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Alfred P. Dufour

UE US EPA: 3 patents #6 of 127Top 5%
📍 East Liverpool, OH: #7 of 49 inventorsTop 15%
🗺 Ohio: #18,857 of 73,341 inventorsTop 30%
Overall (All Time): #1,260,603 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7148033 Method for detection for total coliforms and E. coli Kristen P. Brenner, Clifford C. Rankin, Yvette R. Roybal-McKenna 2006-12-12
6670145 Method for detection of total coliforms and E. coli Kristen P. Brenner, Clifford C. Rankin, Yvette R. Roybal-McKenna 2003-12-30
6306621 Membrane filter agar medium for simultaneous detection of total coliforms and E. coli Kristen P. Brenner, Clifford C. Rankin, Yvette R. Roybal-McKenna 2001-10-23
6063590 Membrane filter agar medium containing two enzyme substrates used for the simultaneous detection of total coliforms and E. coli. Kristen P. Brenner, Clifford C. Rankin, Yvette R. Roybal 2000-05-16