For the Inventor, By the Inventor

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Grand Rapids, MI, United States of America

Diesel Technology Corporation

USPTO Granted Patents = 3

Trademarks = 1

Forward Citations = 72

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9 inventors (with patents filed for the assignee):

Robert D Straub (2 out of 39 patents)

Richard F Teerman (2 out of 16 patents)

Thomas Edwin Earhart (1 out of 4 patents)

4. Roger L Wolfsen (1 out of 1 patent)

5. Leland Haines (1 out of 1 patent)

6. Patrick J Crowley (1 out of 1 patent)

7. Richard L Hilsbos (1 out of 2 patents)

8. Harold L Wieland (1 out of 2 patents)

9. Robert C Timmer (1 out of 7 patents)

3 patents: Sort by Forward Citations

1. 5815920 - Method of assembling fuel injector pump components (1998-10-06),

2. 5155461 - Solenoid stator assembly for electronically actuated fuel injectors and (1992-10-13),

3. 5133645 - Common rail fuel injection system (1992-07-28),

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USPTO Data Jan 1 1976 - Sep 22 2026

3 Patents

#134 in Grand Rapids, MI

#2,489 in Michigan

#73,727 in US

Grand Rapids, MI, United States of America

Diesel Technology Corporation

Forward Citations = 72

9 inventors:

Robert D Straub (2 out of 39 patents)

Richard F Teerman (2 out of 16 patents)

Thomas Edwin Earhart (1 out of 4 patents)

4. Roger L Wolfsen (1 out of 1 patent)

5. Leland Haines (1 out of 1 patent)

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