CS Professional · Intellectual Property Rights - Law and Practice
Patent Documentation, Examination and Infringement: Filing to Court Suit
This chapter follows a patent from filing to a court suit. You learn the application and specification, publication, the request for examination (section 11B), examination by an examiner (section 12), opposition and grant, then infringement, remedies and defences (section 107). Answer each problem as provision, facts, conclusion.
What this chapter covers
This chapter traces the life of a patent in order. It starts with the documents you file, moves through publication and examination, ends with the grant, and then covers what happens when someone infringes the patent. Think of it as one timeline: file, publish, request examination, get examined, face opposition, get granted, enforce.
Two sections of the Patents Act, 1970 carry the examination stage. Under section 11B, no application is examined unless the applicant or any other interested person makes a request in the prescribed manner within the prescribed period. If no request is made in time, the application is treated as withdrawn. Under section 12, once a request is made, the Controller refers the application to an examiner, who reports on compliance with the Act and rules, any lawful ground of objection, and the result of investigations under section 13.
The second half deals with enforcement. Section 107 lets a defendant use every ground of revocation under section 64, and the conditions in section 47 for certain acts, as defences. Sections 106 and 111 limit threats and damages. This chapter links to the earlier parts of the paper on patentability and rights, and to the later parts on other IP. In the exam, it is tested through drafting and case-based questions.
Papers in this subject are written and case-based, and this chapter lends itself to problem questions: a timeline with a missed deadline, an innocent infringer, a threat letter, or a defendant raising revocation grounds. Each can be answered by stating the provision, applying it to the facts and concluding. The sections are short and precise, so careful study of exact wording earns marks that vague answers lose. It also supports practical drafting, which the paper values.
Patent Documentation, Examination and Infringement: topics in the order to study them
- 1Patent Application and Specification DocumentsStart with what is filed, because every later stage works on these documents.
- 2Publication of Patent ApplicationPublication is the next step in the timeline and sets up examination.
- 3Request for Examination under Section 11BNothing is examined without a request, and a missed request means the application is treated as withdrawn.
- 4Examination of Application under Section 12This follows the request and covers the examiner's report and the matters it addresses.
- 5Opposition, Grant and Sealing of PatentsYou can only understand opposition and grant after you know what examination decides.
- 6Patent Infringement and RemediesEnforcement makes sense once you know what a granted patent protects.
- 7Defences in Suit for Infringement under Section 107Defences come last because they answer the infringement claim and use revocation grounds you studied earlier.
How to prepare Patent Documentation, Examination and Infringement
Learn this chapter as a timeline first, then as a set of provisions, then practise problem answers.
- Draw one timeline from filing to suit and mark each stage with its section.
- Read sections 11B and 12 slowly. Note who may request, the effect of no request, and the matters in the examiner's report.
- Learn the section 11B proviso: the applicant may withdraw before grant, and where a secrecy direction is issued under section 35, the request period runs from revocation of that direction.
- Study amendment and correction: section 57 for amendments before the Controller, and section 78 for clerical errors. Note when notice and opposition apply.
- For infringement, list the remedies and the limits: section 111 on damages, section 106 on groundless threats, and section 107 on defences.
- Write three or four short problem answers in the format provision, facts, conclusion, and check them against the Act's wording.
- Revise using the quick points below and re-read the exact conditions in each section.
Common mistakes in Patent Documentation, Examination and Infringement
Saying the applicant alone can request examination under section 11B.
Fix: Write that the applicant or any other interested person may make the request, in the prescribed manner and within the prescribed period.
Stating specific time limits without being sure of them.
Fix: Say 'within the prescribed period' unless you are certain of the rule, and state the consequence correctly.
Treating a patent notice on a product as proof of awareness under section 111.
Fix: Remember the explanation: the word counts only if the patent number accompanies it.
Believing that a lack of awareness stops all relief in an infringement suit.
Fix: State that damages or an account of profits may be refused, but the court's power to grant an injunction is unaffected.
Treating any letter mentioning a patent as a groundless threat under section 106.
Fix: Apply the explanation: mere notification of the existence of a patent is not a threat. Look for a threat of infringement proceedings.
Giving answers as a list of facts with no conclusion.
Fix: Use the structure of provision, analysis of the facts, and a clear conclusion in every case-based answer.
Last-day revision: Patent Documentation, Examination and Infringement
- Section 11B(1): no examination unless a request is made in the prescribed manner and period, by the applicant or any other interested person.
- Section 11B(4): no request in time means the application is treated as withdrawn.
- Section 11B proviso: the applicant may withdraw at any time before grant.
- Where a secrecy direction under section 35 applies, the request may be made within the prescribed period from its revocation.
- Section 12: the Controller refers the application to an examiner after a request is made.
- The examiner reports on compliance, lawful grounds of objection, section 13 investigations and other prescribed matters.
- Section 57: the Controller will not decide an amendment application while an infringement suit or a High Court revocation proceeding is pending.
- Section 78: the Controller may correct clerical errors on request or on his own, after notice and a hearing in the latter case.
- Section 106: a person threatened with infringement proceedings may seek a declaration, an injunction and damages; merely notifying that a patent exists is not a threat.
- Section 107(1): every ground of revocation under section 64 is available as a defence.
- Section 107(2): conditions in section 47 are a defence for making, using, importing or distributing certain articles, processes or medicines.
- Section 111: no damages or account of profits against a defendant who proves he was unaware, with no reasonable grounds to believe the patent existed; the court can still grant an injunction.
Patent Documentation, Examination and Infringement practice questions
- Veda Tools Pvt Ltd sells a patented drill bit in Pune. Its packaging carries only the word "Patented" with no patent number. Karan Engineeri…
- Rao Industries is sued for infringing a patent for a machine. It pleads that its making and use of the machine was in accordance with the co…
- Dhanush Chemicals holds a patent whose specification was amended by way of disclaimer after publication. It sues Eshan Ltd for use of the in…
- Nisha Enterprises, an exclusive licensee, sues Omkar Ltd for infringement committed after the date of its licence and does not join the pate…
- Rohit Engineering filed a parent application, and the Controller objected that its claims relate to more than one invention. Rohit files a f…
- Meghna Pharma Ltd filed a patent application in India on 10 March. The application was published on 15 October of the following year. A riva…
- Meera Textiles Pvt Ltd files a patent application in Chennai for a new dyeing process. Two years later she realises nobody has asked for exa…
- Kavita Engineering's complete specification, before grant, claims a pump with a ceramic impeller. It seeks to amend it to also claim a pump …
Patent Documentation, Examination and Infringement in other exams
The same ground in other exams, if you are preparing for more than one or want another angle on it.
Patent Documentation, Examination and Infringement: frequently asked questions
What happens if no request for examination is made under section 11B?
If the applicant or any other interested person does not make a request within the prescribed period, the application is treated as withdrawn by the applicant. Where a secrecy direction under section 35 has been issued, the request may be made within the prescribed period from the date it is revoked.
Who can request examination of a patent application?
The applicant or any other interested person can make the request. It must be made in the prescribed manner and within the prescribed period.
What does the examiner report on under section 12?
The examiner reports on whether the application and related documents comply with the Act and rules, whether there is any lawful ground of objection to grant, the result of investigations under section 13, and any other prescribed matter.
What defences are available in a patent infringement suit?
Under section 107, every ground on which the patent may be revoked under section 64 is available as a defence. For certain acts involving machines, processes, medicines or drugs, acting within the conditions in section 47 is also a defence.
Can a court award damages against an innocent infringer?
Under section 111, damages or an account of profits are not granted against a defendant who proves he was unaware and had no reasonable grounds to believe the patent existed. The court can still grant an injunction.