
Patent Prosecution: Protecting Your Rights
Filing an application is the start of a negotiation, not the end of the process. Between filing and grant, you must persuade the patent office that the invention is new, inventive and properly claimed, while keeping the claim scope that gives the patent its commercial value. After grant, the patent may still face opposition or revocation. We manage this whole phase, from the first examination report to grant and beyond.
What We Offer
Status tracking and reporting throughout prosecution.
Technical analysis of examination reports and cited prior art.
Responses to examination reports, with claim amendments and arguments.
Discussions with examiners, and representation at hearings before the Controller.
Written submissions after hearings.
Appeals against refusals and other adverse orders.
Pre-grant and post-grant oppositions, whether filing against a competitor or defending your application or patent.
Defence of granted patents in revocation proceedings.
Amendments after filing, and surrender of patents, with supporting statements and evidence.
Comment and analysis letters for clients and foreign counsel.
Our Approach
Analyse. We study each objection and every cited reference against your whole invention, not just the claims as filed.
Strategise. We decide which arguments to make and which amendments to offer, aiming for the broadest claims the prior art permits.
Engage. Where useful, we discuss the application with the examiner directly to narrow the issues before a formal response or hearing.
Report. You receive a clear account of each development, the options available and our recommendation.
Why Khurana & Khurana
Hearings handled by experienced practitioners. Our patent attorneys regularly appear before Controllers at the Indian Patent Office.
Both sides of oppositions. We file oppositions against competitors' applications and defend our clients against them, so we know how each side argues.
One team throughout. The team that drafted or filed the application usually prosecutes it, keeping the strategy consistent from filing to grant.
Patent Prosecution Timeline in India
Publication: 18 months from the priority or filing date, or earlier on request.
Request for examination: within 31 months of the priority or filing date. Expedited examination (Form 18A) is available to start-ups, small entities, female applicants, government bodies, institutions established by a Central or State Act, applicants who chose India as their PCT search or examination authority, and applicants under notified bilateral arrangements.
First examination report (FER): issued after the application is published and examination has been requested.
Response: within six months of the FER. This can be extended by up to three months on a request in Form 4. An application not put in order in time is treated as abandoned.
Hearing: if objections remain, the Controller must offer a hearing before refusing the application. Written submissions are due within 15 days of the hearing.
Pre-grant opposition: any person may oppose after publication and before grant. The applicant has two months to reply once notified.
Grant: the patent lasts 20 years from the filing date (for PCT national phase applications, from the international filing date), subject to annual renewal fees.
Post-grant opposition: any interested person may oppose within one year of publication of the grant.
Received an examination report or a hearing notice?
Indian response deadlines are strict, and a missed deadline means the application is treated as abandoned. Send us the report at info@khuranaandkhurana.com and we will set out your options.

Efficient and Reliable Patent Filing Services
Khurana & Khurana (K&K) delivers fast, efficient patent filing services for Indian and international clients, including corporates, inventors, and law firms. Known for swift filings and thorough reporting, K&K ensures deadlines are closely monitored and managed, providing clients with secure, timely filings worldwide.
TYPES OF PATENT APPLICATIONS
AT THE INDIAN PATENT OFFICE
Ordinary Application
First-time filing without priority claims; may include complete or provisional specifications.
Convention Application
Claims priority from applications filed in Paris Convention countries; must be filed within 12 months.
PCT International Application
Filed under the Patent Cooperation Treaty, either within 12 months of Indian filing or with a Foreign Filing License.
PCT National Phase Application
Enters the Indian National Phase within 31 months of priority or international filing date.

FILING REQUIREMENTS
1
Applicant & Inventor Info
Full name, address, and nationality.
4
Power of Attorney
Original signed document; can be submitted post-filing.
2
Complete Specification
Submit spec, claims, abstract, and drawings in English.
5
Proof of Right
Transfer of rights from inventor to applicant
(Form 1 or notarized deed); due within six months.
3
Priority Document Translation
Verified English version; can be filed later.
6
Required Forms
Applicable forms provided to clients for signature.
7
Foreign Application Details
Form 3 for corresponding foreign patents, due within six months; notify of any status changes within six months.
IMPORTANT DEADLINES FOR INDIAN PATENT FILING
Request for Examination
Must be filed within 48 months of the earliest date (Priority or Filing Date). Examination occurs after publication, typically within 19 months of the earliest date.
Form 3 Filing
Required within six months of any action (filing, publication, or examination) on corresponding applications in other countries.
Working of Invention Statement (Form 27)
Must be filed annually by patentees and licensees within three months after the end of each calendar year, detailing commercial use in India.
PATENT PROSECUTION OVERVIEW
Patent prosecution involves the interaction between an applicant and the patent office to defend the inventor's rights through negotiation, making it a high-impact process. K&K recognizes the value of patents and offers comprehensive support throughout this process, including:

Response Preparation
Analyzing the invention and prior arts to meet patentability criteria.

Examiner Discussions
Engaging in detailed conversations with patent examiners.

Hearing Strategy
Developing effective strategies for hearings before the Controller.
The First Examination Report (FER) is typically issued within 12 months of filing the Request for Examination, contingent upon the application being published in the Indian Patent Journal.
COMPREHENSIVE PATENT PROSECUTION SERVICES
Prior Art Analysis
Technical evaluation of cited prior arts.
Application Status Tracking
Regular updates and monitoring of developments.
Examination Report Review
Detailed analysis for strong response strategies.
Response Drafting
Crafting effective replies to examination reports.
Amendment Strategy
Strategic modifications to enhance patent application.
Opposition Handling
Managing and defending opposed patents.
Revocation Prevention
Protecting the granted patent from cancellation.
Comprehensive Patent Support
Full guidance through all prosecution stages.
PRACTICE CONTACTS
Partner and Patent Attorney – Software / Electronics / Mechanical Group
Tapan Shah
Partner and Patent Attorney – Pharmaceutical – Life Sciences Practice Group
Rajesh Jain
Director – Patents
Antony David
Associate Director – Pharmaceutical – Life Sciences Practice Group
Dhakshina Moorthy C
Associate Director – Pharmaceutical – Life Sciences Practice Group)
TS Sharat
Partner – Software/Electronics/Mechanical Group
