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Santa Rosa, CA, United States of America

John Ferro

Average Co-Inventor Count = 4.76

ph-index = 3

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 = 48

John FerroAndreas Wilhelm Dreher (5 patents)John FerroLaurence Warden (5 patents)John FerroShui T Lai (4 patents)John FerroJagdish M Jethmalani (4 patents)John FerroWilliam G Foote (1 patent)John FerroJohn Ferro (5 patents)Andreas Wilhelm DreherAndreas Wilhelm Dreher (56 patents)Laurence WardenLaurence Warden (25 patents)Shui T LaiShui T Lai (65 patents)Jagdish M JethmalaniJagdish M Jethmalani (38 patents)William G FooteWilliam G Foote (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ophthonix, Inc. (4 from 51 patents)

2. Essilor International (Compagnie General D'optique) (1 from 33 patents)

3. Essilor International (731 patents)


5 patents:

1. 8636359 - Vision correction lenses

2. 8002407 - System for manufacturing an optical lens

3. 7659971 - Lensometers and wavefront sensors and methods of measuring aberration

4. 7497573 - System for manufacturing an optical lens

5. 7234810 - System for manufacturing an optical lens

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as of
1/19/2026
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