C&j Spec-Rent Services, Inc.

Calculating rank

USPTO Granted Patents = 5

% Expired Patents = 40.0

CIPO Patents = 9

EPO Patents = 2

Forward Citations = 26

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10 inventors (with patents filed for the assignee):

Sean C Buchanan (1 out of 1 patent)

Stuart Schaaf (1 out of 3 patents)

Marcus D Wernig (1 out of 3 patents)

4. Ronald Mark Sherwood (1 out of 2 patents)

5. Chase H Foster (1 out of 1 patent)

6. Steven DeLozier (1 out of 1 patent)

7. Ed Keppler (1 out of 1 patent)

8. Joshua Comstock (1 out of 1 patent)

9. Brandon Simmons (1 out of 1 patent)

10. William Dale Logan (2 patents)

11. Lance I Fielder (16 patents)

12. Sridhar Srinivasan (1 patent)

13. III Fielder Robert P (0 patent)

5 patents: Sort by Forward Citations

1. 11072996 - Cleaning wellbore perforation clusters and reservoir fractures (2021-07-27),

2. 10301877 - Drilling system, biasing mechanism and method for directionally drilling a borehole (2019-05-28),

3. 9938093 - Proppant delivery system and related method (2018-04-10),

4. 9064650 - Assembly of RF-safe switch and detonator system in a non-RF free environment (2015-06-23),

5. 8733457 - Method and apparatus for axially displacing coiled tubing while minimizing fatigue (2014-05-27),

Company Overview

C&J Spec-Rent Services, Inc. is a leading provider of specialized rental equipment and services for the oil and gas industry. With a strong focus on customer satisfaction and safety, we offer a wide range of equipment solutions for drilling, completion, production, and intervention operations. Our experienced team is dedicated to providing customized rental solutions to meet the unique needs of our clients, ensuring efficient and reliable operations.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

5 Patents

#844 in Houston, TX

#3,334 in Texas

#51,669 in US

Houston, TX, United States of America

C&j Spec-Rent Services, Inc.

Forward Citations = 26

10 inventors:

Sean C Buchanan (1 out of 1 patent)

Stuart Schaaf (1 out of 3 patents)

Marcus D Wernig (1 out of 3 patents)

4. Ronald Mark Sherwood (1 out of 2 patents)

5. Chase H Foster (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: C&j Spec-Rent Services, Inc.. Retrieved from https://idiyas.com/company/c-and-j-spec-rent-services

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]

9 patents (CIPO):

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]

2 patents (EPO):

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]