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For the Inventor, By the Inventor

Houston, TX, United States of America

Tam International, Inc.


USPTO Granted Patents = 36



Trademarks = 6

Forward Citations = 866

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33 inventors (with patents filed for the assignee):

goldMedal Charles O Stokley (12 out of 15 patents)

silverMedal Lawrence Sanford (7 out of 14 patents)

bronzeMedal Caleb Kelley (6 out of 6 patents)

4.  Luis A Garcia (6 out of 18 patents)

5.  Ray Frisby (5 out of 5 patents)

6.  Iain Greenan (4 out of 9 patents)

7.  Andrew Kutac (4 out of 4 patents)

8.  Tim Davis (3 out of 3 patents)

9.  Eugene Resweber (2 out of 3 patents)

10.  Nathaniel Harris (2 out of 2 patents)

11.  Reid Poynor (2 out of 2 patents)

12.  Justin Bowersock (2 out of 4 patents)

13.  Paul Andrew Reinhardt (2 out of 30 patents)

14.  Arthur Loginov (2 out of 2 patents)

15.  Robert T Brooks (2 out of 21 patents)


Core Competencies:
Downhole Packer
Modular Casing Anchor
Swellable Packer
Hydraulic Port Collar
Balanced Piston Toe Sleeve
Inflatable Packer
Fluid Level Valve
Temperature Compensated Element
Wellhead Test Tool
Casing Circulator
Hydraulic Cycle Opening Sleeve
Subterranean Fluid Samples

36 patents:

1. 12460503 - Strain absorbing downhole packer (2025-11-04),
2. 12060755 - Modular casing anchor for downhole tool (2024-08-13),
3. 11834923 - High pressure swellable packer (2023-12-05),
4. 11761278 - Modular casing anchor for downhole tool (2023-09-19),
5. 11697973 - Modular downhole packer (2023-07-11),
6. 11203915 - Low fluid level valve (2021-12-21),
7. 10941633 - Hydraulic port collar (2021-03-09),
8. 10641061 - Hydraulic port collar (2020-05-05),
9. 10619447 - Low fluid level valve (2020-04-14),
10. 10364636 - Swellable casing anchor (2019-07-30),
11. 10156124 - Balanced piston toe sleeve (2018-12-18),
12. 9976380 - Grooved swellable packer (2018-05-22),
13. 9926768 - Slant-drilled valve collar (2018-03-27),
14. 9816345 - Cable wrapped inflatable packer element (2017-11-14),
15. 9725976 - Temperature compensated element and uses thereof in isolating a wellbore (2017-08-08),
Company Overview
Tam International, Inc. is a prominent provider of advanced technologies and solutions for the oil and gas industry, specializing in the design and manufacture of high-performance downhole tools. The company focuses on enhancing drilling efficiency and well integrity through innovative engineering and materials science. With a strong presence in Houston, TX, Tam International serves a global clientele, delivering tailored solutions that address the evolving challenges of energy exploration and production.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

Tam International, Inc. USPTO Patent Assignee Logo
36 Patents

#148 in Houston, TX

#525 in Texas

#9,509 in US

#18,730 in the World

Houston, TX (US)
Houston, TX, United States of America

Tam International, Inc.

Forward Citations = 866

33 inventors:

goldMedal Charles O Stokley (12 out of 15 patents)

silverMedal Lawrence Sanford (7 out of 14 patents)

bronzeMedal Caleb Kelley (6 out of 6 patents)

4.  Luis A Garcia (6 out of 18 patents)

5.  Ray Frisby (5 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tam International, Inc.. Retrieved from https://idiyas.com/company/tam-international

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]
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