JI

Jeffrey J. Ivarson

DC Donaldson Company: 11 patents #118 of 695Top 20%
VS Varitronic Systems: 2 patents #4 of 16Top 25%
📍 San Rafael, CA: #75 of 869 inventorsTop 9%
🗺 California: #40,325 of 386,348 inventorsTop 15%
Overall (All Time): #327,946 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
6474524 Backpack apparatus Henrietta L. Ivarson, Ian C. Ivarson 2002-11-05
D462117 Air cleaner cover Steven Scott Gieseke, Peter J. Murray, Gary J. Rocklitz, Junhui Liu 2002-08-27
D440645 Body member for a housing for an air cleaner Paul Coulonvaux, Johan G. Dewit 2001-04-17
D437110 Backpack Henrietta L. Ivarson, Ian C. Ivarson 2001-02-06
D421110 Body member for a housing for an air cleaner Paul Coulonvaux, Johan G. Dewit 2000-02-22
D420117 Coalescer filter with rear plate Steven Scott Gieseke, Robert Allen Dushek 2000-02-01
D416308 Safety filter element Dennis E. Ward, Kevin Schrage, Paul Coulonvaux, Johan G. Dewit 1999-11-09
D414544 Filter element Dennis E. Ward, Kevin Schrage, Paul Coulonvaux, Johan G. Dewit 1999-09-28
D412567 Housing for an air cleaner Dennis E. Ward, Kevin Schrage, Paul Coulonvaux, Johan G. Dewit 1999-08-03
D412568 Cover for a housing for an air cleaner Dennis E. Ward, Kevin Schrage, Paul Coulonvaux, Johan G. Dewit 1999-08-03
D410010 Coalescer filter Steven Scott Gieseke, Robert Allen Dushek 1999-05-18
D407475 Body member for a housing for an air cleaner Paul Coulonvaux, Johan G. Dewit 1999-03-30
D401306 Filter element Dennis E. Ward, Kevin Schrage, Paul Coulonvaux, Johan G. Dewit 1998-11-17
D314584 Combined thermal lettering and page layout printer Courtney Doree Reeser, Daniel Riley 1991-02-12
D307296 Printer Daniel Riley 1990-04-17