Growing community of inventors

Santa Barbara, CA, United States of America

John Y Yan

Average Co-Inventor Count = 2.00

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 = 179

John Y YanBobby K Purkait (2 patents)John Y YanJohn Y Yan (2 patents)Bobby K PurkaitBobby K Purkait (12 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mentor Corporation (2 from 82 patents)


2 patents:

1. 5022942 - Method of making textured surface prosthesis implants

2. 4960425 - Textured surface frosthesis implants

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as of
1/10/2026
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