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Rochester Hills, MI, United States of America

Charles Chang

Average Co-Inventor Count = 3.77

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 = 37

Charles ChangKenneth J Parker (3 patents)Charles ChangTae-Kyung Kim (3 patents)Charles ChangNathan W Kryglowski (3 patents)Charles ChangKelly M Newby (2 patents)Charles ChangMark William Hildebrandt (1 patent)Charles ChangJorge A Moreno (1 patent)Charles ChangThomas Robert Hildebrandt (1 patent)Charles ChangRandy R Reamsma (1 patent)Charles ChangJeffrey S Diller (1 patent)Charles ChangCharles Chang (4 patents)Kenneth J ParkerKenneth J Parker (14 patents)Tae-Kyung KimTae-Kyung Kim (7 patents)Nathan W KryglowskiNathan W Kryglowski (4 patents)Kelly M NewbyKelly M Newby (4 patents)Mark William HildebrandtMark William Hildebrandt (6 patents)Jorge A MorenoJorge A Moreno (5 patents)Thomas Robert HildebrandtThomas Robert Hildebrandt (2 patents)Randy R ReamsmaRandy R Reamsma (1 patent)Jeffrey S DillerJeffrey S Diller (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Eaton Corporation (4 from 5,989 patents)


4 patents:

1. 7214103 - Connecting a solenoid to a lead frame

2. 7051993 - Solenoid operated valve and method of making same

3. 7007641 - Electro-hydraulic assembly for controlling engine valve deactivation

4. 6539971 - Method and apparatus for mounting solenoid operated valve

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as of
12/29/2025
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