RD

Robert Allen Dushek

DC Donaldson Company: 22 patents #50 of 695Top 8%
📍 Richfield, MN: #11 of 268 inventorsTop 5%
🗺 Minnesota: #3,093 of 52,454 inventorsTop 6%
Overall (All Time): #198,176 of 4,157,543Top 5%
22
Patents All Time

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDate
7607289 Apparatus for emissions control, systems, and methods Steve Schmeichel, Fred Schmidt, Julian A. Imes 2009-10-27
7278259 Apparatus for emissions control, system, and methods Steve Schmeichel, Fred Schmidt, Julian A. Imes 2007-10-09
7257942 Apparatus for emissions control, systems, and methods Steve Schmeichel, Fred Schmidt, Julian A. Imes 2007-08-21
7182804 Aerosol separator; and method Steven Scott Gieseke, Carolyn J. Finnerty 2007-02-27
7081145 Aerosol separator; and method Steven Scott Gieseke 2006-07-25
6852148 Aerosol separator and method Steven Scott Gieseke, Carolyn J. Finnerty 2005-02-08
6758873 Aerosol separator and method Steven Scott Gieseke 2004-07-06
D476725 Coalescer filter having baffle plate Jan Cappuyns, Carolyn J. Finnerty 2003-07-01
6540801 Aerosol separator; and method Steven Scott Gieseke 2003-04-01
6530969 Aerosol separator; and method Steven Scott Gieseke, Carolyn J. Finnerty 2003-03-11
6355076 Aerosol separator; and method Steven Scott Gieseke 2002-03-12
6290739 Aerosol separator; and method Steven Scott Gieseke, Carolyn J. Finnerty 2001-09-18
D440293 Coalescer filter Steven Scott Gieseke, Wayne R. W. Bishop 2001-04-10
D439962 Coalescer filter element with screen Steven Scott Gieseke 2001-04-03
D439963 Panel filter Steven Scott Gieseke, Peter J. Murray 2001-04-03
D438214 Filter element Steven Scott Gieseke 2001-02-27
6187073 Air cleaner; aerosol separator; and method Steven Scott Gieseke 2001-02-13
6171355 Aerosol separator; and method Steven Scott Gieseke 2001-01-09
6143049 Aerosol separator; and method Steven Scott Gieseke 2000-11-07
D420117 Coalescer filter with rear plate Steven Scott Gieseke, Jeffrey J. Ivarson 2000-02-01
D410010 Coalescer filter Steven Scott Gieseke, Jeffrey J. Ivarson 1999-05-18
5853439 Aerosol separator and method Steven Scott Gieseke 1998-12-29