Inventor
OLSON DAVID A
34 patents
⚠️ This page may combine multiple inventors who share the name “OLSON DAVID A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OLSON DAVID A
8 patentsUS5219468AJun 15, 1993
Method for dewatering using addition of water to facilitate material movement
OLSON DAVID A24 citations92
US4897194AJan 30, 1990
Liquid separating apparatus
OLSON DAVID A35 citations92
US7815876B2Oct 19, 2010
Reactor pump for catalyzed hydrolytic splitting of cellulose
OLSON DAVID A10 citations84
US7815741B2Oct 19, 2010
Reactor pump for catalyzed hydrolytic splitting of cellulose
OLSON DAVID A15 citations84
US4140443AFeb 20, 1979
Manure handling system
OLSON DAVID A23 citations82
US5030069AJul 9, 1991
Material moving pump
OLSON DAVID A9 citations73
US4322023AMar 30, 1982
Material moving apparatus
OLSON DAVID A12 citations73
US4407408AOct 4, 1983
Feed conveyor
OLSON DAVID A5 citations62
MINNESOTA MINING & MFG
7 patentsUS5643507AJul 1, 1997
Filter media having an undulated surface
MINNESOTA MINING & MFG38 citations96
US5641555AJun 24, 1997
Cup-shaped filtration mask having an undulated surface
MINNESOTA MINING & MFG60 citations96
US5593769AJan 14, 1997
Polyurethane pad covering for gel filled articles
MINNESOTA MINING & MFG41 citations96
US5658640AAug 19, 1997
Electret filter media having an undulated surface
MINNESOTA MINING & MFG29 citations93
US5658641AAug 19, 1997
Filter media haing an undulated surface
MINNESOTA MINING & MFG29 citations93
US5360654ANov 1, 1994
Sorbent articles
MINNESOTA MINING & MFG32 citations91
US5669797ASep 23, 1997
Polyurethane pad covering
MINNESOTA MINING & MFG12 citations73
3M INNOVATIVE PROPERTIES CO
5 patentsUS7757811B2Jul 20, 2010
Multilayer articles having acoustical absorbance properties and methods of making and using the same
3M INNOVATIVE PROPERTIES CO77 citations98
US6667254B1Dec 23, 2003
Fibrous nonwoven webs
3M INNOVATIVE PROPERTIES CO63 citations94
US7476632B2Jan 13, 2009
Fibrous nonwoven web
3M INNOVATIVE PROPERTIES CO38 citations92
US6371749B2Apr 16, 2002
Apparatus for making dimensionally stable nonwoven fibrous webs
3M INNOVATIVE PROPERTIES CO19 citations92
US7686132B2Mar 30, 2010
Porous membrane
3M INNOVATIVE PROPERTIES CO7 citations66
(unassigned)
3 patentsCUMMINS ENGINE CO INC
3 patentsUS5771861AJun 30, 1998
Apparatus and method for accurately controlling fuel injection flow rate
CUMMINS ENGINE CO INC93 citations94
US5024200AJun 18, 1991
Viscosity responsive pressure regulator and timing control tappet system incorporating the same
CUMMINS ENGINE CO INC17 citations69
US5411003AMay 2, 1995
Viscosity sensitive auxiliary circuit for hydromechanical control valve for timing control of tappet system
CUMMINS ENGINE CO INC11 citations66
TROJAN TECHN INC
3 patentsUS6500346B1Dec 31, 2002
Fluid treatment device and method for treatment of fluid
TROJAN TECHN INC57 citations92
US7031849B2Apr 18, 2006
On-line device for predicting at least one fluid flow parameter in a process
TROJAN TECHN INC3 citations61
US6564157B2May 13, 2003
On-line device for predicting at least one fluid flow parameter in a process
TROJAN TECHN INC3 citations61