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John C. Smeltzer

3M: 4 patents #3,441 of 11,543Top 30%
📍 Woodbury, MN: #695 of 1,562 inventorsTop 45%
🗺 Minnesota: #15,886 of 52,454 inventorsTop 35%
Overall (All Time): #1,272,590 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6391182 Electrochemical fluorination using interrupted current Charles F. Kolpin 2002-05-21
6267865 Electrochemical fluorination using interrupted current Stephen D. Polson, Jeffrey C. Spangler, Eric N. Wallace, Charles F. Kolpin, Ludmila M. Groubina +3 more 2001-07-31
5387323 Process for preparing fluorochemicals Richard M. Minday, Thomas M. Barrett, Charles F. Kolpin 1995-02-07
5322597 Bipolar flow cell and process for electrochemical fluorination William V. Childs, Frank W. Klink, Jeffrey C. Spangler 1994-06-21