Growing community of inventors

San Francisco, CA, United States of America

David Hoogstrate

Average Co-Inventor Count = 3.87

ph-index = 4

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 = 41

David HoogstrateArt Medlar (3 patents)David HoogstrateKen Schneider (3 patents)David HoogstrateSandy Jensen (3 patents)David HoogstrateEli Mantel (2 patents)David HoogstrateMatt Gleeson (2 patents)David HoogstrateDavid Cowings (1 patent)David HoogstrateTina Schneider (1 patent)David HoogstrateDavid Hoogstrate (4 patents)Art MedlarArt Medlar (5 patents)Ken SchneiderKen Schneider (4 patents)Sandy JensenSandy Jensen (3 patents)Eli MantelEli Mantel (3 patents)Matt GleesonMatt Gleeson (2 patents)David CowingsDavid Cowings (5 patents)Tina SchneiderTina Schneider (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Symantec Corporation (3 from 3,063 patents)

2. Livebinders, Inc. (1 from 1 patent)


4 patents:

1. 8402102 - Method and apparatus for filtering email spam using email noise reduction

2. 8145710 - System and method for filtering spam messages utilizing URL filtering module

3. 7996436 - Media management system

4. 7831667 - Method and apparatus for filtering email spam using email noise reduction

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as of
12/25/2025
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