Growing community of inventors

Huntington, IN, United States of America

James H Spreen

Average Co-Inventor Count = 3.11

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 = 1

James H Spreen ↔ Robert C Smith (1 patent)James H Spreen ↔ Richard J Halsey (1 patent)James H Spreen ↔ Douglas C Lynn (1 patent)James H Spreen ↔ Jonathan D Northup (1 patent)James H Spreen ↔ Christopher J Hawkins (1 patent)James H Spreen ↔ Greg A Emshwiller (1 patent)James H Spreen ↔ Ross E Waite (1 patent)James H SpreenJames H Spreen (2 patents)Robert C SmithRobert C Smith (124 patents)Richard J HalseyRichard J Halsey (3 patents)Douglas C LynnDouglas C Lynn (3 patents)Jonathan D NorthupJonathan D Northup (2 patents)Christopher J HawkinsChristopher J Hawkins (1 patent)Greg A EmshwillerGreg A Emshwiller (1 patent)Ross E WaiteRoss E Waite (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Franklin Electric Company, Inc. (2 from 85 patents)


2 patents:

1. 10090878 - Motor drive system and method

2. 9054625 - Variable speed drive system

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
1/4/2026
Loading…