Inventor
STEFKOVICH JOSEPH
US3 patents
Patents
3 patentsUS5368729ANov 29, 1994
Solid phase extraction device
WHATMAN INC99 citations92
US5849249ADec 15, 1998
Solid phase extraction apparatus for enhanced recovery and precision
WHATMAN INC54 citations91
US6124012ASep 26, 2000
Solid phase extraction disk and apparatus for enhanced recovery and precision
WHATMAN INC17 citations88