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Patent Number Title Of Patent Date Issued
4921969 Method for the preparation of imidazoles May. 1, 1990
4921968 Pyrazoloazoleazomethine dyes May. 1, 1990
4921967 Novel alkylcycloalkyl triazolylmethyl ketones as fungicide intermediates May. 1, 1990
4921966 Process for the preparation of liquid mixtures of alkylated 2-(2-hydroxyphenyl)benzotriazoles May. 1, 1990
4921965 Method of producing alkyl substituted 5-amidotetrazoles May. 1, 1990
4921964 Process for the preparation of stilbene derivatives May. 1, 1990
4921963 Platinum complexes with one radiosensitizing ligand May. 1, 1990
4921962 Process for preparing N-hydrocarbyloxy derivatives of sterically hindered amines May. 1, 1990
4921961 2-Carbamoyl-3-quinolinecarboxylic acids and salts as intermediates for the preparation of herbic... May. 1, 1990
4921960 Quinoline thioethers May. 1, 1990
4921959 Anthraquinone compounds and polarizing film containing the same May. 1, 1990
4921958 Piperazinylalkylcarboxylic acid adamantylamides May. 1, 1990
4921957 Novel fluorinated compounds and process for preparing them May. 1, 1990
4921956 Hydrophilic modifier monomers May. 1, 1990
4921955 Process for the synthesis of 1-substituted imidazole-5-carboxylic acids and carboxylic acid deri... May. 1, 1990
4921954 Process for the preparation of cephem compounds May. 1, 1990
4921953 Cephalosporin derivatives May. 1, 1990
4921952 Nucleic acid isolation process May. 1, 1990
4921951 Nucleoside-phospholipid conjugate May. 1, 1990
4921950 Preparation of 3'azido-3-'-deoxythymidine May. 1, 1990
4921949 Process for making quaternary chitosan derivatives for cosmetic agents May. 1, 1990
4921948 Sialosyl glyceride and process for producing the same May. 1, 1990
4921947 Process for preparing macrolide derivatives May. 1, 1990
4921946 Hydrocarbon conversion process May. 1, 1990
4921945 Disazo dyes containing an acetoacetabukube coupling component and a quaternized aminoalkylene am... May. 1, 1990
4921944 Method of pharmaceutic production May. 1, 1990
4921942 Organometallic compounds May. 1, 1990
4921941 Orally active antiandrogens May. 1, 1990
4921940 Process for the purification of Ti containing polycarbonate with solvent, complexing agent and w... May. 1, 1990
4921939 Sweetening agents May. 1, 1990
4921938 Catalytic, diluent preparation of poly ketone having unsaturated terminal group May. 1, 1990
4921937 Terpolymer from olefin and carbon monoxide and preparation thereof May. 1, 1990
4921936 Process for destruction of toxic organic chemicals and the resultant inert polymer by-product May. 1, 1990
4921935 Preparation of polyarylene sulphides with ketone or pinacone May. 1, 1990
4921934 Alkali-soluble polymers and process for producing same May. 1, 1990
4921933 Aromatic polyamide molded article having storage modulus May. 1, 1990
4921932 Polyamide resin May. 1, 1990
4921931 Thermosetting resin compositions May. 1, 1990
4921930 Acryloyloxy and methacryloyloxy group-containing condensation polymers May. 1, 1990
4921929 Process for the synthesis of a copolyester adhesive resin May. 1, 1990
4921928 Piezoelectric polymer materials from epoxy resins and polytetramethyleneoxide-di-p-aminobenzoate May. 1, 1990
4921927 Sulfide containing aliphatic epoxy resins May. 1, 1990
4921926 Curable polyorganosiloxane composition May. 1, 1990
4921925 Organoborosilazane polymers May. 1, 1990
4921924 Isoprene recovery in the butyl rubber process May. 1, 1990
4921923 Ethers of oligomeric phenol-diketone condensation products and a vinyl-benzyl compound May. 1, 1990
4921922 Production of tetrafluoroethylene polymers May. 1, 1990
4921921 Meltable aerobically cured plastic compositions May. 1, 1990
4921920 Process for the polymerization or copolymerization of alpha-olefins in a fluidized bed, in the p... May. 1, 1990
4921919 Method and apparatus for minimizing polymer agglomerate or lump formation in a gas-phase polypro... May. 1, 1990
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