Growing community of inventors

Washougal, WA, United States of America

Craig E Spiegelberg

Average Co-Inventor Count = 2.00

ph-index = 1

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 = 19

Craig E SpiegelbergMatthew L Ward (4 patents)Craig E SpiegelbergCraig E Spiegelberg (4 patents)Matthew L WardMatthew L Ward (50 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Location Sentry Corp. (4 from 4 patents)


4 patents:

1. 9693286 - Emission control for wireless location management

2. 9693233 - Intelligent agent for privacy and security application

3. 9467804 - Emission control for wireless location management

4. 9282435 - Location spoofing detection

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as of
12/9/2025
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