CS Professional · Intellectual Property Rights - Law and Practice

Indian Patent Law and its Developments for CS Professional

Indian patent law is the Patents Act, 1970, which grants a time-limited exclusive right for an invention. This chapter covers how the law evolved, what can be patented, how applications are filed and granted, convention priority, patent agents, savings on repeal, and compulsory licences. Solve questions by stating the provision, applying the facts, then concluding.

What this chapter covers

This chapter is the base of Elective 4.3, Intellectual Property Rights - Law and Practice. It starts with how Indian patent law developed, moves to what is patentable, and then follows an application from filing to grant. It then covers special topics: convention applications, patent agents, the repeal of the 1911 Act and compulsory licensing.

The chapter rests on the Patents Act, 1970. Several sections are short and precise. Section 135 gives the twelve-month priority rule. Section 136 sets what a convention application must contain. Sections 123, 126, 127, 129 and 132 deal with patent agents. Section 162 handles repeal and savings. Sections 90 and 92 deal with compulsory licences. You must know the exact conditions in each.

The rest of the paper builds on this chapter. Later topics such as infringement, remedies, international treaties and other IP rights assume you know who can file, when priority applies and who can act before the Controller. Because the paper is written and case-based, and electives are open book, you must still know where to look and how to apply the text quickly.

Questions in this paper are scenario-based, and many turn on a precise condition: a twelve-month window, a qualification for registration, a fine amount or a term of a licence. If you know these sections, you can write a clean answer of provision, analysis and conclusion. Since the paper is open book, marks go to the student who finds the right section fast and applies it to the facts, not to the one who copies text. This chapter also supports later chapters, so time spent here pays back across the paper.

Indian Patent Law and its Developments: topics in the order to study them

1Evolution of Indian Patent LawIt gives the timeline and context, so the later sections make sense as parts of one story.
2Patentable Subject Matter and ConditionsYou must know what qualifies as a patentable invention before studying how to apply for one.
3Patent Application and Grant ProcedureThis is the core process. Convention filings and agents are variations on it.
4Convention Applications under Section 136It builds on the basic application and adds the twelve-month priority rule of section 135 and the content rules of section 136.
5Patent Agents and Restrictions on PracticeOnce you know the filing process, you can see who may act in it and what the Act forbids.
6Repeal and Savings under Section 162It is short and legal in nature, and makes sense once you know the 1970 Act's structure.
7Rights, Infringement and Compulsory LicensingIt comes last because it uses everything before it: the grant, the patentee's rights and the limits on those rights.

How to prepare Indian Patent Law and its Developments

Treat this chapter as a set of exact rules with a short history. Learn the rule, then practise applying it to facts.

Read the history once and make a short timeline. Do not memorise dates you cannot place in the story.
Make a list of the conditions for patentability and the exclusions, and test each against a simple example invention.
Draw the application flow from filing to grant on one page, and mark where a patent agent or the applicant may act.
Learn section 135 and section 136 together. Note the twelve-month period, the contents of a convention application, and the bar on post-dating beyond the date the application could have been made.
Make a table for patent agents: qualifications in section 126 (citizen, 21 years, science, engineering or technology degree or equivalent, examination or ten years as examiner or Controller, fee), rights in section 127, restrictions in section 129, penalty in section 123 and savings in section 132.
Study compulsory licensing with sections 90 and 92 side by side: ordinary terms under section 90, and the national emergency, extreme urgency and public non-commercial use route under section 92.
Write three or four case-style answers using provision, analysis and conclusion. Time yourself, and use the open book only to confirm section wording.

Common mistakes in Indian Patent Law and its Developments

Counting the twelve-month priority period from the Indian filing date or from the latest foreign application.
Fix: Count from the date of the basic application, or the earliest one where there are several convention countries.
Saying a company can be registered or described as a patent agent.
Fix: Remember section 129(2): no company or body corporate may practise or hold itself out as patent agents.
Writing that only a registered patent agent can ever appear before the Controller.
Fix: Add the savings: the applicant may draft and act before the Controller, and an advocate may take part in hearings for a party.
Treating compulsory licences under section 92 as following the same procedure as section 90 in all cases.
Fix: Note that section 92 applies on a Central Government notification. Section 92(2) applies sections 83, 87, 88, 89 and 90 to section 92 licences. But under section 92(3), where the Controller is satisfied that it is necessary in a national emergency, extreme urgency or public non-commercial use, he shall not apply any procedure specified in section 87. He must inform the patentee as soon as practicable.
Giving a conclusion without applying the facts to the section.
Fix: Write provision, then link each fact to a condition, then conclude. Even in an open book exam, do not copy the text without analysis.
Ignoring the effect of repeal on pending proceedings.
Fix: Remember section 162(5) and state clearly that pending suits and revocation proceedings could continue as if the 1970 Act had not been passed.

Last-day revision: Indian Patent Law and its Developments

Section 135: the priority date of a claim based on matter disclosed in the basic application is the basic application date, where the applicant, or their legal representative or assignee, files in India within twelve months of it.
Where several convention countries are involved, the twelve months run from the earliest application.
Section 135(2): one convention application may cover cognate inventions or modifications within twelve months of the earliest application.
Section 136(1): a convention application needs a complete specification, the date and country of the first application, and a statement of no earlier application.
Section 136(3): a convention application cannot be post-dated under section 17(1) beyond the date it could have been made.
Section 126: a patent agent must be an Indian citizen, at least 21, with a science, engineering or technology degree or equivalent, and must pay the fee. In addition, the person must either pass the qualifying examination or have served a total of at least ten years as an examiner or discharging the Controller's functions under section 73, having ceased to hold that capacity when applying.
Section 127: a registered agent may practise before the Controller and prepare documents for proceedings.
Section 129: only a registered person may practise as a patent agent. A company or body corporate cannot.
Section 123: fine up to ₹1,00,000 for a first offence and up to ₹5,00,000 for a second or later offence.
Section 132: an applicant may draft a specification and act before the Controller, and an advocate may take part in hearings.
Section 162(5): suits for infringement and revocation proceedings pending at commencement of the Act may continue as if the Act had not been passed.
Section 90: the Controller shall endeavour to secure that a compulsory licence is non-exclusive, that the licensee's right is non-assignable, and that the licence is for the balance term of the patent unless a shorter term is consistent with public interest. Section 92 applies on a government notification.

Indian Patent Law and its Developments practice questions

Indian Patent Law and its Developments in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

CS ExecutiveLaw relating to Patents

Indian Patent Law and its Developments: frequently asked questions

Which sections of the Patents Act matter most in this chapter?

Sections 135 and 136 on convention applications, sections 123, 126, 127, 129 and 132 on patent agents, section 162 on repeal and savings, and sections 90 and 92 on compulsory licences. Learn their exact conditions.

How long is the priority period for a convention application?

Twelve months from the date of the basic application, under section 135. If applications were made in two or more convention countries, count from the earliest.

Can an applicant file a patent without hiring a patent agent?

Yes. Section 132 says nothing in the Chapter prohibits an applicant from drafting a specification or appearing or acting before the Controller.

Is Elective 4.3 an open book paper?

Yes, elective papers are open book. You still need to know where each section is and how to apply it to the facts under time pressure.