Growing community of inventors

Cummings, GA, United States of America

John H Matthews

Average Co-Inventor Count = 2.14

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 = 49

John H MatthewsFrederick P Boyle (2 patents)John H MatthewsJohn R Martin (2 patents)John H MatthewsGary E Gerber (2 patents)John H MatthewsAlbert L Ruff (2 patents)John H MatthewsL William Silzle (1 patent)John H MatthewsAshley Tillotson (1 patent)John H MatthewsRoy A Miller (1 patent)John H MatthewsL William Silzie (1 patent)John H MatthewsJohn H Matthews (5 patents)Frederick P BoyleFrederick P Boyle (14 patents)John R MartinJohn R Martin (9 patents)Gary E GerberGary E Gerber (2 patents)Albert L RuffAlbert L Ruff (2 patents)L William SilzleL William Silzle (2 patents)Ashley TillotsonAshley Tillotson (1 patent)Roy A MillerRoy A Miller (1 patent)L William SilzieL William Silzie (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. The Lubrizol Corporation (5 from 1,305 patents)


5 patents:

1. 6647838 - Coupler tool

2. 6585009 - System for periodic fluid maintenance of apparatus

3. 6568436 - System for periodic fluid maintenance of apparatus

4. 6244094 - Closed loop calibrator and process of calibrating a liquid metering device in a closed atmosphere

5. 6026991 - Apparatus, system, and method for additizing a liquid product

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as of
12/12/2025
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