Basically, any Indian native/resident can use the PCT route in India. Generally, major corporations, research institutions, and universities use the PCT Route in order to obtain international patent protection. Small and medium sized enterprises (SMEs) and individual inventors also seek protection through PCT. Also, a yearly list of the PCT filers is published in the PCT newsletter. This list is a testament of the fact that entities of varying sizes use the PCT route in India.
Hence, any Indian native/resident can file an international patent application under PCT. An application may comprise of several applicants. In those scenarios, only one of those applicants needs to fulfill the requirements.
Also, do make sure that you check out this free e-book: A Quick Guide to Patents. It deals with basics of patent procedures.
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