Growing community of inventors

Windsor, CA, United States of America

John Koopman

Average Co-Inventor Count = 3.00

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 = 21

John KoopmanRobert J McMillen (1 patent)John KoopmanRenato Colja (1 patent)John KoopmanJohn Koopman (1 patent)Robert J McMillenRobert J McMillen (58 patents)Renato ColjaRenato Colja (30 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Schukra of North America Co. (1 from 5 patents)


1 patent:

1. 8162398 - Zone lumbar massage system

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