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Ronald C. Hoffmann — 2 Patents

CECambridge Engineering: 2 patents #7 of 18Top 40%
Maryland Heights, MO: #98 of 213 inventorsTop 50%
Missouri: #8,937 of 23,789 inventorsTop 40%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Ronald C. Hoffmann has been granted 2 US patents while listed as an inventor at Cambridge Engineering. The first was granted in 1981 and the most recent in October 1987. Ronald C. Hoffmann ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Ronald C. Hoffmann in Maryland Heights, MO, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4700688 Ventilating hood James A. Searcy, Roger O. Zoellner 1987-10-20
4286572 Ventilating hood James A. Searcy, Roger O. Zoellner 1981-09-01

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