Inventor
COMBS DONALD W
US15 patents
⚠️ This page may combine multiple inventors who share the name “COMBS DONALD W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ORTHO PHARMA CORP
13 patentsUS5081242AJan 14, 1992
6-benzoxazinyl- and 6-benzothiazinyl 2,3,4,5-tetrahydropyridazin-3-ones
ORTHO PHARMA CORP30 citations92
US4721784AJan 26, 1988
6-benzoxazinyl-2,3,4,5-tetrahydropyridazin-3-ones
ORTHO PHARMA CORP32 citations92
US5753655AMay 19, 1998
1-arylsulphonyl, arylcarbonyl and arylthiocarbonyl pyridazino derivatives and methods of preparation
ORTHO PHARMA CORP10 citations73
US5684151ANov 4, 1997
1-arylsulphonyl, arylcarbonyl and 1-arylphosphonyl-3-phenyl-1,4,5,6-tetrahydropyridazines
ORTHO PHARMA CORP17 citations73
US5116837AMay 26, 1992
2,9-dihydro-(6 or 7)-(3-oxo-2,3,4,5-tetrahydropyridazinyl)-pyrazolo [4,3-B]-1,4-benzoxazines
ORTHO PHARMA CORP16 citations73
US4766118AAug 23, 1988
6-benzoxazinyl- and 6-benzothiazinyl-2,3,4,5-tetrahydropyridazin-3-ones and pharmaceutical use
ORTHO PHARMA CORP15 citations73
US4745118AMay 17, 1988
Substituted quinazoline-3-oxides providing pharmacological activity
ORTHO PHARMA CORP3 citations62
US4639518AJan 27, 1987
Substituted quinazolinediones
ORTHO PHARMA CORP6 citations62
US5221742AJun 22, 1993
Process for the preparation of 6-(3,4-dihydro-3-oxo-1,4(2h)-benzoxazin-7-yl)-2,3,4,5-tetrahydropyridazin-3-ones
ORTHO PHARMA CORP2 citations61
US4963554AOct 16, 1990
6,7-dimethoxy-1,2-dihydro-2-arylquinazoline-3-oxides
ORTHO PHARMA CORP4 citations58
US4617392AOct 14, 1986
4-alkyl-5,6-methylenedioxy-2-1[H]-quinazolinones useful as cardiotonic agents
ORTHO PHARMA CORP0 citations52
US5030635AJul 9, 1991
6-7-dimethoxy-1,2-dihydro-2-arylquinazoline-3-oxides
ORTHO PHARMA CORP0 citations48
US5326765AJul 5, 1994
2,2,4-trialkyl-1,2-dihydroquinazoline-3-oxides
ORTHO PHARMA CORP0 citations45