Growing community of inventors

Burlingame, CA, United States of America

Robert C Chang

Average Co-Inventor Count = 5.00

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 = 96

Robert C Chang ↔ Thomas B Neff (2 patents)Robert C Chang ↔ David R Olsen (2 patents)Robert C Chang ↔ Kari I Kivirikko (2 patents)Robert C Chang ↔ James W Polarek (2 patents)Robert C Chang ↔ Kim E Williams (0 patent)Robert C ChangRobert C Chang (2 patents)Thomas B NeffThomas B Neff (27 patents)David R OlsenDavid R Olsen (10 patents)Kari I KivirikkoKari I Kivirikko (8 patents)James W PolarekJames W Polarek (2 patents)Kim E WilliamsKim E Williams (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fibrogen, Inc. (2 from 89 patents)


2 patents:

1. 7393928 - Recombinant gelatins

2. 6992172 - Recombinant gelatins

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as of
12/8/2025
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