Singapore Patent Filing Requirements
Convention and Non-Convention Applications


Please Note: Requirements can change without notice and the following should be taken as a guide only. Always contact us for advice relevant to your specific situation.

Minimum Requirements for Obtaining a Filing Date
(Convention applications must be filed within 12 months of the earliest priority date - extendible in some circumstances)

  • Applicant's name, address, nationality and State of incorporation (if appropriate)
  • Informal description of the invention including at least one claim, in English
  • Informal drawings (if any)
  • If priority claimed, date and country of filing of priority application
  • For inventions relating to biological material, indication that a deposit has been made with an International Depository Authority.

Documents That May Be Late Filed*

  • Formal copy of the description
  • Formal drawings
  • An abstract of the invention

*In practice the Patent Office will set a due date for filing these items and this is usually three months.

Within 16 Months of Priority Date (if claimed) or Singapore Filing Date (if no priority claimed)

  • The number of the priority application
  • If the applicant(s) is not the inventor(s), the inventor's name, address, nationality, whether the inventor was resident in Singapore at the time the invention was made and details of applicant's right to apply for the patent (e.g. by employment or assignment)
  • Search Deadline:
    • File application numbers, filing dates and country of filing for all corresponding applications in AU, NZ, GB, CA and EP (in English), US, JP and PCT (not designating Singapore) or
    • Take no action and file request for combined search and examination at examination deadline or
    • File a request for search and pay search fee
  • For inventions relating to biological material
    • Name of the International Depository Authority
    • Date the biological material was deposited
    • Accession number for the deposit
Within 28 Months of Priority Date (if claimed) or Singapore Filing Date (if no priority claimed)
  • Examination Deadline:
    • If details of corresponding applications filed at search deadline:
      • File certified copy of a granted corresponding application or a copy of the notice of acceptance and all official actions and responses thereto; or
      • Request examination and file copy of the search report issued on any corresponding application along with full copies of all citations and a patent family list for citations not in English or
      • Request combined search and examination
    • If no action taken at search deadline, request combined search and examination
    • If request for search filed at search deadline, request examination.

Within 54 Months of Priority Date (if claimed) or Singapore Filing Date (if no priority claimed)

  • Pay Grant Fee - Any amendments to the application and/or the filing of a divisional application must be done before payment of the grant fee.


Some deadlines may be extendable depending upon circumstances, please contact us for details.


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Filing Requirements and Timelines - Disclaimer
IMPORTANT - Please read this disclaimer carefully as it concerns your rights.

The Filing & Prosecution Requirements and Steps & Timelines are intended to provide general guidelines only and not advice with regard to specific cases. The information given is non-exhaustive. Furthermore the relevant law and its interpretation is liable to change.

You should contact us for advice specific to your own situation. Whilst every effort has been made to ensure the accuracy of the information, no responsibility can be accepted by any member (firm or individual) of the Lloyd Wise Group for any inaccuracies or omissions, however caused therein. Nor can any responsibility be accepted for any loss or damage to any company or person as a result of actions taken or not taken on the basis of the Filing & Prosecution Requirements and Steps & Timelines.