Forward Citations = 2,079

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7 inventors (with patents filed for the assignee):

John Urquhart (4 out of 43 patents)

Richard G Hamilton (2 out of 2 patents)

David M Liu (1 out of 11 patents)

4. Alton B Otis, Jr (1 out of 8 patents)

5. Tom Papanek (1 out of 1 patent)

6. Darrell Ingram (1 out of 1 patent)

7. Harold R Elgie (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 5917429 - Contactless communication system (1999-06-29),

2. 5079006 - Pharmaceutical compositions containing a magnetically detectable material (1992-01-07),

3. 4971221 - Drug dispenser having means for detecting dispensing events (1990-11-20),

4. 4939705 - Drug dispensing event detector (1990-07-03),

5. 4748600 - Interactive drug dispenser (1988-05-31),

6. 4725997 - Contingent dosing device (1988-02-16),

Company Overview

Aprex Corporation is a leading technology company specializing in innovative solutions for businesses. With a focus on cutting-edge technology and exceptional customer service, we strive to provide our clients with the best possible solutions for their needs. Our team of experts is dedicated to creating customized solutions that help our clients achieve their goals and stay ahead of the competition.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

6 Patents

#247 in Fremont, CA

#10,565 in California

#44,949 in US

Fremont, CA, United States of America

Aprex Corporation

Forward Citations = 2,079

7 inventors:

John Urquhart (4 out of 43 patents)

Richard G Hamilton (2 out of 2 patents)

David M Liu (1 out of 11 patents)

4. Alton B Otis, Jr (1 out of 8 patents)

5. Tom Papanek (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Aprex Corporation. Retrieved from https://idiyas.com/company/aprex

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]