Growing community of inventors

Topsfield, MA, United States of America

John W Ryan

Average Co-Inventor Count = 5.00

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 = 20

John W Ryan ↔ Gregory M Wilson (2 patents)John W Ryan ↔ Harry G Lippert (2 patents)John W Ryan ↔ Vernon J Krupa (2 patents)John W Ryan ↔ Donald R Garton (2 patents)John W RyanJohn W Ryan (2 patents)Gregory M WilsonGregory M Wilson (8 patents)Harry G LippertHarry G Lippert (7 patents)Vernon J KrupaVernon J Krupa (7 patents)Donald R GartonDonald R Garton (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Extrusion Dies, Inc. (2 from 15 patents)


2 patents:

1. 5962041 - Dual flexible lip extrusion apparatus

2. 5679383 - Dual flexible lip extrusion apparatus

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
1/9/2026
Loading…