For the Inventor, By the Inventor

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Brown Deer, WI, United States of America

Water Pollution Control Corporation

USPTO Granted Patents = 15

Trademarks = 2

Forward Citations = 292

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8 inventors (with patents filed for the assignee):

Lloyd Ewing (8 out of 13 patents)

David T Redmon (6 out of 12 patents)

Paul M Thayer (5 out of 5 patents)

4. William H Roche (4 out of 4 patents)

5. William W Winkler (3 out of 3 patents)

6. Frank L Schmit (2 out of 4 patents)

7. Michael J Bykowski (2 out of 5 patents)

8. Frank L Schmidt (1 out of 1 patent)

15 patents: Sort by Forward Citations

1. 5714062 - Diffuser conduit joint (1998-02-03),

2. 5597491 - Direct delivery in-situ diffuser cleaning (1997-01-28),

3. 5378355 - Direct delivery in-situ diffuser cleaning (1995-01-03),

4. 5328601 - Apparatus for in place gas cleaning of diffusion elements (1994-07-12),

5. 4889620 - In place gas cleaning of diffusion elements (1989-12-26),

6. 4451373 - Ring channel aeration apparatus and method (1984-05-29),

7. 4294696 - Swing diffuser (1981-10-13),

8. 4288395 - Diffusion element with boundary zone treatment (1981-09-08),

9. 4288394 - Sewage aeration system (1981-09-08),

10. 4261933 - Diffusion element (1981-04-14),

11. 4261932 - Diffusion element with boundary zone treatment (1981-04-14),

12. 4198299 - Microscreen method and apparatus (1980-04-15),

13. 4012470 - Sewage treatment aeration systems (1977-03-15),

14. 3979289 - Filtration method (1976-09-07),

15. 3953553 - Sewage treatment aeration systems (1976-04-27),

Water Pollution Control Corporation is a leading environmental company specializing in water treatment solutions. With a focus on reducing pollution and protecting water sources, we provide innovative technologies and services to industrial and municipal clients. Our team of experts are dedicated to ensuring clean water for generations to come.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 13 2026

15 Patents

#1 in Brown Deer, WI

#479 in Wisconsin

#20,457 in US

#38,775 in the World

Brown Deer, WI, United States of America

Water Pollution Control Corporation

Forward Citations = 292

8 inventors:

Lloyd Ewing (8 out of 13 patents)

David T Redmon (6 out of 12 patents)

Paul M Thayer (5 out of 5 patents)

4. William H Roche (4 out of 4 patents)

5. William W Winkler (3 out of 3 patents)

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