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For the Inventor, By the Inventor

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):

goldMedal Robert D Straub (2 out of 39 patents)

silverMedal Richard F Teerman (2 out of 16 patents)

bronzeMedal 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:

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 - Dec 9 2025

3 Patents

#123 in Grand Rapids, MI

#2,443 in Michigan

#71,968 in US

...
Grand Rapids, MI, United States of America

Diesel Technology Corporation

Forward Citations = 72

9 inventors:

goldMedal Robert D Straub (2 out of 39 patents)

silverMedal Richard F Teerman (2 out of 16 patents)

bronzeMedal 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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