Intellectual Property

Under Indian patent law, various types of patent applications may be filed at the Indian Patent Office (“IPO”). This note discusses the different types of applications accepted at the IPO, and specific considerations relating to each type. ......

Patent applicants are sometimes unsure of whether working models or invention samples must be submitted when filing for an Indian patent; or, if a model or a sample is indeed required, the form and manner of such submissions. Under Indian law, there is no requirement to either mandatorily or voluntarily submit models or samples along with an application; such submissions are necessary only upon a request made by the Controller. ......

The official fee for a patent application in India is calculated on the basis of the following factors: • the type of applicant, • number of priorities (additional fee for each priority above 1), • the total number of pages (additional fee for each page above 30) and • the number of claims in the application (additional fee for each claim above 10). ... ...

A patent application can be filed either alone or jointly, by any person claiming to be the true and first inventor of the invention, or by the assignee of such person, or the legal representative of a deceased person who immediately before their death was entitled to make such an application. ......

Reference signs are used to improve the intelligibility of claims. Sometimes also known as “reference numerals”, they help understand claims in light of the specification and drawings on record. If a patent application contains drawings, the claims can be clarified by establishing a connection between the features mentioned in the claims, corresponding to reference signs in the drawings. ......

Patents are granted for inventions that are novel and involve an inventive step. Any information or material that is publicly available or published before the filing of a patent application is known as “prior art” and this forms the basis on which novelty and inventive step is determined. ......

The Indian Patent Office is responsible for administering the Indian law of patents, and its roles include patent administration, patent duration, and patent renewal, among other things. There are four patent offices in India, located in different cities, i.e., Chennai (in southern India), Delhi (in northern India), Kolkata (in eastern India), and Mumbai (in western India). In geographical terms, these four offices cover the length and breadth of the entire country. ......

Inventions that fall within, or overlap with, disclosures in the prior art are called “selection inventions”. Generally, selection inventions involve the selection of one or more specific embodiments, such as individual elements, subsets, or sub-ranges, within a larger known set or range disclosed in the prior art. This raises critical questions around how the novelty and inventive step of selection patents should be judged. ......

From filing a patent to its eventual grant, there are various stages that a patent application goes through in India. Patent filing is the primary step an inventor must initiate to protect their invention from being misused. Before a patent is granted, the Indian Patent Office (IPO) meticulously examines it, to ensure that the innovation sought to be patented is novel and involves an inventive step based on specific criteria. ......