Growing community of inventors

Los Altos Hills, CA, United States of America

Roger B Spreen

Average Co-Inventor Count = 2.40

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 = 26

Roger B SpreenRobert Alan Swirsky (2 patents)Roger B SpreenMichael J Van Riper (1 patent)Roger B SpreenMichael S Robertson (1 patent)Roger B SpreenJames J Ryan (1 patent)Roger B SpreenRoger B Spreen (3 patents)Robert Alan SwirskyRobert Alan Swirsky (14 patents)Michael J Van RiperMichael J Van Riper (1 patent)Michael S RobertsonMichael S Robertson (1 patent)James J RyanJames J Ryan (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Chatterbeak, Inc. (2 from 2 patents)

2. Local.com Corporation (1 from 5 patents)


3 patents:

1. 9888359 - Communication based on geographical region

2. 9730023 - Communication based on geographical region

3. 8032427 - System for providing localized shopping information

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as of
12/27/2025
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