How can I find whether my invention in public domain already exists or not in India?

One can find that whether his invention in public domain exists or not. You can find whether the invention in public domain exists by performing out a prior art search. You can also go to the Indian Patent website and search for patents in the patent database. But generally, you should do a worldwide search to know if your idea is already patented in any other part of the world. It is because if it’s patented in any country, the patent will be treated as prior art. Also, look for non-patent literature such as research papers, journals, or anything else which describes your idea.

 

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