Growing community of inventors

Medina, OH, United States of America

Donald R Whiteman

Average Co-Inventor Count = 1.33

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 = 17

Donald R WhitemanDale H Guthrie (1 patent)Donald R WhitemanDonald R Whiteman (2 patents)Dale H GuthrieDale H Guthrie (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Rpc, Inc. (2 from 38 patents)


2 patents:

1. 4093090 - Spreader for lifting containers

2. 4014447 - Grappler spreader with overhead grappling arm storage

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as of
12/16/2025
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