2011 Patent Quality Inventor Study

The U.S. has transitioned to an innovation based economy with intellectual property (IP) taking center stage. Eighty percent (80%) of company value is comprised of intangible assets, according to the Ocean Tomo Intangible Asset Market Value Study.

One of the largest components of value, corporate intangibles can often be traced directly to the women and men responsible – the inventors holding the most significant patents.

In order to recognize significant individual contributors, Ocean Tomo, the leading intellectual capital merchant banc™ firm, undertook a study of top patent inventors relative to the quality of their 2011 issued and in-force patents.

The Ocean Tomo Patent Quality Inventor Study ranks the top three inventors within four technology sectors: wireless, life science, industrials and semiconductors. 

Requiring only a minimum of five issued patents, the Patent Quality Inventor Study ranking is based upon the average patent IPQ® score for each inventor’s 2011 issued and active U.S. patents within noted U.S. Patent Office Classifications. Ocean Tomo IPQ scores objectively rate patent assets based on a proven statistical methodology, with a median score being 100.

In Wireless, the top rated inventor with 9 patents in USPC 370 is Joseph J. Kubler. These patents have an average IPQ score of 195.7, which puts his patents in the top 0.53% of active U.S. utility patents.

In Life Science, Craig A. Weaver is the top rated inventor. The 5 patents that fall within USPC 435 have an average IPQ score of 223.1. This average lands his patents in the top .07% of all active U.S. utility patents.

In Industrials, David R. Hall was the top inventor with 7 patents in USPC 324 and 060. Having an average IPQ score of 138.1 places those 7 patents in the top 9.86% of all active U.S. utility patents.

In Semiconductors, Charles W. C. Lin is the top inventor with 10 patents in USPC 438 and 257. With an average IPQ score of 189.4, his 10 patents rank among the top 2.32% of all active U.S. utility patents.

Please contact Ocean Tomo to obtain Complete report of the Patent Quality Inventor Study.

By requesting a copy of the report, I agree to the Terms & Conditions.

The study was performed using the Ocean Tomo PatentRatings® system the first market-validated software platform for objectively assessing patent quality, relative value, and competitive trends for patents, patent portfolios, companies, and technology sectors. The Ocean Tomo PatentRatings® System uses a patented method of patent quality valuation, (USP 6,556,992 7,657,476 and 7,716,226 and other US and foreign patents pending) that is statistically based calculating the relative quality of all patents issued by the U.S. Patent Office since 1976 using more than 50 independent and objective factors that are correlated to patent value.


The top three inventors featured in this study were identified using the following process:

  • Starting with a list of the first or lead named inventors issued 5 or more patents from the USPTO in 2010 within selected technology areas as defined by the US Patent Classification (USPC) System.
    • Life Science defined by USPC 435 - Chemistry: molecular biology and microbiology and USPC 436 - Chemistry: analytical and immunological testing
    • Semiconductors: USPC 438 - Semiconductor device manufacturing: process, USPC 257 - Active solid-state devices (e.g., transistors, solid-state diodes) and USPC 365 - Static information storage and retrieval
    • Wireless: USPC 455 - Telecommunications, USPC 370 - Multiplex communications and USPC 375 - Pulse or digital communication
    • Industrials: USPC 324 - Electricity: measuring and testing, USPC 318 - Electricity: motive power systems and USPC 060- Power plants)
  • The inventors were ranked by the average IPQ® score of their in-force patents within the noted USPCs to determine the top 3 inventors within the technology areas.


All 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 IPQ scores and "fair market value," royalty rates, validity, enforceability or infringement and IPQ 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 2001-2010 PatentRatings, LLC. Copyright 2011 Ocean Tomo, LLC. All rights reserved.


Ocean Tomo PatentRatings Legal