Growing community of inventors

Fort Madison, IA, United States of America

Harold Koehler

Average Co-Inventor Count = 3.00

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 = 0

Harold KoehlerEddie C Chou (1 patent)Harold KoehlerRanko P Crnojevich (1 patent)Harold KoehlerHarold Koehler (1 patent)Eddie C ChouEddie C Chou (16 patents)Ranko P CrnojevichRanko P Crnojevich (10 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Amax Incorporated (1 from 207 patents)


1 patent:

1. 3989509 - Catalytic hydrogen reduction of metals from solutions

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
1/19/2026
Loading…