For the Inventor, By the Inventor

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Louisville, KY, United States of America

Tubemaster, Inc.

USPTO Granted Patents = 23

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 leading manufacturer of high-quality tubing solutions. With over 20 years of experience in the industry, Tubemaster has established a strong reputation for delivering reliable products to a wide range of sectors, including automotive, aerospace, and industrial applications. Our commitment to innovation, precision, and customer satisfaction has made us the preferred choice for many global companies. Visit our website to learn more about our products and services.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

23 Patents

#23 in Louisville, KY

#53 in Kentucky

#13,953 in US

#26,826 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)

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