Growing community of inventors

Trotwood, OH, United States of America

John C Layman

Average Co-Inventor Count = 3.58

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 = 44

John C LaymanMichel J Vermoesen (2 patents)John C LaymanByengsu Kim (2 patents)John C LaymanSchuyler Scott Shaw (1 patent)John C LaymanJohn Benjamin Hageman (1 patent)John C LaymanJames William Zehnder, Ii (1 patent)John C LaymanPaul Rymoff, Jr (1 patent)John C LaymanErnst Severin Baumgartner (1 patent)John C LaymanAlan H Green (1 patent)John C LaymanElaine Ann Ruble (1 patent)John C LaymanJohn C Layman (4 patents)Michel J VermoesenMichel J Vermoesen (12 patents)Byengsu KimByengsu Kim (2 patents)Schuyler Scott ShawSchuyler Scott Shaw (43 patents)John Benjamin HagemanJohn Benjamin Hageman (30 patents)James William Zehnder, IiJames William Zehnder, Ii (18 patents)Paul Rymoff, JrPaul Rymoff, Jr (8 patents)Ernst Severin BaumgartnerErnst Severin Baumgartner (8 patents)Alan H GreenAlan H Green (4 patents)Elaine Ann RubleElaine Ann Ruble (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Delphi Technologies, Inc. (4 from 5,161 patents)


4 patents:

1. 6871496 - Adjustable dual center port compensation for master cylinder

2. 6766644 - Master cylinder with by-pass function and proportioning valve

3. 6619039 - Brake master cylinder-sensor system and method

4. 6549126 - Dry interface corner actuator single sensor for lining wear and low reservoir detection

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as of
1/13/2026
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