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Ralph E. Allison — 2 Patents

BMBmi: 2 patents #1 of 15Top 7%
Wheelersburg, OH: #4 of 11 inventorsTop 40%
Ohio: #30,551 of 73,341 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Ralph E. Allison has been granted 2 US patents while listed as an inventor at Bmi. The first was granted in 1980 and the most recent in June 1981. Ralph E. Allison ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Ralph E. Allison in Wheelersburg, OH, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4272020 Gunning apparatus for in situ spraying of refractory material — 1981-06-09
4211367 Gunning apparatus for in situ spraying of refractory material — 1980-07-08

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