Info » Mon Apr 24, 2017 9:43 am

Dear Abhishek,

Thank you for your post and your question.

Please be informed that the Japan Patent Office provides the possibility for electronic file inspection via their “Japan Platform for Patent Information” (J-PlatPat) ... BTmTopPage.

As you will need to use a Japanese interface, you can find a search guide on how to access the electronic file wrapper on the EPO’s webpages for Asian patent information ... 016_en.pdf.

Alternatively, we can order file wrappers on your behalf with our colleagues at the JPO. For a free cost estimate please contact us any time at

We hope we were able to help you with the provided information.

In case of any additional questions, please do not hesitate to post your question here or please send us an email to

With best regards,

Asian Patent Information Services Team

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