Even if you have a patent in India, it won’t do you any good in another country. In order to protect an invention in multiple countries, you need to file an application in that jurisdiction. Basically, patents are territorial rights.
To protect an invention in multiple countries simultaneously, you can choose any one of the following options.
Go for the Direct route, i.e. file separate applications in every country simultaneously. However, this process is tedious, time consuming, and expensive.
PCT Route. Helps to seek patent protection for an invention simultaneously in a large number of countries. File a single “international” patent application instead of filing several separate national or regional patent applications
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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