Official Thai Patent Forms
Welcome to our directory of official patent forms issued by the Department of Intellectual Property (DIP) of Thailand. To streamline your search, we've provided direct links to the relevant DIP pages for different patent types, as well as categorized direct links to the most commonly used forms for applications, prosecution, and maintenance.
Important Note: All official forms linked here are in Thai language. For accurate completion, proper submission, and to ensure compliance with Thai patent law and practice, we strongly recommend consulting with a qualified Thai patent agent or attorney.
Access All Official DIP Patent Forms
These links will take you directly to the primary, official forms pages on the DIP website, organized by patent type.
Access Official DIP Invention & Petty Patent Forms
Access Official DIP Design Patent Forms
Key Patent Forms
Below is a categorized list of essential patent forms. Please click on the form number or description to access the respective document.
PCT National Phase Entry in Thailand
Application for Protection of Invention in Thailand (to bring an international PCT application into the Thai national system)
Request for Reinstatement of Rights (to request revival of a PCT national phase application after missing the 30-month deadline)
Request for Review of International Application Examination (for seeking a review of the examiner's findings on an international application)
Request for Early Processing of Application (to accelerate the processing of a national phase application before the 30-month deadline)
Direct Filing / Paris Convention Filing Forms
Application Form for Invention Patent / Petty Patent / Design Patent (for initial filing of all three types of patent applications)
Request to Claim Priority from First Foreign Filing Date (to claim the benefit of an earlier filing date in another country)
Statement of Applicant's Right to Apply for Invention Patent / Petty Patent / Design Patent (to affirm the legal right of the applicant(s) as inventor or designer to seek the patent) [An English version of this form is also available here]
Prosecution and Examination Forms
Request for Change of Patent Type (for converting an invention patent application to a petty patent application or vice versa)
Request for Amendment of Application (to make changes to during the examination process)
Request for Substantive Examination of Invention (to proceed with the full examination for an invention patent after publication)
Request for Examination of Invention by Other Institutes (to request that an invention be examined by other local or international institutes)
Opposition and Appeal Forms
Opposition to Patent Application (to challenge the grant of a patent application after its publication)
Counter-Statement (applicant's reply to an opposition filed against their patent application)
Appeal Form (to appeal an examiner's refusal or director-general's opposition decision to the Patent Board)
Request to Submit Additional Evidence or Statement (for submitting further evidence or arguments during opposition or appeal proceedings)
Maintenance & Post-Grant Forms
Request for Payment of Annual Fee / Lump-sum Fee / Renewal (for paying annuity or renewal fees to keep a patent or petty patent in force)
Request for Extension of Annual Fee Payment Period (to request additional time to pay patent annual fees)
Request for Registration of License (for registering a patent license agreement with the DIP)
Request for Registration of Assignment or Transfer by Inheritance (to record a change in ownership of a patent or petty patent, whether through assignment (voluntary transfer) or inheritance)
Request to Record Consent for Others to use patent / petty patent rights (for recording a voluntary license agreement where the patent owner grants usage rights)
Request for Compulsory License to use patent / petty patent rights (to seek a non-voluntary license to use a patented invention under specific legal conditions)
Request to Cancel License for patent / petty patent rights (to terminate or cancel a recorded patent license agreement)
Request for Special Remuneration (for requesting special compensation for an employee invention in specific circumstances)
Request for Surrender of Rights or Partial Claim Surrender (to voluntarily give up a patent, petty patent, or specific claims within it)
Request for Replacement Certificate or Replacement License Certificate (to obtain a replacement for a lost or damaged certificate)
Miscellaneous Forms
General Request Form / Other Requests (a versatile form for submitting requests not covered by a specific form)
Continuation Sheet for Attachment to Request (used as an additional page when the main form doesn't have enough space)
Request for Extension of Time (to request an extension of time for submitting required documents or response)
Disclaimer: This page is intended as a helpful resource for accessing official forms. The information provided does not constitute legal advice. For any questions regarding specific forms or your patent application process, please consult a qualified Thai intellectual property professional.