For the Inventor, By the Inventor

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Boulder, CO, United States of America

Proto-Tel, Inc.

USPTO Granted Patents = 3

Forward Citations = 28

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4 inventors (with patents filed for the assignee):

Kenneth W Hotchkiss (3 out of 11 patents)

Arthur B Woodward (2 out of 6 patents)

John A Popken (1 out of 7 patents)

4. Art B Woodward (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. D341752 - Combined plate and cup carrier (1993-11-30),

2. D310949 - Lamp extractor and inserter (1990-10-02),

3. 4697720 - Terminal block cover (1987-10-06),

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USPTO Data Jan 1 1976 - Sep 22 2026

3 Patents

#301 in Boulder, CO

#1,772 in Colorado

#73,717 in US

Boulder, CO, United States of America

Proto-Tel, Inc.

Forward Citations = 28

4 inventors:

Kenneth W Hotchkiss (3 out of 11 patents)

Arthur B Woodward (2 out of 6 patents)

John A Popken (1 out of 7 patents)

4. Art B Woodward (1 out of 1 patent)

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