Growing community of inventors

Venice, CA, United States of America

John Carruthers

Average Co-Inventor Count = 4.00

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 = 55

John CarruthersDaniel J Smith (2 patents)John CarruthersJohn F Page (2 patents)John CarruthersCharles A Gressett, Jr (2 patents)John CarruthersJohn Carruthers (2 patents)Daniel J SmithDaniel J Smith (13 patents)John F PageJohn F Page (13 patents)Charles A Gressett, JrCharles A Gressett, Jr (10 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fender Musical Instruments Corporation (2 from 76 patents)


2 patents:

1. 4768415 - Tremolo bridge for guitars

2. 4677891 - Tremolo bridge for guitars

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as of
12/27/2025
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