For the Inventor, By the Inventor

Enter assignee name

Milwaukee, WI, United States of America

Johnson Service Corp.

USPTO Granted Patents = 2

Forward Citations = 86

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9 inventors (with patents filed for the assignee):

Paul E Thoma (1 out of 22 patents)

Gary F Oman (1 out of 2 patents)

Paul H Froehling (1 out of 3 patents)

4. Jeannine O Colla (1 out of 9 patents)

5. Carl F Klein (1 out of 7 patents)

6. Ivshin Yefim (1 out of 1 patent)

7. Arthur Barootian (1 out of 2 patents)

8. James E Greve (1 out of 6 patents)

9. Scott L Spence (1 out of 6 patents)

2 patents: Sort by Forward Citations

1. 5219041 - Differential pressure sensor for screw compressors (1993-06-15),

2. 5090246 - Elastomer type low pressure sensor (1992-02-25),

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USPTO Data Jan 1 1976 - Dec 30 2025

2 Patents

#252 in Milwaukee, WI

#1,867 in Wisconsin

#92,642 in US

Milwaukee, WI, United States of America

Johnson Service Corp.

Forward Citations = 86

9 inventors:

Paul E Thoma (1 out of 22 patents)

Gary F Oman (1 out of 2 patents)

Paul H Froehling (1 out of 3 patents)

4. Jeannine O Colla (1 out of 9 patents)

5. Carl F Klein (1 out of 7 patents)

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