In Singapore, patent protection is obtainable by way of either entering the national phase of a Patent Cooperation Treaty (PCT) application or filing a direct national application.
1. Legislations:
The Singapore patent protection is governed by the Patents Act (Cap. 221).
2. Patentability Criteria:
A Singapore patent should satisfy the following criteria to claim protection:
new
involves an inventive step
capable of industrial application
3. Utility Innovations:
N/A in Singapore
4. Membership:
√ – Paris Convention
√ – PCT
Singapore is a member of the Paris Convention from 1995, whereby applications from convention countries will be subject to the same priority date in Singapore. The application for priority has to be made within six months of the first application in a convention country.
Singapore is also a member of the PCT since 1995. An applicant who has made an international patent application may file and/or prosecute the patent application during its national phase entry into Singapore within 30 months from the filing date of the international application or from the earliest priority date of the application if a priority is claimed.
5. Rule of Priority:
“First to File” is the rule followed by Singapore in determining priority of Singapore patents.
6. Duration:
The term of a Singapore patent is 20 years from the date of filing subject to the payment of renewal fees.
1. Application
Every applicant is required to file an application to the registrar of patents within 12 months of priority date.
2. Publication
The application will be published after 18 months from the date of filing of the application.
3. Examination
There are 2 examination routes.
Option 1: Request for local Search and Examination within 36 months from the priority date.
Option 2: Request for Modified Examination within 54 months from the priority date. If option 2 is followed, the applicant shall submit prescribed information on the foreign corresponding application, with a claim correspondence table under a supplementary examination process. The applicants can respond to negative examination reports and supplementary examination reports within 2 months from the date of receipt of Notice of Intention to Refuse.
4. Registration
Upon receiving Notice of Eligibility to Proceed to Grant from the Patent Registrar, the applicants can submit a Request for Grant within 2 months. On grant, a certificate of grant would be issued, and this fact and date of grant will be published in the Patents Journal.
The following information and/or documents are required to file an application for a Singapore patent:-
Direct National Application:-
1. Request for the grant of a patent (PF 1(2004)):-
a) the name and address of the applicant;
b) the name and address of the inventor;
c) a specification comprising a description, claims and any necessary drawings; and
d) the country and filing particulars of basic application whose priority is claimed.
2. Appointment of Patent Agent (PF 41)
3. A statement explaining how the applicant derives its right to the patent from the inventor, normally by virtue of assignment or employment (PF 8).
4. There is no requirement for the filing of an assignment from inventor to applicant.
PCT National Phase Application
1. Form 37;
2. A copy of the PCT application in English language ( i.e. request form PCT/RO/101);
3. The details of the PCT application (suitably, the bibliographic page as published by WIPO);
4. One copy of the PCT specification as originally filed (in or translated to English);
5. One copy of any amendments filed in the international phase (in or translated to English);
6. An Appointment of Agent form signed by the applicant; and
7. A statement explaining how the applicant derives its right to the patent from the inventor, normally by virtue of assignment or employment (PF 8).
ITEMS | OFFICIAL FEES (USD) | PROFESSIONAL FEES (USD) |
---|---|---|
1.1 Filing application for grant of a Patent with specification (excluding drafting and typing) | 150 | 630 |
1.2 Filing a PCT national phase entry application | 180 | 630 |
2.1 Filing Request for Search or Supplementary Search Report | 1,450 | 450 |
2.2 Filing Request for an Examination – Each claim in excess of 15 claims | 1,190 65 | 700
– |
3. Filing Request for Search and Examination (IPOS ISR/IPEA SGD 1,650) – Each claim in excess of 15 claims | 1,630
65 | 700
– |
4. Filing Request for Supplementary Examination Report and preparation of Claims Comparison Analysis | – | 700 |
5. Filing Request for Examination Review Report with response/amendments (if any) | 1,790 | 500 onwards |
6. Filing request for extension of time
– Each month | 170
170 | 300
250 |
7. Responding to Written Opinion
– Each claim in excess of 15 claims (taking effect from 1 April 2026 and applicable for examination request filed after 1 September 2025) | –
65 | 350 onwards |
8. Preparing and filing assignment document | 60 | 170 – 500 |
9. Filing request for issuance of Certificate of Grant and forwarding certificate
– Each claim in excess of 20 claims (if not paid during Search and Examination stage) | 180
34 | 380
– |
10. Application to amend specification after grant
Opposition to amendment of specification after grant | 1,050
400 | 170
300 onwards |
11. Preparing and filing of miscellaneous documents | varies | 100 onwards |
12. Annuities for maintaining patents | ||
Before end of 5th anniversary | 145 | 200 |
Before end of 6th anniversary | 145 | 200 |
Before end of 7th anniversary | 145 | 200 |
Before end of 8th anniversary | 380 | 200 |
Before end of 9th anniversary | 380 | 200 |
Before end of 10th anniversary | 380 | 200 |
Before end of 11th anniversary | 530 | 200 |
Before end of 12th anniversary | 530 | 200 |
Before end of 13th anniversary | 530 | 200 |
Before end of 14th anniversary | 690 | 210 |
Before end of 15th anniversary | 690 | 210 |
Before end of 16th anniversary | 690 | 210 |
Before end of 17th anniversary | 840 | 250 |
Before end of 18th anniversary | 840 | 250 |
Before end of 19th anniversary | 840 | 250 |
Before end of 20th anniversary | 1000 | 250 |
Each year after the 20th anniversary | 735 | 400 |
13. Applying for restoration of a patent
additional application | 420
250 | 340
210 |
*Out-of-pocket expenses and service bureau fees will be billed on your account as and when incurred.
*Official fees are subjected to review by the relevant authorities.
DOCUMENTS | REMARKS | TIME OF FILING |
---|---|---|
Patent specification, claims and abstract in English | no legalization required | On filing date |
Drawings | (if any) | On filing date |
DOCUMENTS | REMARKS | TIME OF FILING |
---|---|---|
Priority documents | Certified copy of the basic patent application. | Within 2 months after filing |
Appointment of Agent (PF41) | Within 2 months after filing |
DOCUMENTS | TIME OF FILING |
---|---|
International Preliminary Report on Patentability based on International Preliminary Search Report (Chapter 1); or | On filing date |
International Preliminary Report on Patentability based on International Preliminary Examination Report (Chapter II) | On filing date |
In Singapore, patent protection is obtainable by way of either entering the national phase of a Patent Cooperation Treaty (PCT) application or filing a direct national application.
1. Legislations:
The Singapore patent protection is governed by the Patents Act (Cap. 221).
2. Patentability Criteria:
A Singapore patent should satisfy the following criteria to claim protection:
new
involves an inventive step
capable of industrial application
3. Utility Innovations:
N/A in Singapore
4. Membership:
√ – Paris Convention
√ – PCT
Singapore is a member of the Paris Convention from 1995, whereby applications from convention countries will be subject to the same priority date in Singapore. The application for priority has to be made within six months of the first application in a convention country.
Singapore is also a member of the PCT since 1995. An applicant who has made an international patent application may file and/or prosecute the patent application during its national phase entry into Singapore within 30 months from the filing date of the international application or from the earliest priority date of the application if a priority is claimed.
5. Rule of Priority:
“First to File” is the rule followed by Singapore in determining priority of Singapore patents.
6. Duration:
The term of a Singapore patent is 20 years from the date of filing subject to the payment of renewal fees.
1. Application
Every applicant is required to file an application to the registrar of patents within 12 months of priority date.
2. Publication
The application will be published after 18 months from the date of filing of the application.
3. Examination
There are 2 examination routes.
Option 1: Request for local Search and Examination within 36 months from the priority date.
Option 2: Request for Modified Examination within 54 months from the priority date. If option 2 is followed, the applicant shall submit prescribed information on the foreign corresponding application, with a claim correspondence table under a supplementary examination process. The applicants can respond to negative examination reports and supplementary examination reports within 2 months from the date of receipt of Notice of Intention to Refuse.
4. Registration
Upon receiving Notice of Eligibility to Proceed to Grant from the Patent Registrar, the applicants can submit a Request for Grant within 2 months. On grant, a certificate of grant would be issued, and this fact and date of grant will be published in the Patents Journal.
The following information and/or documents are required to file an application for a Singapore patent:-
Direct National Application:-
1. Request for the grant of a patent (PF 1(2004)):-
a) the name and address of the applicant;
b) the name and address of the inventor;
c) a specification comprising a description, claims and any necessary drawings; and
d) the country and filing particulars of basic application whose priority is claimed.
2. Appointment of Patent Agent (PF 41)
3. A statement explaining how the applicant derives its right to the patent from the inventor, normally by virtue of assignment or employment (PF 8).
4. There is no requirement for the filing of an assignment from inventor to applicant.
PCT National Phase Application
1. Form 37;
2. A copy of the PCT application in English language ( i.e. request form PCT/RO/101);
3. The details of the PCT application (suitably, the bibliographic page as published by WIPO);
4. One copy of the PCT specification as originally filed (in or translated to English);
5. One copy of any amendments filed in the international phase (in or translated to English);
6. An Appointment of Agent form signed by the applicant; and
7. A statement explaining how the applicant derives its right to the patent from the inventor, normally by virtue of assignment or employment (PF 8).
ITEMS | OFFICIAL FEES (USD) | PROFESSIONAL FEES (USD) |
---|---|---|
1.1 Filing application for grant of a Patent with specification (excluding drafting and typing) | 150 | 630 |
1.2 Filing a PCT national phase entry application | 180 | 630 |
2.1 Filing Request for Search or Supplementary Search Report | 1,450 | 450 |
2.2 Filing Request for an Examination – Each claim in excess of 15 claims | 1,190 65 | 700
– |
3. Filing Request for Search and Examination (IPOS ISR/IPEA SGD 1,650) – Each claim in excess of 15 claims | 1,630
65 | 700
– |
4. Filing Request for Supplementary Examination Report and preparation of Claims Comparison Analysis | – | 700 |
5. Filing Request for Examination Review Report with response/amendments (if any) | 1,790 | 500 onwards |
6. Filing request for extension of time
– Each month | 170
170 | 300
250 |
7. Responding to Written Opinion
– Each claim in excess of 15 claims (taking effect from 1 April 2026 and applicable for examination request filed after 1 September 2025) | –
65 | 350 onwards |
8. Preparing and filing assignment document | 60 | 170 – 500 |
9. Filing request for issuance of Certificate of Grant and forwarding certificate
– Each claim in excess of 20 claims (if not paid during Search and Examination stage) | 180
34 | 380
– |
10. Application to amend specification after grant
Opposition to amendment of specification after grant | 1,050
400 | 170
300 onwards |
11. Preparing and filing of miscellaneous documents | varies | 100 onwards |
12. Annuities for maintaining patents | ||
Before end of 5th anniversary | 145 | 200 |
Before end of 6th anniversary | 145 | 200 |
Before end of 7th anniversary | 145 | 200 |
Before end of 8th anniversary | 380 | 200 |
Before end of 9th anniversary | 380 | 200 |
Before end of 10th anniversary | 380 | 200 |
Before end of 11th anniversary | 530 | 200 |
Before end of 12th anniversary | 530 | 200 |
Before end of 13th anniversary | 530 | 200 |
Before end of 14th anniversary | 690 | 210 |
Before end of 15th anniversary | 690 | 210 |
Before end of 16th anniversary | 690 | 210 |
Before end of 17th anniversary | 840 | 250 |
Before end of 18th anniversary | 840 | 250 |
Before end of 19th anniversary | 840 | 250 |
Before end of 20th anniversary | 1000 | 250 |
Each year after the 20th anniversary | 735 | 400 |
13. Applying for restoration of a patent
additional application | 420
250 | 340
210 |
*Out-of-pocket expenses and service bureau fees will be billed on your account as and when incurred.
*Official fees are subjected to review by the relevant authorities.
DOCUMENTS | REMARKS | TIME OF FILING |
---|---|---|
Patent specification, claims and abstract in English | no legalization required | On filing date |
Drawings | (if any) | On filing date |
DOCUMENTS | REMARKS | TIME OF FILING |
---|---|---|
Priority documents | Certified copy of the basic patent application. | Within 2 months after filing |
Appointment of Agent (PF41) | Within 2 months after filing |
DOCUMENTS | TIME OF FILING |
---|---|
International Preliminary Report on Patentability based on International Preliminary Search Report (Chapter 1); or | On filing date |
International Preliminary Report on Patentability based on International Preliminary Examination Report (Chapter II) | On filing date |