Growing community of inventors

Lebanon, PA, United States of America

Douglas R Callihan

Average Co-Inventor Count = 4.00

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 = 1

Douglas R Callihan ↔ Jesse M Raver (1 patent)Douglas R Callihan ↔ Charles H Kinloch (1 patent)Douglas R Callihan ↔ Mark A Cassel (1 patent)Douglas R CallihanDouglas R Callihan (1 patent)Jesse M RaverJesse M Raver (1 patent)Charles H KinlochCharles H Kinloch (1 patent)Mark A CasselMark A Cassel (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Cmi International, Inc. (1 from 47 patents)


1 patent:

1. 5358027 - Vacuum-assisted gravity pour casting apparatus

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12/18/2025
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