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For the Inventor, By the Inventor

Louisville, KY, United States of America

Tubemaster, Inc.


USPTO Granted Patents = 23

% Expired Patents = 21.7



Trademarks = 1

Forward Citations = 92

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13 inventors (with patents filed for the assignee):

goldMedal Clifford L Johns (23 out of 42 patents)

silverMedal Daniel D Sympson (12 out of 14 patents)

bronzeMedal 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:

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),
Company Overview
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 synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Tubemaster, Inc. USPTO Patent Assignee Logo
23 Patents

#25 in Louisville, KY

#57 in Kentucky

#14,438 in US

#27,714 in the World

Louisville, KY (US)
Louisville, KY, United States of America

Tubemaster, Inc.

Forward Citations = 92

13 inventors:

goldMedal Clifford L Johns (23 out of 42 patents)

silverMedal Daniel D Sympson (12 out of 14 patents)

bronzeMedal 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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tubemaster, Inc.. Retrieved from https://idiyas.com/company/tubemaster

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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