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Concord, CA, United States of America

John C Van Herrtum

Average Co-Inventor Count = 2.00

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

John C Van Herrtum ↔ Theodore W Holmsen (1 patent)John C Van HerrtumJohn C Van Herrtum (1 patent)Theodore W HolmsenTheodore W Holmsen (7 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. The Dow Chemical Company (1 from 7,680 patents)


1 patent:

1. 4687509 - N,N,N-tributyl-(3-hydroxybenzyl)ammonium salts and a method for

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