Growing community of inventors

Grand Rapids, MI, United States of America

Matthew D Berg

Average Co-Inventor Count = 3.00

ph-index = 3

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 = 40

Matthew D Berg ↔ Ernest H Brumbaugh (3 patents)Matthew D Berg ↔ Lane A Duvel (3 patents)Matthew D BergMatthew D Berg (3 patents)Ernest H BrumbaughErnest H Brumbaugh (16 patents)Lane A DuvelLane A Duvel (7 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Access Business Group International LLC (3 from 518 patents)


3 patents:

1. 8999306 - Hair treatment compositions

2. 8697040 - Hair treatment compositions

3. 8263053 - Hair treatment compositions

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as of
12/7/2025
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