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Forward Citations = 112

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6 inventors (with patents filed for the assignee):

Fred L Sabins (2 out of 8 patents)

Voldi E Maki, Jr (1 out of 21 patents)

Geoffrey Robinson (1 out of 4 patents)

4. David B Larson (1 out of 2 patents)

5. Voldi Maki (1 out of 1 patent)

6. Walter D Rose (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 6691559 - Viscometer (2004-02-17),

2. 6575019 - Reciprocating drive/pump system and reciprocating capillary viscometer utilizing same (2003-06-10),

3. 6345535 - Apparatus and method for estimating the compressive strength of foam cement (2002-02-12),

4. 5992223 - Acoustic method for determining the static gel strength of a cement (1999-11-30),

5. 4506542 - Apparatus and procedure for relative permeability measurements (1985-03-26),

Chandler Engineering Company, LLC is a leading provider of testing equipment and services for the oil and gas industry. With over 70 years of experience, Chandler Engineering offers a wide range of products including drilling fluid testing equipment, cement testing equipment, and flowback equipment. Their innovative solutions help companies improve efficiency, safety, and reliability in their operations. Visit their website to learn more about their products and services.

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Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

5 Patents

#9 in Broken Arrow, OK

#258 in Oklahoma

#50,135 in US

Broken Arrow, OK, United States of America

Chandler Engineering Company, LLC