For the Inventor, By the Inventor

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Medina, OH, United States of America

Harco Corporation

USPTO Granted Patents = 13

EPO Patents = 1

Trademarks = 2

Forward Citations = 161

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18 inventors (with patents filed for the assignee):

James B Bushman (4 out of 15 patents)

Clark P Weldon (3 out of 4 patents)

Karl W Nicholas (3 out of 3 patents)

4. Charles G Waits (3 out of 3 patents)

5. Marvin L Miller (2 out of 2 patents)

6. James R Dimond (2 out of 2 patents)

7. Stephen L Wolfson (2 out of 3 patents)

8. Joseph W Rog (2 out of 3 patents)

9. Frank E Rizzo (1 out of 2 patents)

10. David H Kroon (1 out of 1 patent)

11. Charles R Ferry (1 out of 1 patent)

12. Mitchell F Peterson (1 out of 2 patents)

13. Larry H Merrick (1 out of 1 patent)

14. William H Seager (1 out of 1 patent)

15. John Hennessy (1 out of 1 patent)

13 patents: Sort by Forward Citations

1. 4515669 - Anode and connection (1985-05-07),

2. 4467274 - Electrical surveys of underwater or underground structures with (1984-08-21),

3. 4438391 - Electrical survey apparatus and method with spinner-type conductor supply (1984-03-20),

4. 4414511 - Low resistance, fluid replenishing, reference cell and method for using (1983-11-08),

5. 4388594 - Semi-permeable electrolytic cell and method for surveying buried (1983-06-14),

6. 4365191 - Method and apparatus for electrical surveys of offshore metal structures (1982-12-21),

7. 4322805 - Electrical survey method and apparatus (1982-03-30),

8. 4279729 - Anode and method of construction (1981-07-21),

9. 4228399 - Offshore pipeline electrical survey method and apparatus (1980-10-14),

10. 4160171 - Method and apparatus for determining the reference voltage in an (1979-07-03),

11. 4151458 - Closely spaced pipe-to-soil electrical survey method and apparatus (1979-04-24),

12. 4080272 - Cathodic protection method and apparatus (1978-03-21),

13. 4080024 - Underground cable connection (1978-03-21),

Harco Corporation is a leading provider of industrial machinery and equipment for various industries. With over 50 years of experience, we specialize in supplying top-quality products and solutions to meet our customers' needs. Our extensive product range includes CNC machines, robotic systems, and automation equipment. We are committed to delivering superior service and support to ensure the success of our clients' projects.

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

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USPTO Data Jan 1 1976 - Sep 22 2026

13 Patents

#5 in Medina, OH

#1,006 in Ohio

#23,797 in US

#44,921 in the World

Medina, OH, United States of America

Harco Corporation

Forward Citations = 161

18 inventors:

James B Bushman (4 out of 15 patents)

Clark P Weldon (3 out of 4 patents)

Karl W Nicholas (3 out of 3 patents)

4. Charles G Waits (3 out of 3 patents)

5. Marvin L Miller (2 out of 2 patents)

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