A patent application in India typically includes Form 1 (application), Form 2 (provisional or complete specification with claims, description, drawings and abstract), Form 3 (foreign filing undertaking), Form 5 (declaration of inventorship, for complete specifications), Form 26 (power of attorney if an agent files), and priority documents for convention applications.
Core forms
- Form 1 application
- Form 2 specification
- Form 3 statement and undertaking
- Form 5 declaration of inventorship
- Form 26 power of attorney
Specification contents
- Title and field of invention
- Background and summary
- Detailed description and best method
- Claims (complete specification)
- Drawings and abstract
Special cases
Startup or small entity proof for fee benefits, and biological material deposit details where applicable.
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Claims define protection; invest in careful drafting.
Frequently asked questions
Are drawings mandatory?
Only where needed to understand the invention, but they usually help.
What is Form 3?
It discloses corresponding foreign applications and undertakes to keep the office informed.
Is Form 18 part of filing?
Form 18 requests examination and can be filed with or after the application within the time allowed.
Do startups need proof for lower fees?
Yes, such as DPIIT recognition.
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