Growing community of inventors

Friday Harbor, WA, United States of America

Harold DeVillo Harrison

Average Co-Inventor Count = 1.83

ph-index = 3

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 = 51

Harold DeVillo HarrisonSteven David Singleton (2 patents)Harold DeVillo HarrisonGlen Appleby (2 patents)Harold DeVillo HarrisonDonald Thomas Eadie (2 patents)Harold DeVillo HarrisonKevin David Oldknow (2 patents)Harold DeVillo HarrisonWilliam T Urmson (2 patents)Harold DeVillo HarrisonMichael Irwin Handler (2 patents)Harold DeVillo HarrisonJames Gavin Campbell (2 patents)Harold DeVillo HarrisonJacob Matthew Welch (2 patents)Harold DeVillo HarrisonPetar Nedkov Gueorguiev (2 patents)Harold DeVillo HarrisonWalter Eric Spicker (2 patents)Harold DeVillo HarrisonWilliam T Urmson (1 patent)Harold DeVillo HarrisonHarold DeVillo Harrison (4 patents)Steven David SingletonSteven David Singleton (10 patents)Glen ApplebyGlen Appleby (7 patents)Donald Thomas EadieDonald Thomas Eadie (5 patents)Kevin David OldknowKevin David Oldknow (5 patents)William T UrmsonWilliam T Urmson (3 patents)Michael Irwin HandlerMichael Irwin Handler (2 patents)James Gavin CampbellJames Gavin Campbell (2 patents)Jacob Matthew WelchJacob Matthew Welch (2 patents)Petar Nedkov GueorguievPetar Nedkov Gueorguiev (2 patents)Walter Eric SpickerWalter Eric Spicker (2 patents)William T UrmsonWilliam T Urmson (7 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (2 from 832,680 patents)

2. L.b. Foster Rail Technologies, Corp. (2 from 18 patents)

3. Harrison, Harold Devillo (0 patent)


4 patents:

1. 10220860 - Wayside friction management system

2. 9352761 - Wayside friction management system

3. 9222904 - Method and apparatus for detecting track failure

4. 7869909 - Stress monitoring system for railways

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as of
12/8/2025
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