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For the Inventor, By the Inventor

Houston, TX, United States of America

Johnson Screens, Inc.


USPTO Granted Patents = 16

% Expired Patents = 12.5



Trademarks = 8

Forward Citations = 73

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30 inventors (with patents filed for the assignee):

goldMedal Michael Richard Ekholm (7 out of 35 patents)

silverMedal Morris G Haney (4 out of 5 patents)

bronzeMedal Roy L Thein (4 out of 5 patents)

4.  Mark Watson (2 out of 270 patents)

5.  Ehrich Shaw (2 out of 2 patents)

6.  Clarence Leavitt (2 out of 3 patents)

7.  Richard Charles Maxson (1 out of 16 patents)

8.  Garth Hayes Saul (1 out of 13 patents)

9.  Timothy Charles Wolf (1 out of 4 patents)

10.  Thomas L Hennemann (1 out of 12 patents)

11.  Steven Dehn (1 out of 3 patents)

12.  Charles Flansburg (1 out of 6 patents)

13.  Frederick Granet (1 out of 1 patent)

14.  Fabrice Courageot (1 out of 1 patent)

15.  John Schwert (1 out of 1 patent)


16 patents:

1. 12760820 - Pipe length and related methods of pipe connection (2026-10-13),
2. 12623939 - Biofilter with shaped underdrain assembly (2026-05-12),
3. 12491455 - Advanced passive wedge wire screen intake (2025-12-09),
4. 12486928 - Anti-rotational pipe coupling (2025-12-02),
5. 12138592 - Air burst system for cleaning submerged screen intake (2024-11-12),
6. 11873612 - Screen intake flow control and support device (2024-01-16),
7. 11872571 - Batch centrifuge filter screen (2024-01-16),
8. 8491787 - Leveling hold-down mechanism for lateral screens (2013-07-23),
9. 8439071 - Screen basket vortex breaker for vessel (2013-05-14),
10. 8297448 - Screen intake device for shallow water (2012-10-30),
11. 8028691 - Passive solar wire screens for buildings (2011-10-04),
12. 8020899 - PVC pipe coupling (2011-09-20),
13. 7470383 - Submersible pump drop pipe and casing assembly connection and method of manufacture (2008-12-30),
14. 7425024 - Submersible pump drop pipe and casing assembly connection and method of manufacture (2008-09-16),
15. 7261326 - Submersible pump drop pipe and casing assembly connection and method of manufacture (2007-08-28),
Company Overview
Johnson Screens, Inc. is a leading provider of engineered solutions for water and wastewater treatment, as well as industrial filtration. Specializing in the design and manufacture of high-quality screening equipment, the company serves a diverse range of industries, including oil and gas, mining, and municipal water systems. With a strong focus on innovation and technology, Johnson Screens is committed to delivering efficient and sustainable solutions to meet the evolving needs of its global clientele.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

16 Patents

#326 in Houston, TX

#1,216 in Texas

#19,922 in US

#37,831 in the World

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

Johnson Screens, Inc.

Forward Citations = 73

30 inventors:

goldMedal Michael Richard Ekholm (7 out of 35 patents)

silverMedal Morris G Haney (4 out of 5 patents)

bronzeMedal Roy L Thein (4 out of 5 patents)

4.  Mark Watson (2 out of 270 patents)

5.  Ehrich Shaw (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Johnson Screens, Inc.. Retrieved from https://idiyas.com/company/johnson-screens

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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