Tag: Indian Patent Office

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. ......

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. ......

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. ......

Applying for a patent is a race against time to secure the earliest priority date (i.e., the date of the first filing of a patent application). As a result, patent applications are often filed with accompanying data that do not always capture all the facets of the invention. In such cases, using post-filing data to support the applications is often the only course available. ......

The phrase “at least one of” is commonly used in patent claims, but its interpretation is subjective and has led to some controversy. The issue that arises is this: when the phrase in its entirety is “at least one of A, B and C”, should it be understood as at least one of A AND at least one of B AND at least one of C, or should it be understood as at least one of A OR B OR C. ......