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USPTO Patent Rankings Data through Dec 31, 2025
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Marilyn Richards — 1 Patent

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Palatka, FL: #19 of 50 inventorsTop 40%
Florida: #33,989 of 67,251 inventorsTop 55%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Marilyn Richards has been granted 1 US patent while listed as an inventor at Unknown. All of these patents were granted in 1990. Marilyn Richards ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Marilyn Richards in Palatka, FL, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4903446 Prestressed plastic foam structural member Jack Richards 1990-02-27