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St. Louis, MO, United States of America

Dema Engineering Company

USPTO Granted Patents = 15

Trademarks = 4

Forward Citations = 275

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13 inventors (with patents filed for the assignee):

Paul E Naslund (6 out of 6 patents)

Michael L Nowicki (6 out of 6 patents)

James Michael Schlueter (4 out of 6 patents)

4. Bruce Weber (2 out of 2 patents)

5. Timothy L Kinser (1 out of 1 patent)

6. Fredrick B Jedlicka (1 out of 1 patent)

7. James Schuleter (1 out of 1 patent)

8. Sone Justin Chan (1 out of 1 patent)

9. Michael Lee Huegerich (1 out of 11 patents)

10. Jeffrey J Smith (1 out of 1 patent)

11. Robert W Haul (1 out of 4 patents)

12. Frederick B Jedlicka (1 out of 6 patents)

13. Lambert Holmes (1 out of 1 patent)

15 patents: Sort by Forward Citations

1. 11426745 - Turbine driven chemical dispenser (2022-08-30),

2. 9808773 - Assembly for controlling eductive dispensing (2017-11-07),

3. 9561481 - Multi-chemical dispensing device (2017-02-07),

4. D682103 - Bottle insert (2013-05-14),

5. 7331488 - Multi-chemical dispensing system (2008-02-19),

6. 6648003 - Backflow preventer (2003-11-18),

7. 6607174 - Dispensing apparatus with in-line actuator (2003-08-19),

8. 6213353 - Solid bowl feeder and equipment tray assembly (2001-04-10),

9. 5797420 - Proportioner (1998-08-25),

10. 5518020 - Proportioner (1996-05-21),

11. 5141016 - Divertor valve (1992-08-25),

12. 5123449 - Selector valve (1992-06-23),

13. 4934651 - Magnetically operated valve and timer assembly (1990-06-19),

14. 4815634 - Vacuum actuated pump (1989-03-28),

15. 4276001 - Fluid pump assembly (1981-06-30),

Dema Engineering Company is a leading provider of engineering solutions. Specializing in mechanical, electrical, and civil engineering services, Dema Engineering has a proven track record of delivering high-quality projects on time and within budget. With a team of experienced professionals and state-of-the-art technology, Dema Engineering is committed to exceeding client expectations and maintaining the highest standards of quality and excellence.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

15 Patents

#120 in St. Louis, MO

#281 in Missouri

#20,392 in US

#38,649 in the World

St. Louis, MO, United States of America

Dema Engineering Company

Forward Citations = 275

13 inventors:

Paul E Naslund (6 out of 6 patents)

Michael L Nowicki (6 out of 6 patents)

James Michael Schlueter (4 out of 6 patents)

4. Bruce Weber (2 out of 2 patents)

5. Timothy L Kinser (1 out of 1 patent)

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