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Omaha, NE, United States of America

Mark Stevens

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 = 211

Mark StevensMark Stevens (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. International Gamco, Inc. (2 from 4 patents)


2 patents:

1. 6447395 - Game ticket system to be played with keno

2. 5562284 - Game ticket with multiple-level exposure device

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as of
12/21/2025
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