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Erie, PA, United States of America

Frank T Clark, Jr

Average Co-Inventor Count = 1.00

ph-index = 3

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 = 43

Frank T Clark, JrFrank T Clark, Jr (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Tantera, Inc. (3 from 6 patents)


3 patents:

1. 4385411 - Angle broom

2. 4168791 - Folding hanger

3. 4077672 - Method of making a sponge mop part

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as of
12/19/2025
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