JE

James K. Elfstrand

DC Donaldson Company: 8 patents #162 of 695Top 25%
📍 Mounds View, MN: #17 of 92 inventorsTop 20%
🗺 Minnesota: #9,275 of 52,454 inventorsTop 20%
Overall (All Time): #664,368 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
6340375 Air cleaner; method and use Rocco A. DePietro, III, Steven A. Carter 2002-01-22
6059851 Air cleaner; method and use Rocco A. DePietro, III, Steven A. Carter 2000-05-09
6015452 Method of servicing an air cleaner and of filtering engine intake air using prefilter arrangements Larry R. Nepsund, Kathleen A. Abrahamson, Thomas A. Boeckermann 2000-01-18
D418592 Air cleaner Rocco A. DePietro, III, Steven A. Carter 2000-01-04
D407808 Filter element having circular sleeve Larry R. Nepsund, Kathleen A. Abrahamson, Thomas A. Boeckermann 1999-04-06
D404807 Filter sleeve Larry R. Nepsund, Kathleen A. Abrahamson, Thomas A. Boeckermann 1999-01-26
5858044 Filter arrangement including removable filter with first and second media secured together Larry R. Nepsund, Kathleen A. Abrahamson, Thomas A. Boeckermann 1999-01-12
D402361 Panel filter construction Larry R. Nepsund, Kathleen A. Abrahamson, Thomas A. Boeckermann 1998-12-08