Growing community of inventors

Elmhurst, IL, United States of America

Roger Kopanski

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 = 77

Roger KopanskiBruce J Griffin (1 patent)Roger KopanskiRoger Kopanski (1 patent)Bruce J GriffinBruce J Griffin (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Mcdonald's Corporation (1 from 13 patents)


1 patent:

1. 4764120 - Student response system

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