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James G. Spencer

VU Vector Unlimited: 3 patents #3 of 17Top 20%
FR Freund-Vector: 2 patents #4 of 12Top 35%
📍 Marion, IA: #115 of 453 inventorsTop 30%
🗺 Iowa: #3,091 of 15,303 inventorsTop 25%
Overall (All Time): #1,011,237 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
D865011 Roller compactor machine James A. Clark, Jeffrey Edward Fehlhafer, Masaaki Kubota, Kyle Andrew Burlage 2019-10-29
8893895 Cartridge filter assembly James A. Clark, James G. Frizzell 2014-11-25
D598215 Fluid bed machine with storage cabinet Aaron K. Basten 2009-08-18
D583619 Granulation/mixing machine with storage cabinet Aaron K. Basten 2008-12-30
6629003 Batch processing control system recipe management and batch information system James G. Frizzell, Gregory R. Smith 2003-09-30