For the Inventor, By the Inventor

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Louisville, KY, United States of America

Tubemaster, Inc.

USPTO Granted Patents = 23

% Expired Patents = 21.7

CIPO Patents = 2

EPO Patents = 3

Trademarks = 1

Forward Citations = 92

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13 inventors (with patents filed for the assignee):

Clifford L Johns (23 out of 42 patents)

Daniel D Sympson (12 out of 14 patents)

Dennis Patrick McAndrews (6 out of 14 patents)

4. Munaf Chasmawala (4 out of 12 patents)

5. August M Dattilo, Iii (4 out of 5 patents)

6. Douglas Keith Cornett (4 out of 4 patents)

7. Manfred W Schmidt (4 out of 12 patents)

8. Paul D Gossen (2 out of 2 patents)

9. Stephen W Brewer (1 out of 6 patents)

10. Guillermo Camoriano (1 out of 5 patents)

11. Samuel Richard Gates (1 out of 1 patent)

12. Wayne Howard Franklin (1 out of 1 patent)

13. Christopher G Johns (1 out of 1 patent)

14. Manfred Schmidt (0 patent)

15. Munaf Najmuddin Chasmawala (0 patent)

23 patents: Sort by Forward Citations

1. 12350677 - Device for loading pellets into reactor tubes (2025-07-08),

2. 12228356 - Device for cleaning inner surface of heat exchanger tubes (2025-02-18),

3. 11833501 - Universal tube marker for identifying chemical reactor tubes accurately and efficiently (2023-12-05),

4. 11660579 - Air lance for removing pellets from tubes (2023-05-30),

5. 11590471 - Device and method for loading pellets into reactor tubes (2023-02-28),

6. 11406955 - Air lance for removing pellets from a tube (2022-08-09),

7. 11103842 - Device and method for loading pellets (2021-08-31),

8. 10710039 - Device and method for loading pellets (2020-07-14),

9. 10493417 - Method for loading pellets (2019-12-03),

10. 10267968 - Lighting and communication system for confined space (2019-04-23),

11. 7913543 - Method of using a device for measuring the back pressure in chemical reactor tubes (2011-03-29),

12. 7878225 - Vacuum attachment and method (2011-02-01),

13. 7861875 - Seal for tube (2011-01-04),

14. 7836919 - Device for loading chemical reactor tubes (2010-11-23),

15. 7818995 - Device for measuring back pressure in open-ended chemical reactor tubes (2010-10-26),

Tubemaster, Inc. is a specialized manufacturer based in Louisville, KY, focusing on innovative solutions for the tubing and piping industry. The company develops advanced products that enhance efficiency and safety in various applications, including industrial and commercial sectors. Tubemaster's expertise lies in engineering high-quality tubing systems and components, leveraging cutting-edge technology to meet the evolving needs of its clients. The organization is committed to delivering reliable and durable solutions that support diverse operational requirements.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

Tubemaster, Inc.

23 Patents

#25 in Louisville, KY

#57 in Kentucky

#14,401 in US

#27,619 in the World

Louisville, KY, United States of America

Tubemaster, Inc.

Forward Citations = 92

13 inventors:

Clifford L Johns (23 out of 42 patents)

Daniel D Sympson (12 out of 14 patents)

Dennis Patrick McAndrews (6 out of 14 patents)

4. Munaf Chasmawala (4 out of 12 patents)

5. August M Dattilo, Iii (4 out of 5 patents)

Please report any incorrect information to [email protected]

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