For the Inventor, By the Inventor

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Medina, OH, United States of America

Corrpro Companies, Inc.

USPTO Granted Patents = 17

% Expired Patents = 11.8

CIPO Patents = 1

Trademarks = 11

Forward Citations = 124

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21 inventors (with patents filed for the assignee):

James B Bushman (4 out of 15 patents)

Michael K Baach (4 out of 4 patents)

William P Carlson (3 out of 3 patents)

4. Matthew Burbridge (2 out of 2 patents)

5. Levi Blumhagen (2 out of 2 patents)

6. Shawn Poworoznik (2 out of 2 patents)

7. David H Kroon (2 out of 3 patents)

8. Wayne J Swiat (2 out of 2 patents)

9. Leon J Terrase (2 out of 2 patents)

10. Richard J Kochilla (2 out of 2 patents)

11. Otto J Esterle (2 out of 2 patents)

12. Kunio Watanabe (1 out of 54 patents)

13. Shozo Takeya (1 out of 1 patent)

14. James E Delahoyde (1 out of 1 patent)

15. Richard E Say (1 out of 3 patents)

17 patents: Sort by Forward Citations

1. 10718463 - System and method for protecting one or more pipes against corrosion and corrosion-protected pipe (2020-07-21),

2. 10240709 - System and method for protecting one or more pipes against corrosion and corrosion-protected pipe (2019-03-26),

3. 6673309 - Sacrificial anode for cathodic protection and alloy therefor (2004-01-06),

4. 6315876 - Cathodic protection system (2001-11-13),

5. 6187161 - Reference cell (2001-02-13),

6. 5932087 - Submersible anode and method (1999-08-03),

7. 5902463 - Submersible anode and method (1999-05-11),

8. 5885427 - Cast iron anode and method of making (1999-03-23),

9. 5411646 - Cathodic protection anode and systems (1995-05-02),

10. 5370783 - Electrode (1994-12-06),

11. 5340455 - Cathodic protection system for above-ground storage tank bottoms and (1994-08-23),

12. 5216370 - Method and system for measuring the polarized potential of a (1993-06-01),

13. 5141607 - Method and apparatus for the removal of chlorides from steel reinforced (1992-08-25),

14. 5065893 - Cathodic protection system and method for above-ground storage tank (1991-11-19),

15. 4798657 - Cathodic protection system (1989-01-17),

Corrpro Companies, Inc. is a leading provider of corrosion control and cathodic protection solutions, primarily serving the infrastructure and industrial sectors. The company specializes in the development and implementation of advanced technologies aimed at preventing corrosion in various environments, thereby extending the lifespan of critical assets. With a focus on innovative research and engineering, Corrpro operates in diverse geographic markets, delivering tailored solutions that enhance safety and reliability in infrastructure projects.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

17 Patents

#3 in Medina, OH

#806 in Ohio

#18,865 in US

#35,857 in the World

Medina, OH, United States of America

Corrpro Companies, Inc.

Forward Citations = 124

21 inventors:

James B Bushman (4 out of 15 patents)

Michael K Baach (4 out of 4 patents)

William P Carlson (3 out of 3 patents)

4. Matthew Burbridge (2 out of 2 patents)

5. Levi Blumhagen (2 out of 2 patents)

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