Joseph D. Duff — 3 Patents at Flint & Walling

Joseph D. Duff has been granted 3 US patents while listed as an inventor at Flint & Walling. The first was granted in 2020 and the most recent in June 2021. Joseph D. Duff ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Joseph D. Duff in Louisville, KY, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
11035367	Sump pump system with an electronic controller module secured in a sump pump power cord	Eric J. Hansen, Josh Tang, Daniel TANG, Jeff Sloss	2021-06-15
10815209	Recovery of ethylene oxide from sterilization process	Joseph E. Paganessi	2020-10-27
10738020	Recovery of ethylene oxide from sterilization process	Joseph E. Paganessi	2020-08-11

Joseph D. Duff — 3 Patents

Issued Patents All Time

Patent Widget