Growing community of inventors

Cement City, MI, United States of America

Doug Lewin

Average Co-Inventor Count = 1.78

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 = 24

Doug Lewin ↔ Helmut Gegalski (1 patent)Doug Lewin ↔ Michael L Babala (1 patent)Doug Lewin ↔ Marc Bolitho (1 patent)Doug Lewin ↔ Burkard Bustgens (1 patent)Doug Lewin ↔ Nicodemus Kappen (1 patent)Doug Lewin ↔ Gordon Thomas (1 patent)Doug Lewin ↔ Thomas Barron (1 patent)Doug LewinDoug Lewin (2 patents)Helmut GegalskiHelmut Gegalski (12 patents)Michael L BabalaMichael L Babala (11 patents)Marc BolithoMarc Bolitho (7 patents)Burkard BustgensBurkard Bustgens (1 patent)Nicodemus KappenNicodemus Kappen (1 patent)Gordon ThomasGordon Thomas (1 patent)Thomas BarronThomas Barron (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kelsey-hayes Company (2 from 577 patents)


2 patents:

1. 7424347 - Motion sensors integrated within an electro-hydraulic control unit

2. 6362717 - Coil assembly

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as of
12/29/2025
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