Growing community of inventors

Colonia, NJ, United States of America

John D Speckman

Average Co-Inventor Count = 2.00

ph-index = 1

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 = 2

John D Speckman ↔ William L Herron (1 patent)John D SpeckmanJohn D Speckman (1 patent)William L HerronWilliam L Herron (11 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. The Singer Company (1 from 1,246 patents)


1 patent:

1. 4527494 - Bobbin case position plate adjustment mechanism

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
12/31/2025
Loading…