Growing community of inventors

Cora, WY, United States of America

William G Kellen

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 = 141

William G KellenWilliam G Kellen (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Bettina Corporation (3 from 3 patents)


3 patents:

1. 7118477 - Portable electronic bingo device

2. 6645072 - Portable electronic bingo device

3. 5967895 - Portable electronic bingo device

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as of
10/18/2025
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