Growing community of inventors

Palto Alto, CA, United States of America

Sonja Schiefer

Average Co-Inventor Count = 7.00

ph-index = 1

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 = 1

Sonja Schiefer ↔ Darwin Chang (1 patent)Sonja Schiefer ↔ Paul Wang (1 patent)Sonja Schiefer ↔ Charlie Pai (1 patent)Sonja Schiefer ↔ Frank Kao (1 patent)Sonja Schiefer ↔ Ray Ho (1 patent)Sonja Schiefer ↔ Daniel Harden (1 patent)Sonja SchieferSonja Schiefer (1 patent)Darwin ChangDarwin Chang (6 patents)Paul WangPaul Wang (2 patents)Charlie PaiCharlie Pai (1 patent)Frank KaoFrank Kao (1 patent)Ray HoRay Ho (1 patent)Daniel HardenDaniel Harden (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Princeton Graphic Systems, Inc. (1 from 1 patent)


1 patent:

1. D404380 - Computer monitor

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as of
12/21/2025
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