For the Inventor, By the Inventor

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Houston, TX, United States of America

Schlumberger Technology Corporation - Dowell Division

USPTO Granted Patents = 2

Forward Citations = 306

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5 inventors (with patents filed for the assignee):

J Ernest Brown (1 out of 41 patents)

Paul A Price (1 out of 2 patents)

Erik B Nelson (1 out of 40 patents)

4. Roger J Card (1 out of 11 patents)

5. Xiaoping Qiu (1 out of 2 patents)

2 patents: Sort by Forward Citations

1. 5964295 - Methods and compositions for testing subterranean formations (1999-10-12),

2. 5415228 - Fluid loss control additives for use with gravel pack placement fluids (1995-05-16),

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USPTO Data Jan 1 1976 - Sep 29 2026

2 Patents

#1,541 in Houston, TX

#6,293 in Texas

#94,730 in US

Houston, TX, United States of America

Schlumberger Technology Corporation - Dowell Division

Forward Citations = 306

5 inventors:

J Ernest Brown (1 out of 41 patents)

Paul A Price (1 out of 2 patents)

Erik B Nelson (1 out of 40 patents)

4. Roger J Card (1 out of 11 patents)

5. Xiaoping Qiu (1 out of 2 patents)

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