Growing community of inventors

Willoughby, OH, United States of America

Robert J Sprafka

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 = 36

Robert J SprafkaRaymond R Tison (1 patent)Robert J SprafkaRoss F Nigro (1 patent)Robert J SprafkaRobert J Sprafka (1 patent)Raymond R TisonRaymond R Tison (3 patents)Ross F NigroRoss F Nigro (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Consolidated Natural Gas Service Company, Inc. (1 from 45 patents)


1 patent:

1. 5949153 - Multi-engine controller

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