Crain’s Chicago Business asked Ocean Tomo to identify the leading Illinois companies for patent invention in 2013. The study, which ranks companies and institutions in the state of Illinois with three of more issued patents in 2013, was performed using the Ocean Tomo Ratings™ system and appears in the March 30th – April 5th issue of Crain’s Chicago Business.

To coincide with this publication, we have published an expanded version of this Index. In this version, we identify the average OTR score and number of patents within the top three United States Patent Classes for each of the top 20 companies. Below is a preview of the expanded study.

You can request the complete report for free here.


Data Source: Ocean Tomo Ratings system 


Data accessible through was prepared by Ocean Tomo based on proprietary algorithms and other statistical information provided by PatentRatings, LLC. All scores, ratings and ranks are statistical in nature and are based on publicly available data. They are not based on, nor do they consider any legal opinions or other professional opinions, advice or other information (public or otherwise) that may have bearing on the subject matter of the analysis. No direct statistical correlation has been established between OTR™ scores and "fair market value," royalty rates, validity, enforceability or infringement and OTR scores should not be relied upon to prove or establish the existence or probability of such facts. No direct statistical correlation has been established between Relevance scores and patentability or materiality, and Relevance scores should not be relied upon to prove, establish or support any opinion of the materiality or patentability of one patent in view of another. Some of the information and services provided by this website may be covered by one or more of the following U.S. patents: 6,556,992; 7,657,476; 7,716,226; and other patents pending. Copyright 2001-2013 PatentRatings, LLC. Copyright 2011-2013 Ocean Tomo, LLC. All rights reserved.