Growing community of inventors

Toronto, Canada

Joseph Bartel

Average Co-Inventor Count = 4.00

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 = 72

Joseph Bartel ↔ Edward Graham Zwartz (2 patents)Joseph Bartel ↔ Raj D Patel (2 patents)Joseph Bartel ↔ Michael A Hopper (2 patents)Joseph BartelJoseph Bartel (2 patents)Edward Graham ZwartzEdward Graham Zwartz (172 patents)Raj D PatelRaj D Patel (144 patents)Michael A HopperMichael A Hopper (61 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Xerox Corporation (2 from 24,190 patents)


2 patents:

1. 6656658 - Magnetite toner processes

2. 6656657 - Toner processes

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as of
12/11/2025
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