Growing community of inventors

Parma Heights, OH, United States of America

John L Crewse

Average Co-Inventor Count = 1.00

ph-index = 2

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 19

John L CrewseJohn L Crewse (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Samuel Moore and Company (1 from 22 patents)

2. The Cleveland Vibrator Company (1 from 2 patents)


2 patents:

1. 4154495 - Securement clip for electrical receptacles having hinged cover plates

2. 4070947 - Springless impactor

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as of
1/13/2026
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