Growing community of inventors

Mounds View, MN, United States of America

David H Jeffrey

Average Co-Inventor Count = 5.00

ph-index = 2

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 = 57

David H JeffreyDavid R Wulfman (2 patents)David H JeffreyArthur Guy Erdman (2 patents)David H JeffreyUlrich A Bonne (2 patents)David H JeffreyJames Aj Holroyd (1 patent)David H JeffreyJames A J Holroyd (1 patent)David H JeffreyDavid H Jeffrey (2 patents)David R WulfmanDavid R Wulfman (59 patents)Arthur Guy ErdmanArthur Guy Erdman (52 patents)Ulrich A BonneUlrich A Bonne (2 patents)James Aj HolroydJames Aj Holroyd (2 patents)James A J HolroydJames A J Holroyd (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Micro-Medical Devices, Inc. (2 from 17 patents)


2 patents:

1. 6306083 - Integrated illumination and imaging system

2. 6013025 - Integrated illumination and imaging system

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1/10/2026
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