Trademarks = 1

Forward Citations = 137

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10 inventors (with patents filed for the assignee):

Bruce E Renslow (8 out of 10 patents)

Royal A Hanson (5 out of 9 patents)

Steven W Shaw (4 out of 4 patents)

4. Guillermo E Meneses (3 out of 5 patents)

5. William A Hanson (3 out of 3 patents)

6. Robson L Splane, Jr (2 out of 39 patents)

7. Jerome S Elkins (1 out of 1 patent)

8. Robinson C Russell (1 out of 1 patent)

9. Graham S Barr (1 out of 1 patent)

10. Sean M Montgomery (1 out of 2 patents)

11 patents: Sort by Forward Citations

1. 6821419 - Diffusion cell with quick release clamp (2004-11-23),

2. 6422098 - Dissolution sampling apparatus (2002-07-23),

3. 6076410 - Liquid sample collector and liquid return apparatus (2000-06-20),

4. D424458 - Housing for a dissolution sampling apparatus (2000-05-09),

5. 6006777 - Media dispensing apparatus (1999-12-28),

6. 5682001 - Dissolution test apparatus with counterbalance system (1997-10-28),

7. 5639953 - Alignment verification device for a rotating shaft (1997-06-17),

8. D377152 - Dissolution test apparatus (1997-01-07),

9. 5296139 - Diffusion cell with filter screen (1994-03-22),

10. 5198109 - Diffusion cell (1993-03-30),

11. 4108602 - Sample changing chemical analysis method and apparatus (1978-08-22),

Company Overview

Hanson Research Corporation, based in Chatsworth, California, specializes in the development of innovative testing and analytical equipment for the pharmaceutical and biotechnology industries. The company is renowned for its advanced dissolution testing systems, which are essential for evaluating the release of active pharmaceutical ingredients from dosage forms. With a focus on enhancing drug development processes, Hanson Research is committed to providing high-quality solutions that support regulatory compliance and improve product efficacy.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

11 Patents

#29 in Chatsworth, CA

#6,541 in California

#27,514 in US

#51,761 in the World

Chatsworth, CA, United States of America

Hanson Research Corporation

Forward Citations = 137

10 inventors:

Bruce E Renslow (8 out of 10 patents)

Royal A Hanson (5 out of 9 patents)

Steven W Shaw (4 out of 4 patents)

4. Guillermo E Meneses (3 out of 5 patents)

5. William A Hanson (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hanson Research Corporation. Retrieved from https://idiyas.com/company/hanson-research

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]