For the Inventor, By the Inventor

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CA, CO, United States of America

Power Climber Inc.

USPTO Granted Patents = 3

Forward Citations = 52

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5 inventors (with patents filed for the assignee):

Marvin M May (2 out of 15 patents)

Robert C Billings (2 out of 2 patents)

Harry A Kendall (2 out of 2 patents)

4. Jeffrey T Bayorgeon (2 out of 2 patents)

5. Wilburn L Hippach (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 4611787 - Efficient lightweight hoist with multiple-cable-size traction and safety (1986-09-16),

2. 4555091 - Efficient lightweight hoist with multiple-cable-size traction and safety (1985-11-26),

3. 4139178 - Hoist apparatus (1979-02-13),

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#6 in CA, CO

#1,713 in Colorado

#71,949 in US

CA, CO, United States of America

Power Climber Inc.

Forward Citations = 52

5 inventors:

Marvin M May (2 out of 15 patents)

Robert C Billings (2 out of 2 patents)

Harry A Kendall (2 out of 2 patents)

4. Jeffrey T Bayorgeon (2 out of 2 patents)

5. Wilburn L Hippach (1 out of 1 patent)

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