The short answer

Filed your invention abroad first? Plan the Bangladesh filing around Section 15. Collect your foreign search and examination reports early, file them with the Bangladesh application or within 90 days, and diarise a 6-month update. This page shows how to run that in practice.

90 days
Filing window
6 months
Status updates
Early
Collect reports
Docket
Every foreign file

A working routine for foreign filings

1

Before filing in Bangladesh

  • List every country where the invention is filed, alone or with others
  • Pull the latest search and examination reports
2

At filing or within 90 days

  • Submit the statement, reports and any grant or refusal copies
  • Ask early if translation time is needed (up to 60 more days)
3

Until the foreign case ends

  • Send a status update every 6 months
  • Report each grant, refusal, withdrawal or amendment

Example: US and India first

An applicant files in the United States and India, then in Bangladesh. The Bangladesh file must name both countries, include their reports, and be updated when either office grants or refuses.

Why it matters. An undisclosed foreign filing is a ground of opposition and can cause the application to be deemed refused. See the full document checklist.

Cross-border patent questions

Does this apply to joint foreign filings?

Yes, alone or jointly with another person.

What if the foreign patent is refused?

Send the refusal order to the DPDT as part of your update.

Who should track the deadlines?

Your local agent. Ask for a written docket entry.

Need help with a patent in Bangladesh?

SUPREMEiP® drafts, files and prosecutes patents in Bangladesh for local and foreign applicants. Send us your invention summary.

#CrossBorderIP#PatentBangladesh#Section15#IPLaw

Law and fees checked October 2026. General information, not legal advice. Written by the IP team at SUPREMEiP®.