Growing community of inventors

Webster, NY, United States of America

Stephen P Chen

Average Co-Inventor Count = 3.00

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 = 8

Stephen P ChenEdgar P Lougheed (2 patents)Stephen P ChenCarl B Richenberg (2 patents)Stephen P ChenStephen P Chen (2 patents)Edgar P LougheedEdgar P Lougheed (4 patents)Carl B RichenbergCarl B Richenberg (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Eastman-kodak Company (2 from 21,594 patents)


2 patents:

1. 5108611 - Method of preparing coupler dispersions for photographic use

2. 5024929 - Method of preparing coupler dispersions for photographic use

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12/7/2025
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