For the Inventor, By the Inventor

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Chicago, IL, United States of America

Magnaflux Corporation

USPTO Granted Patents = 40

Trademarks = 3

Forward Citations = 326

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30 inventors (with patents filed for the assignee):

Donald E Lorenzi (10 out of 12 patents)

John J Flaherty (9 out of 9 patents)

Eric J Strauts (6 out of 12 patents)

4. Kenneth W Schroeder (4 out of 4 patents)

5. Adolf Mlot-Fijalkowski (4 out of 4 patents)

6. Peter J Rosauer (3 out of 3 patents)

7. Helmut F Wagerer (3 out of 5 patents)

8. Timothy C Loose (2 out of 126 patents)

9. Richard C Sabielny (2 out of 2 patents)

10. Bruce G Isaacson (2 out of 2 patents)

11. Phillip W Schiffert (2 out of 2 patents)

12. Donald T O'Connor (2 out of 2 patents)

13. Edward Schaefer (2 out of 2 patents)

14. Edward F Schaefer (2 out of 2 patents)

15. Sei H Song (2 out of 3 patents)

Core Competencies:

Waste Water Treatment

Fluorescent Magnetic Composition

Non-Destructive Testing

Eddy Current Testing

Magnetic Particle Inspection

Pipeline Inspection

Ultrasonic Testing

Demagnetizing Methods

Gamma Ray Calibration

Conductivity Measurement

Hydrophobic Powdered Developer

Automatic Locking Radioisotope Camera

40 patents: Sort by Forward Citations

1. 4836921 - Waste water treatment apparatus (1989-06-06),

2. 4724094 - Fluorescent magnetic composition and method of making and using same (1988-02-09),

3. 4703263 - Method for non-destructive testing of a magnetizable workpiece under (1987-10-27),

4. 4659990 - Eddy current test system including a member of high permeability (1987-04-21),

5. 4633620 - System for processing of steel billets or the like to remove surface (1987-01-06),

6. 4528455 - Non-destructive testing system with dual scanning (1985-07-09),

7. 4502253 - Surface treating and testing apparatus (1985-03-05),

8. 4454473 - Spinning probe apparatus for inspection of bolt holes and the like (1984-06-12),

9. 4443759 - Magnetizing current supply for magnetic particle inspection with SCR's (1984-04-17),

10. 4434427 - Atmosphere control for photographic pipeline inspection (1984-02-28),

11. 4433289 - Method for inspecting steel billets with a dry mixture of magnetic (1984-02-21),

12. 4378700 - Indicating system for use in nondestructive testing (1983-04-05),

13. 4372658 - Pipeline inspection apparatus (1983-02-08),

14. 4363545 - Photographic pipeline inspection apparatus including an optical port (1982-12-14),

15. 4361806 - Method using aqueous emulsion having magnetizable particles for (1982-11-30),

Magnaflux Corporation is a leading global provider of non-destructive testing (NDT) solutions, serving various industries such as aerospace, automotive, oil and gas, and more. With over 85 years of experience, Magnaflux offers a wide range of NDT products, equipment, and services for flaw detection, quality assurance, and safety. Their commitment to innovation and advanced technology has made them a trusted partner for ensuring product integrity and reliability.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

40 Patents

#114 in Chicago, IL

#461 in Illinois

#8,351 in US

#16,570 in the World

Chicago, IL, United States of America

Magnaflux Corporation

Forward Citations = 326

30 inventors:

Donald E Lorenzi (10 out of 12 patents)

John J Flaherty (9 out of 9 patents)

Eric J Strauts (6 out of 12 patents)

4. Kenneth W Schroeder (4 out of 4 patents)

5. Adolf Mlot-Fijalkowski (4 out of 4 patents)

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