Growing community of inventors

Chicago, IL, United States of America

Martin J Simpson

Average Co-Inventor Count = 1.50

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 = 13

Martin J SimpsonWilliam J Simpson (2 patents)Martin J SimpsonMartin J Simpson (3 patents)William J SimpsonWilliam J Simpson (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Claymax Corporation (2 from 6 patents)

2. Other (1 from 832,812 patents)


3 patents:

1. 8119025 - Anti-icing composition

2. 5654064 - Clay liner for steep slopes

3. 5564864 - Clay liner for steep slopes

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as of
12/20/2025
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