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Ralph Stephen Johnson — 1 Patent

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Ridge, NY: #20 of 38 inventorsTop 55%
New York: #67,828 of 115,490 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Ralph Stephen Johnson has been granted 1 US patent while listed as an inventor at Unknown. All of these patents were granted in 1990. Ralph Stephen Johnson ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Ralph Stephen Johnson in Ridge, NY, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4929224 Plastic bag forming machine Violet Hanson 1990-05-29

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