% Expired Patents = 20.0

Trademarks = 4

Forward Citations = 18

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8 inventors (with patents filed for the assignee):

Ian J Renkes (3 out of 3 patents)

Donald Allen Anschutz (3 out of 4 patents)

Kimberly Schill (2 out of 2 patents)

4. Allan Ray Rickards (2 out of 33 patents)

5. David A L Garner (1 out of 1 patent)

6. Don A Anschutz (1 out of 1 patent)

7. Cole J Chavey (1 out of 1 patent)

8. John G Wick (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 11365626 - Fluid flow testing apparatus and methods (2022-06-21),

2. 10612356 - Fracture fluid and proppant transport testing systems and methods of using same (2020-04-07),

3. 9377392 - Methods and systems for testing fluids on crushed formation materials under conditions of stress (2016-06-28),

4. 8286514 - Conductivity cell piston extractor and method (2012-10-16),

5. 7121156 - Proppant sampling (2006-10-17),

Company Overview

Proptester, Inc. is a leading provider of property inspection and evaluation services. Our team of experienced professionals use the latest technology to conduct thorough assessments of residential and commercial properties for clients in the real estate industry. With a focus on accuracy and efficiency, we help our clients make informed decisions about their properties. Visit our website to learn more about our services and how we can assist you with your property needs.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

5 Patents

#9 in Cypress, TX

#3,331 in Texas

#51,620 in US

Cypress, TX, United States of America

Proptester, Inc.

Forward Citations = 18

8 inventors:

Ian J Renkes (3 out of 3 patents)

Donald Allen Anschutz (3 out of 4 patents)

Kimberly Schill (2 out of 2 patents)

4. Allan Ray Rickards (2 out of 33 patents)

5. David A L Garner (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Proptester, Inc.. Retrieved from https://idiyas.com/company/proptester

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]