Every provision page on this site carries a worked example set in India — a founder in Coimbatore, a lab at a state university, an MSME that let a renewal slip. These are the ones people read most. All scenarios are fictional.
Ananya Rao's company, Sarvin Life Sciences in Hyderabad, develops a new crystalline salt of a medicine that has been on the market for years. The salt is stable, easier to store in Indian humidity, and genuinely new in the literature. The team files a patent application on the salt form. The first examination report raises Section 3(d): a…
Kestrel Robotics Pvt Ltd files an Indian application for a warehouse navigation system and files Form 3 on time, listing a single corresponding United States application. Eighteen months later the company files in Europe and Japan, using a foreign firm engaged directly by its investors. Nobody tells the Indian agent. When the Indian appli…
A Coimbatore auto components maker, Velavan Precision Pvt Ltd, files an Indian application for a lightweight brake bracket. The company relies on an agent for filing but manages renewals and follow-up in a spreadsheet maintained by a manager who leaves the company a year later. The application is published at the eighteen-month point and …
Marudhar Agritech Pvt Ltd, Jodhpur, published an application claiming a seed coating that improved germination in saline soil. A rival, Deccan Seeds, spotted it and pulled together three items: a state agricultural university bulletin from four years earlier, a dated invoice showing the same coating sold to farmers in Bhuj before the prio…
Nirvaha Photonics Pvt Ltd is the Bengaluru research unit of a group headquartered in California. Two engineers based in Bengaluru invent a method of stabilising an optical modulator. Following group practice, the parent files a United States provisional application naming both engineers as inventors. No Indian application exists, and no r…
Sundara Fine Chemicals Pvt Ltd of Vadodara holds an Indian patent on a process for making a speciality polymer additive. A Chennai trading house begins importing the same additive from a factory in another country that uses the identical process. The trading house argues it has made nothing in India. Section 48 answers that: for a process…
Suryagrid Energy Pvt Ltd files a complete specification for a solar inverter control method in March 2016 and the patent is granted in August 2021. The founders tell an investor the patent runs to 2041, twenty years from grant. It does not. The term runs twenty years from the March 2016 filing date, so it ends in March 2036, and about fiv…
Sundara Fine Chemicals Pvt Ltd sues a Kolkata formulator for infringing its patent on a stabilised herbicide blend. The formulator does not simply deny infringement. It files a counterclaim for revocation under Section 64, raising three grounds. First, a foreign family member of the same invention had been prosecuted abroad and the detail…
Marudhar Ceramics Pvt Ltd of Jaipur files an application for a kiln liner and requests examination in good time on Form 18. The first examination report arrives in March and raises three objections: one prior art citation against novelty, an inventive step objection combining two documents, and a clarity objection on claim 1. The firm's a…
Kestrel Robotics Pvt Ltd applies for a patent on a loom attachment that reduces yarn breakage. The application is published, and a request for examination is filed. Sundaram Textiles, a Coimbatore mill that has used a very similar attachment for years, learns of the publication from its trade association. Rather than wait for a grant and …
Kestrel Robotics Pvt Ltd filed a patent application for a warehouse navigation system in March 2019. The patent is granted in September 2025. The founders celebrate, then their patent agent explains the arithmetic. Because renewal fees run from the third year of the patent and the date of the patent is the March 2019 filing date, the fees…
Meghna Instruments Pvt Ltd, a Pune company making low-cost water-testing probes, is granted a patent in November 2023. That falls in financial year 2023-24. Under the cycle introduced in 2024, its first reporting block is the three financial years beginning immediately afterwards: 2024-25, 2025-26 and 2026-27. The block ends on 31 March 2…
Suraksha Diagnostics Pvt Ltd, a four-person Hyderabad startup, runs its patent docket on a single spreadsheet kept by its head of R and D. In August she is hospitalised after an accident and is away for eleven weeks. During that time a date prescribed by the Rules passes unnoticed, and no one else in the company knows the file exists. Whe…
Devansh Kulkarni files a provisional specification in March for a low-cost soil moisture probe designed for small farms in Maharashtra. The provisional describes the sensing element, the housing and the calibration method he has already built and tested. Over the next nine months his team improves the probe with a wireless module and a ne…
Sarvin Life Sciences drafts a specification for a fermentation process that produces an enzyme used in leather processing. The description sets out a workable protocol using a common bacterial strain and generic culture conditions. The team, however, has quietly kept out its real advance, a specific strain isolated from a Chennai tannery …
Anvaya Biosciences Pvt Ltd in Hyderabad files an Indian application and then, over the next eighteen months, files corresponding applications in several other countries as investors push for international coverage. The Indian Form 3 filed at the outset lists only the two foreign filings that existed at the time. Nobody updates it as the p…
Sundara Weavetech files one complete specification covering a new anti-static yarn coating, the method of applying it in a continuous line, and a coated yarn product. The examiner objects that the claims cover more than one invention and asks the company to restrict them. The company keeps the coating composition claims in the parent appl…
Kestrel Robotics Pvt Ltd changes its patent agent during a funding round. In the handover, the renewal instruction for one Indian patent is never passed on. The renewal fee is missed, the six-month extension window passes unnoticed, and the patent ceases to have effect in June. Eleven months later an investor's diligence team flags the la…
