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Tucson, AZ, United States of America

Charles E Donegan

Average Co-Inventor Count = 3.00

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 = 29

Charles E Donegan ↔ Lawrence S Wittenbrook (2 patents)Charles E Donegan ↔ John E Quinn (2 patents)Charles E DoneganCharles E Donegan (2 patents)Lawrence S WittenbrookLawrence S Wittenbrook (4 patents)John E QuinnJohn E Quinn (3 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Betz Laboratories, Inc. (2 from 577 patents)


2 patents:

1. 4191655 - Dewatering composition

2. 4156649 - Dewatering ore concentrates with branched alkyl ethoxylated alcohol

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as of
12/21/2025
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