Growing community of inventors

Spokane, WA, United States of America

George E Ellefsen

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 = 9

George E Ellefsen ↔ Lloyd Seibert (1 patent)George E EllefsenGeorge E Ellefsen (1 patent)Lloyd SeibertLloyd Seibert (2 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. American Sign and Indicator Corporation (1 from 7 patents)


1 patent:

1. 4389804 - Matrix display

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1/12/2026
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