Growing community of inventors

Lucas, TX, United States of America

Roger Stevens

Average Co-Inventor Count = 4.29

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 = 95

Roger StevensJeffrey Alan Millington (2 patents)Roger StevensLarry E Spencer (2 patents)Roger StevensMike Mouser (2 patents)Roger StevensMarc Brian Ruskin (1 patent)Roger StevensRyan Stevens (1 patent)Roger StevensChristopher P Hook (1 patent)Roger StevensWilliam F Hook, Legal Representative (1 patent)Roger StevensChristopher J Hook, Deceased (1 patent)Roger StevensRoger Stevens (3 patents)Jeffrey Alan MillingtonJeffrey Alan Millington (30 patents)Larry E SpencerLarry E Spencer (13 patents)Mike MouserMike Mouser (2 patents)Marc Brian RuskinMarc Brian Ruskin (2 patents)Ryan StevensRyan Stevens (1 patent)Christopher P HookChristopher P Hook (1 patent)William F Hook, Legal RepresentativeWilliam F Hook, Legal Representative (1 patent)Christopher J Hook, DeceasedChristopher J Hook, Deceased (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitac International Corporation (1 from 222 patents)

2. Navigation Solutions, LLC (1 from 5 patents)

3. Magellan Navigation, Inc. (1 from 3 patents)


3 patents:

1. 9464910 - Navigation system with web interface

2. 7668652 - Portable vehicle navigation system

3. 7295921 - Portable vehicle navigation system

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as of
12/17/2025
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