For the Inventor, By the Inventor

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Midland, TX, United States of America

End Devices, Inc.

USPTO Granted Patents = 3

Forward Citations = 78

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5 inventors (with patents filed for the assignee):

G Wayne Westerman (2 out of 5 patents)

Barry S Welton (2 out of 3 patents)

Richard C Montgomery (1 out of 3 patents)

4. Granval W Westerman (1 out of 2 patents)

5. Michael E Hill (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 4583915 - Pump-off controller (1986-04-22),

2. 4302157 - High fluid level pump off controller and process (1981-11-24),

3. 4058757 - Well pump-off controller (1977-11-15),

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USPTO Data Jan 1 1976 - Dec 23 2025

3 Patents

#33 in Midland, TX

#4,681 in Texas

#71,950 in US

Midland, TX, United States of America

End Devices, Inc.

Forward Citations = 78

5 inventors:

G Wayne Westerman (2 out of 5 patents)

Barry S Welton (2 out of 3 patents)

Richard C Montgomery (1 out of 3 patents)

4. Granval W Westerman (1 out of 2 patents)

5. Michael E Hill (1 out of 1 patent)

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