Growing community of inventors

Spokane, WA, United States of America

David C Koelling

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 = 385

David C KoellingDavid C Koelling (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Digideal Corporation (2 from 39 patents)


2 patents:

1. 6481718 - Method of playing blackjack with a side wager

2. 6158741 - Method of playing blackjack with a side wager

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