Growing community of inventors

Rochester Hills, MI, United States of America

Darrell Johnson

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 = 24

Darrell JohnsonDeepak G Bhat (2 patents)Darrell JohnsonStephen L Bennett (2 patents)Darrell JohnsonDarrell Johnson (2 patents)Deepak G BhatDeepak G Bhat (9 patents)Stephen L BennettStephen L Bennett (5 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Valenite, Inc. (2 from 90 patents)


2 patents:

1. 5713133 - Methods of preparing cemented metal carbide substrates for deposition of

2. 5560839 - Methods of preparing cemented metal carbide substrates for deposition of

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