Growing community of inventors

Alta Loma, CA, United States of America

Dennis Willard Sorenson

Average Co-Inventor Count = 2.00

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 = 414

Dennis Willard SorensonMichael W Saunders (2 patents)Dennis Willard SorensonDennis Willard Sorenson (2 patents)Michael W SaundersMichael W Saunders (16 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (1 from 832,812 patents)

2. Coinless Systems, Inc. (1 from 1 patent)


2 patents:

1. 6340331 - Cashless peripheral device for a gaming system

2. 6012832 - Cashless peripheral device for a gaming system

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as of
12/19/2025
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