Growing community of inventors

Allegan, MI, United States of America

David H Steffen

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 = 27

David H Steffen ↔ George Spector (1 patent)David H SteffenDavid H Steffen (1 patent)George SpectorGeorge Spector (695 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (1 from 832,891 patents)


1 patent:

1. 5566418 - Back hand

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