Growing community of inventors

Bend, OR, United States of America

Charles Greef

Average Co-Inventor Count = 4.00

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 = 0

Charles GreefJennipher Lyn Grudzien (1 patent)Charles GreefJoshua Snider (1 patent)Charles GreefSteven Weaver (1 patent)Charles GreefCharles Greef (1 patent)Jennipher Lyn GrudzienJennipher Lyn Grudzien (9 patents)Joshua SniderJoshua Snider (1 patent)Steven WeaverSteven Weaver (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Grace Bio-labs, Inc. (1 from 8 patents)


1 patent:

1. 9981264 - Nitrocellulose extrusion for porous film strips

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12/20/2025
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