What are the Different Types of Patent Applications Filed in India?

by  Adv. Rupa K.N  




3 mins


Types of Patent Application


  • An innovation patent is an exclusive right given by the government to the inventor to prevent others from using, producing, and selling the invention for a set amount of time. Additionally, a patent is allowed for enhancements to a prior invention. The inventor can file various types of patent applications to protect the invention.
  • Modern terminology typically refers to the Patent as the right given to an inventor for his invention of any novel, practical, non-obvious procedure, machine, manufactured goods, or material composition. 
  • To advance their cooperation in intellectual property rights (IPR), the Danish Patent and Trademark Office (DKPTO) and the Department for Promotion of Industry and Internal Trade (DPIIT) of India signed a Memorandum of Understanding (MOU) on September 26, 2020.

Exploring Patent Applications in India: A Comprehensive Guide to Different Types and Their Legal Implications

What are the basic tests applicable for any invention to be patentable?

  • First and foremost, the invention must be novel, which implies that it cannot already be in use. The Patent Law lists non-patentable subject matter in Sections 3 and 4 of the Patent Law.
  • Second, the invention must be non-obvious, which means that it must significantly improve on the prior invention; a simple shift in technique will not grant the inventor the right to a patent.
  • Thirdly, the invention must be beneficial in a bona fide manner, which requires that it not only be employed in lawful activities but also benefit society as a whole. All the basic tests apply to all the different types of patent applications (which will be discussed in detail further)

Protect Your Innovation: A Comprehensive Guide to the Different Types of Patent Applications Filed in India

What are the different types of patent applications filed in India?

Seven types of patent applications can be filed in India. These are – 

1) Convention Application-  Convention Applications are that type of patent applications that are submitted to the Patent Office that claim a priority date based on applications that are substantially similar to or identical to those submitted in one or more of the convention countries.

To obtain convention status, an applicant must apply to the Indian Patent Office within 12 months of the date on which a similar application or the same was initially filed in the convention country.

2) Provisional Application-  Provisional Patent Application is the type of patent application that is used when an invention is still being tested and not finalized; a provisional application is a form of temporary Application that is submitted. Provisional Application attracts various advantages to the inventor. Some of them are listed below-

  • The applicant is given a year to develop the idea and assess its market viability thoroughly
  • Aids in establishing specific rights of precedence over innovation
  • The application gives the applicant the right to label their items as “patent pending.”
  • The cost of preparing and submitting the Provisional Application is lower
  • The applicant has a 12-month window in which to submit international applications and assert priority

3) Non-Provisional Application- A Non-Provisional or Regular Patent Application is a type of patent application that is submitted to the Patent Office without claiming any priority dates from applications made in convention countries or referring to any other applications already in the Patent Office’s processing queue.

An ordinary application is a type of patent application that inventors frequently file. It should include a thorough specification and all relevant claims for the invention. 

4) Patent of Addition – A patent of Addition is a type of patent application in which an applicant feels that he or she has discovered an invention that is only a slight improvement over an earlier invention for which they have already applied or obtained a patent. If the new invention does not contain a significant number of inventive steps, the applicant may choose to pursue a patent of addition.

During the duration of the primary Patent, there is no need to pay a separate renewal fee for the Patent of Addition, and both Patents expire simultaneously. The date on which the Patent Office receives the application for a Patent of Addition shall be used as the date of filing.

5) Divisional Application– It is that type of patent application when an applicant submits an application that includes claims for multiple inventions; the applicant may partition the patent application into two or more applications, as appropriate for each of the many inventions, at the applicant’s discretion or in response to an official objection.

Divisional Applications are those applications that have been split out from the main or parent applications. The priority date will be the same for all divisional applications as stated by the parent application (Ante-dating).

6) PCT International Application- A PCT application is a type of patent application that can be approved in up to 142 nations and is governed by the PCT (Patent Cooperation Treaty). There are three ways in which an Indian can file a PCT application- 

Submitting the application to the receiving office, i.e., the Indian Patent Office (IPO)

After receiving the overseas filing permit from the Indian Patent Office (IPO), applying directly to the International Bureau (IB) of the World Intellectual Property Organization (WIPO)

After six weeks and within 12 months of filing the application in India, the applicant may submit it to the International Bureau IB of the World Intellectual Property Organization (WIPO)

7) PCT National Phase Application – A PCT National Phase Application is a type of patent application in which an applicant must submit the national phase application in India within 31 months of the priority date or the international filing date, whichever is sooner, where an international application is formed and made in accordance with the PCT designating India.

People Also Read: Procedure for Filing of Provisional Patent in India

Maximize Your Patent Protection: Talk to a an Expert and Understand the Different Types of Patent Applications Filed in India


There are various ways to safeguard your brand-new, original idea in India from any type of infringement by a third party. This patent protection is accessible not just in India but also in other nations throughout the world. The inventor just has to file the patent application out of the different types of patent applications that are available. 

Therefore, anyone submitting a patent application in India must be aware of the fundamental prerequisites for submitting different types of patent applications in India. The patent applicant should always be mindful of the many Indian patent applications and appropriately submit their Application to the Indian Patent Office.

For the purpose of carrying out the process of applying for various forms of patent application for registration in India, the applicant should always seek the advice of a business lawyer.

Frequently Asked Questions

Q1. What is a Patent?

Ans1. A Patent is a government-granted right that prevents others from making, using, selling, or importing your invention for a set period.

Q2. What are the requirements for a patentable invention?

Ans2. An invention must be:

  • Novel (new and not already in use)
  • Non-obvious (significantly improve on existing inventions)
  • Industrially Applicable (useful in industry)

Q3. What are some non-patentable inventions in India?

Ans3. Sections 3 and 4 of the Patent Law list non-patentable inventions, such as discoveries, scientific principles, and frivolous inventions.

Q4. What are the different types of Patent Applications in India?

Ans4. There are seven main types:

  1. Convention Application: Claims priority from a similar application filed in another country.
  2. Provisional Application: For inventions under development, providing a filing date and time to develop the idea further.
  3. Non-Provisional Application: A complete application with detailed specifications and claims for the invention.
  4. Patent of Addition: For minor improvements on an existing patented invention.
  5. Divisional Application: Splitting a multi-invention application into separate applications.
  6. PCT International Application: Seeks patent protection in multiple countries through the PCT.
  7. PCT National Phase Application: Entering the national patent phase in India after a PCT application.

Q5. What are the advantages of a Provisional Application?

Ans5. Advantages include:

  • Time to develop the invention further (1 year)
  • Establish priority over the invention
  • Label inventions as “patent pending”
  • Lower filing cost
  • Time to file international applications claiming priority

Q6. What is a Non-Provisional Application?

Ans6. A complete application with all details and claims for the invention, typically used for most patents.

Q7. When would you use a Patent of Addition?

Ans8. You might use a Patent of Addition for a minor improvement on an existing patented invention you already own.

Q8. What is a Divisional Application?

Ans8. If your initial application covers multiple inventions, you can divide it into separate Divisional Applications.

Q9. How can I file a PCT International Application?

Ans9. You can file a PCT application through the Indian Patent Office, directly to the International Bureau, or after obtaining a filing permit from India.

Q10. What is the deadline for a PCT National Phase Application in India?

Ans10. You must submit the National Phase Application within 31 months of the priority date or international filing date (whichever is earlier).

Protecting your invention is required. To know more about the process of registering the patent get online advice.

Adv. Rupa K.N

Adv. Rupa K.N


5 | 277+ User Reviews

Advocate Rupa K.N, with over 24 years of independent practice, specialises in providing legal expertise, advice and guidance to a broad range of customers. Having been practising law independently for several years after doing her B.A. LLB from Bangalore University and PGDM from the National Institute of Personnel Management.

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