Which is the competent authority for invention patent applications in Bangladesh

no

If the patent is disclosed due to the display at the exposition or unintentional disclosure, the novelty grace period can be enjoyed within 6 months before the filing date/priority date.

via Paris Convention : 6 months from earliest priority date.

• Grant fee: The applicant shall pay the granted official fee within 2 months after receiving the granted notice.
• Annuity: It needs to be paid year by year starting from the fifth year from the application date.

Inventions under the via Paris Convention : 12 months from the earliest priority date.

It is protected for 5 years from the date of application, renewed every 5 years, and can be renewed twice, up to a maximum of 15 years.

DPDT conducts formality examination and substantive examination of invention patent applications. The substantive examination starts automatically, and the applicant does not need to file a separate request for substantive examination. If the conditions for patent granted are met, the patent application will enter the public stage. If there is no objection within 4 months after publication, the patent application will be authorized.

• Authorization Fee: None
• Annuity: payable year by year starting from the 6th year from the date of application

Bangladesh Patent and Trademark Office

English: Department of Patents, Designs and Trademarks Ministry of Industries, abbreviation: DPDT

Website: Department of Patents, Designs and Trademarks (DPDT)