Patents: Bangladesh

General Information

International Agreement : The General Agreement on Tariffs and Trade 1994 (GATT), WIPO, Paris Convention, Berne Convention for the Protection of Literary and Artistic Works, Universal Copyright Convention, 1952 

Patent types :

  1.  Patent for single invention 
  2. Single patent for cognate invention
  3. Patents of addition
  4. Reciprocity application

Novelty requirements : A Patent may be granted for a new invention. 

Invention means any new and useful –

  • Art, process, method or manner of manufacture 
  • Machines, apparatus or other article, 
  • Substance produced by manufacture, and includes any new or useful improvement of any of them and an alleged invention.

Claiming Priority : A priority may be claimed in respect of a patent registered in any country under The Paris Convention Union within one year of the registration. Bangladesh has not yet adopted PCT so PCT National Phase will not get priority.

Examination : Yes

Protection Period : Protection period for a patent in Bangladesh is 16 years. After 4 years of the grant of the patent it may be renewed for each year up to 16th year.

Publication : Yes - after finishing the sealing formalities the patent number and the invention title will be published in The National Gazette.

Annuities : Annuity fees may be paid yearly. It also may be paid for several years in advance. Annuity fees may be paid within 3 months from the date of expiration of the year/s for which annuity fees are paid.

Compulsory licensing : If the applicant interested, an application can be made to the patent office for a compulsory licenses and thus a license may obtained.

Working or Normal working of patents/inventions : Once the patent has been granted it will be protected as per the claims made by applicant/s till its full term (16 years). Within four years of publishing in The National Gazette one can file an opposition for the patent. 


Filing Requirements

Patent Filing Requirements

  1. Complete specification & claims.
  2. Complete specification text. 
  3. Drawings on tracing cloth / film (size 8" x 13”) or a scanned copy send by email. 
  4. Details of applications field in other countries.
  5. Assignment by inventor(s) to Applicant(s)
  6. Name, address and nationality of the Applicant.
  7. Authorization Form (no notarization or legalization required).


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