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This page is written for the USPTO Public Patent Search because each patent searching platform (such as Google Patents, and Escapenet) will have operators, which are slightly different.
Proximity operators are a type of search operator used to help make searches more specific to certain scenarios. The Public Patent Search ultimately uses eight different types of proximity operators: ADJ, ADJ[n], NEAR, NEAR[n], WITH, WITH[n], SAME, and SAME[n].
For instance there is a need to search for a utility patent for a chemical diffuser. These search queries can be made:
Note: this keyword search does not use proximity operators, although proximity operators are a very effective tool for patent searches and legal research in general and may not be well known outside legal research
For instance there is a need to search for a utility patent for a process of separating chemicals within a mixture of the chemicals all of which are petroleum based and the process takes place at or under 5 degree Celsius.
Note: this keyword search contains proximity operators
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