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Entrepreneurship: Patent Searching

This guide supports UCI’s innovation and entrepreneurship community by connecting users to relevant resources used to conduct research throughout the entrepreneurial process.

Search for Patents

Additional Databases for Engineering Patents

  • Monitor an invention’s influence by using the “Cited Patent Search” tool to find patents that cite a given patent or patents.
  • To find US companies who own the most patents: >> Patents [tab] >> Owners [left menu]
  • To find the top companies applying for the most patents: >> Patents [tab] >> Applicants [left menu]

Search Strategies & Tips

Classification Searching

Cooperative Patent Classification (CPC) is a hierarchical system that groups similar patents together (similar to NAICS codes used for grouping companies in the same industry). CPC facilitates searching for "like" patents, regardless of the terminology used to describe the invention. 

Example of CPC Scheme:
A46B 9/04 toothbrush bristles arrangement

Level CPC Code Description
Section A Human Necessities
Class A46 Brushware
Subclass A46B Brushes
Main Group A46B 9/00 Arrangement of bristles in the brush body
Subgroup A46B 9/04 ... for toothbrushes

Access Key

UCI – Authorized Affiliates
Access requires an active UCInetID and password.

Access is available to all users physically on the UCI campus.

Remote access is available to users with active UCInetID and password using the VPN.

Access is generally available to all users.


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