Growing community of inventors

Los Angeles, CA, United States of America

Chengquan Zhao

Average Co-Inventor Count = 3.27

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 = 0

Chengquan Zhao ↔ Robert I Lehrer (3 patents)Chengquan Zhao ↔ In-Hee Lee (3 patents)Chengquan Zhao ↔ Sylvia L Harwig, Deceased (1 patent)Chengquan ZhaoChengquan Zhao (3 patents)Robert I LehrerRobert I Lehrer (33 patents)In-Hee LeeIn-Hee Lee (3 patents)Sylvia L Harwig, DeceasedSylvia L Harwig, Deceased (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. University of California (3 from 15,471 patents)


3 patents:

1. 6040293 - Clavanins

2. 6010876 - Clavanins

3. 5998374 - Clavaspirins

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as of
12/17/2025
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