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PATENT REGISTRATION PROCEDURE
IN BANGLADESH

Patent licensing in Bangladesh is governed by The Patents and Designs Act, 1911, which was influenced by British patent laws, such as the Patents and Designs Act, 1907. The Act consists of three parts:
 

Part I: Patent laws   •    Part II: Design laws   •    Part III: General provisions

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The Department of Patents, Designs, and Trademarks (DPT) manages patent rights in Bangladesh. Patent protection lasts for 16 years, with the option to renew. During this period, the patent holder has exclusive rights to make, sell, and use the invention in Bangladesh, and can license others to do the same.

The invention must have practical existence.

It must be novel, useful, and non-obvious.

It should not be contrary to morality or law.

Patent Eligibility Requirements:

Bangladesh is a member of the Paris Convention, allowing for conventional priority claims. However, it is not a member of the Patent Cooperation Treaty (PCT), so national phase filing is not possible. An application can still be filed after the 12-month deadline, even without a priority claim.

  • Ordinary Application
    An application filed directly with the Bangladesh Patent Office without claiming priority from any other patent application in progress elsewhere.
     

  • Provisional and Complete Application

    • Provisional Specification: The initial filing with a brief description of the invention. Claims are not mandatory at this stage.

    • Complete Specification: Must be submitted within 9 months of filing the provisional application. It should describe the invention's nature and provide clear instructions for its performance.
       

  • Convention Application
    An application filed in Bangladesh within 12 months of filing a corresponding application in a convention country, with the option to claim single or multiple priorities.
     

  • Patents of Addition

    • Filed for improvements or modifications to an already filed invention under Section 15A of the Patents & Designs Act, 1911.

    • It is dependent on the primary invention and does not require a separate renewal fee.

    • The patent of addition expires along with the primary patent. However, if the main patent is revoked, the patent of addition can be converted into an independent patent, requiring renewal fees as applicable to an original patent.

Patent licensing in Bangladesh is governed by The Patents and Designs Act, 1911, which was influenced by British patent laws, such as the Patents and Designs Act, 1907. The Act consists of three parts:

Part I

​Patent laws

Part II

Design laws

Part III

General provisions

The Department of Patents, Designs, and Trademarks (DPT) manages patent rights in Bangladesh. Patent protection lasts for 16 years, with the option to renew. During this period, the patent holder has exclusive rights to make, sell, and use the invention in Bangladesh, and can license others to do the same.

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