Inventor
MARKELL CRAIG G
US23 patents
⚠️ This page may combine multiple inventors who share the name “MARKELL CRAIG G”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MINNESOTA MINING & MFG
19 patentsUS5328758AJul 12, 1994
Particle-loaded nonwoven fibrous article for separations and purifications
MINNESOTA MINING & MFG173 citations99
US5071610ADec 10, 1991
Method of making a controlled pore composite polytetrafluoroethylene
MINNESOTA MINING & MFG129 citations98
US5738790AApr 14, 1998
Composite membranes for solid phase extractions and reactions
MINNESOTA MINING & MFG37 citations96
US5635060AJun 3, 1997
Composite membranes for solid phase extractions and reactions
MINNESOTA MINING & MFG40 citations96
US5595649AJan 21, 1997
Particle-loaded nonwoven fibrous article for separations and purifications
MINNESOTA MINING & MFG70 citations96
US5529686AJun 25, 1996
Composite membranes for solid phase extractions and reactions
MINNESOTA MINING & MFG36 citations96
US5415779AMay 16, 1995
Particle-loaded nonwoven fibrous article for separations and purifications
MINNESOTA MINING & MFG66 citations96
US5207915AMay 4, 1993
Separation method using controlled pore composite polytetrafluoroethylene article
MINNESOTA MINING & MFG59 citations96
US5279742AJan 18, 1994
Solid phase extraction medium
MINNESOTA MINING & MFG89 citations94
US5639372AJun 17, 1997
Composite membranes for solid phase extractions and reactions
MINNESOTA MINING & MFG22 citations93
US5403489AApr 4, 1995
Solid phase extraction method and apparatus
MINNESOTA MINING & MFG31 citations93
US5616407AApr 1, 1997
Self-wettable solid phase extraction medium
MINNESOTA MINING & MFG28 citations92
US5248428ASep 28, 1993
Article for separations and purifications and method of controlling porosity therein
MINNESOTA MINING & MFG48 citations92
US5238621AAug 24, 1993
Method of controlling porosity in a composite article
MINNESOTA MINING & MFG40 citations92
US5147539ASep 15, 1992
Controlled pore composite polytetrafluoroethylene article
MINNESOTA MINING & MFG53 citations92
USRE36811EAug 8, 2000
Solid phase extraction medium
MINNESOTA MINING & MFG21 citations90
US5618438AApr 8, 1997
Method of isolating an analyte using a solid phase extraction medium
MINNESOTA MINING & MFG31 citations88
US5340746AAug 23, 1994
Composite reactive articles for the determination of cyanide
MINNESOTA MINING & MFG15 citations82
US5470532ANov 28, 1995
Composite reactive articles for the determination of cyanide
MINNESOTA MINING & MFG12 citations73
3M INNOVATIVE PROPERTIES CO
3 patentsUS9519916B2Dec 13, 2016
System and method for concurrently conducting cause-and-effect experiments on content effectiveness and adjusting content distribution to optimize business objectives
3M INNOVATIVE PROPERTIES CO6 citations84
US6270609B1Aug 7, 2001
Hard disk drive filter
3M INNOVATIVE PROPERTIES CO18 citations82
US7393129B2Jul 1, 2008
Optical film assemblies and methods of making same
3M INNOVATIVE PROPERTIES CO0 citations51