For the Inventor, By the Inventor

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Toledo, OH, United States of America

Apx Group, Inc.

USPTO Granted Patents = 14

Trademarks = 1

Forward Citations = 249

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13 inventors (with patents filed for the assignee):

Jon W Harwood (6 out of 40 patents)

James E Gerber (6 out of 10 patents)

Michael W Clegg (4 out of 12 patents)

4. Donald P Harter (3 out of 3 patents)

5. Gerald R Trudell (2 out of 5 patents)

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

7. Dennis W Barber (2 out of 2 patents)

8. Theodore F Kraska (2 out of 2 patents)

9. Clinton R Hay (2 out of 2 patents)

10. Robert J Kovacs (2 out of 2 patents)

11. Willy Herrmann (2 out of 2 patents)

12. Mark C Treadwell (1 out of 1 patent)

13. Perry A Main (1 out of 2 patents)

14 patents: Sort by Forward Citations

1. 4619292 - Air gap pipe (1986-10-28),

2. 4590652 - Method for fabricating an air gap pipe (1986-05-27),

3. 4558721 - Double walled tubing (1985-12-17),

4. 4545605 - Welded tube and flange, e.g., for exhaust manifold (1985-10-08),

5. 4537027 - Hybrid exhaust manifold (1985-08-27),

6. 4530231 - Method and apparatus for expanding tubular members (1985-07-23),

7. 4516659 - Replacement muffler and process for making same (1985-05-14),

8. 4501302 - Air gap pipe (1985-02-26),

9. 4500030 - Flange weld technique (1985-02-19),

10. 4486932 - Process for making a replacement muffler (1984-12-11),

11. 4483061 - Double walled tubing and process for producing same (1984-11-20),

12. 4478310 - Universal heat shield (1984-10-23),

13. 4475623 - Universal muffler assembly (1984-10-09),

14. 4473131 - Threaded muffler nipple and bushing (1984-09-25),

Apx Group, Inc. is a Toledo, Ohio-based company specializing in advanced technology solutions and engineering services. The organization focuses on developing innovative products and systems across various sectors, including automotive, aerospace, and industrial applications. Apx Group is committed to enhancing performance and efficiency through cutting-edge research and development, leveraging expertise in areas such as materials science, software engineering, and systems integration to meet the evolving needs of its clients.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

14 Patents

#32 in Toledo, OH

#940 in Ohio

#22,302 in US

#42,199 in the World

Toledo, OH, United States of America

Apx Group, Inc.

Forward Citations = 249

13 inventors:

Jon W Harwood (6 out of 40 patents)

James E Gerber (6 out of 10 patents)

Michael W Clegg (4 out of 12 patents)

4. Donald P Harter (3 out of 3 patents)

5. Gerald R Trudell (2 out of 5 patents)

Please report any incorrect information to [email protected]

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