Inventor
FRANK PATRICK M
US7 patents
Patents
7 patentsUS5589063ADec 31, 1996
Column analyzer system and improved chromatograph column for use in the system
HELENA LAB CORP26 citations91
US5228988AJul 20, 1993
Column analyzer system and improved chromatograph column for use in the system
HELENA LAB CORP29 citations91
US5595664AJan 21, 1997
Column analyzer system and improved chromatograph column for use in the system
HELENA LAB CORP11 citations81
US5441645AAug 15, 1995
Column analyzer system and improved chromatograph column for use in the system
HELENA LAB CORP12 citations81
US5358641AOct 25, 1994
Column analyzer system and improved chromatograph column for use in the system
HELENA LAB CORP13 citations81
US5045208ASep 3, 1991
Column analyzer system
HELENA LAB CORP11 citations81
US5207918AMay 4, 1993
Column analyzer system
HELENA LAB CORP2 citations57