Quick Answer
To obtain a patent in India under the Patents Act, 1970, an inventor or assignee must file an application (Form 1) accompanied by either a Provisional or Complete Specification (Form 2) with the Indian Patent Office (IPO). The invention must satisfy three statutory criteria: novelty (absolute novelty worldwide), inventive step (non-obviousness to a person skilled in the art), and industrial applicability. Following formal publication after 18 months, examination must be specifically requested (Form 18). Once examination objections raised in the First Examination Report (FER) are successfully traversed, letters patent are granted for a term of 20 years.
Key Takeaways
- Absolute Novelty is Mandatory: Any prior public demonstration, paper publication, or commercial sale before filing permanently destroys patentability.
- Provisional Filings Lock Priority: Filing a provisional specification gives you a 12-month window to complete R&D before submitting the complete specification.
- Examination is Not Automatic: A Request for Examination (RFE) via Form 18 must be filed within statutory timelines (31 months from priority under 2024 Amended Rules).
- Startup Concessions: DPIIT-recognized startups and MSMEs receive an 80% statutory fee waiver and qualify for expedited examination under Rule 24C.
- Statutory Term: A granted Indian patent provides exclusive monopoly rights for 20 years from the international filing or priority date.
Statutory Criteria for Patentability in India
Under Section 2(1)(j) of the Patents Act, 1970, an "invention" means a new product or process involving an inventive step and capable of industrial application. These criteria are strictly assessed:
- Novelty (Section 2(1)(l)): The matter disclosed must not have been anticipated by publication in any document or used in the country or elsewhere in the world before the filing date.
- Inventive Step (Section 2(1)(ja)): The feature must involve a technical advancement as compared to existing knowledge, or have economic significance, making the invention non-obvious to a person skilled in the art.
- Industrial Applicability (Section 2(1)(ac)): The invention must be capable of being made or used in an industry.
- Non-Excluded Subject Matter: The invention must not fall under negative exclusions enumerated in Section 3 (such as Section 3(d) for mere discovery of new forms of known substances, or Section 3(k) for computer programs per se and mathematical methods).
The Step-by-Step Patent Filing Process
Step 1: Prior-Art & Patentability Search
Prior to drafting, conducting a global prior-art search across patent databases (IP India, USPTO, EPO Espacenet, WIPO Patentscope) and non-patent literature is indispensable. This confirms whether similar solutions exist and assists counsel in structuring claims to highlight distinct inventive differences.
Step 2: Drafting the Specification
A patent specification is both a technical document and a legal instrument. If the invention is still undergoing refinements, a Provisional Specification is filed to secure an early priority date. Within 12 months, a Complete Specification must be filed under Section 9. The complete specification must contain a description, drawings, best method of performance, and most importantly, the patent claims, which define the statutory boundaries of your monopoly.
Step 3: Filing Required Statutory Forms
Applications are submitted electronically via the Controller General of Patents, Designs and Trade Marks (CGPDTM) e-filing portal across four branch offices (Delhi, Mumbai, Chennai, Kolkata):
- Form 1: Application for Grant of Patent.
- Form 2: Provisional or Complete Specification, Drawings, and Abstract.
- Form 3: Statement and Undertaking regarding foreign filings under Section 8.
- Form 5: Declaration as to Inventorship.
- Form 26: Power of Attorney authorizing the Patent Agent / Advocate.
Step 4: Publication in the Official Journal
By default under Section 11A, patent applications are kept confidential for 18 months from the filing or priority date, after which they are published in the Patent Office Journal. Applicants seeking expedited commercialization may file Form 9 for early publication within one month.
Step 5: Request for Examination & FER Response
The patent office does not automatically examine applications. Form 18 must be submitted to initiate substantive examination. The examiner issues a First Examination Report (FER) listing any objections regarding novelty, inventive step, or Section 3 exclusions. The applicant has six months (extendable by three months under Form 4) to file a comprehensive legal and technical reply.
Step 6: Hearing & Grant of Patent
If outstanding objections remain following the written response, the Controller schedules a formal hearing under Section 14. Upon satisfaction of all statutory criteria, the Controller grants the patent, publishes the grant in the Journal, and issues the Certificate of Patent.
Common Mistakes to Avoid
- Premature Public Disclosure: Demonstrating the product at an expo, publishing in a research journal, or selling to early customers prior to filing destroys novelty.
- Missing the 12-Month Complete Deadline: If a complete specification is not filed within precisely 12 months of the provisional filing date, the application is deemed abandoned under Section 9(1).
- Failing to Comply with Section 8: Applicants must update the Indian Patent Office regarding all corresponding foreign patent filings via Form 3; failure to disclose can serve as a ground for patent revocation under Section 64(1)(m).
- Vague or Overly Broad Claims: Claims drafted without technical precision invite immediate Section 3(k) or Section 2(1)(ja) rejections that are difficult to cure without impermissible broadening.
Consult a Registered Indian Patent Attorney
Drafting patent claims that withstand commercial challenges and judicial scrutiny requires specialized techno-legal expertise. Speak directly with our patent team to conduct prior-art clearance and structure your complete specification.
Primary Legal Authorities & Sources
- The Patents Act, 1970 (Act No. 39 of 1970), as amended.
- The Patents Rules, 2003, as amended by the Patents (Amendment) Rules, 2024.
- Manual of Patent Office Practice and Procedure, Controller General of Patents, Designs and Trade Marks (CGPDTM), Government of India.
- Guidelines for Examination of Computer-Related Inventions (CRIs), Office of the CGPDTM.