Artificial intelligence-based prior art document identification system

A document identification system for identifying a prior art reference using artificial intelligence comprising:

• one or more computer processors;
• and
• a computer readable storage medium storing program instructions configured for execution by the one or more computer processors in order to cause the computing system to:
• retrieve, from a document database, a plurality of prior art documents;
• process the prior art documents in the plurality of prior art documents to identify a plurality of n-grams and a weight associated with each n-gram in the plurality of n-grams;
• receive, from a user, a first patent document;
• process a claims section of the first patent document to identify a second plurality of n-grams;
• rank each n-gram in the second plurality of n-grams based on the identified weights associated with each n-gram in the plurality of n-grams;
• identify a first set of n-grams in the second plurality of n-grams that are ranked above a threshold value;
• identify a first set of prior art documents in the plurality of prior art documents based on the first set of n-grams in the second plurality of n-grams;
• rank the first set of prior art documents based on a similarity between the first prior art document and the respective prior art document in the first set of prior art documents;
• and
• display, in a user interface, prior art documents in the first set of prior art documents that are ranked above a second threshold value.

Non-transitory, computer-readable storage media comprising computer-executable instructions for identifying a prior art reference using artificial intelligence, wherein the computer-executable instructions, when executed by a computer system, cause the computer system to:

• retrieve, from a document database, a plurality of prior art documents;
• process the prior art documents in the plurality of prior art documents to identify a plurality of n-grams and a weight associated with each n-gram in the plurality of n-grams;
• receive, from a user, a first patent document;
• process a claims section of the first patent document to identify a second plurality of n-grams;
• rank each n-gram in the second plurality of n-grams based on the identified weights associated with each n-gram in the plurality of n-grams;
• identify a first set of n-grams in the second plurality of n-grams that are ranked above a threshold value;
• identify a first set of prior art documents in the plurality of prior art documents based on the first set of n-grams in the second plurality of n-grams;
• rank the first set of prior art documents based on a similarity between the first prior art document and the respective prior art document in the first set of prior art documents;
• and
• display, in a user interface, prior art documents in the first set of prior art documents that are ranked above a second threshold value.