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Browse by Date |
| Patent Number |
Title Of Patent |
Date Issued |
| 4925960 |
Preparation of d-.alpha.-tocopherol from natural intermediates |
May. 15, 1990 |
| 4925959 |
Dioxane adduct of 2-hydroxynaphthalene-6-carboxylic acid and process for the preparation thereof |
May. 15, 1990 |
| 4925958 |
Process for the preparation of N-alkoxycarbonylmethyl-N-formyl-amines and -anilines |
May. 15, 1990 |
| 4925957 |
Process for producing pyromellitic dianhydride |
May. 15, 1990 |
| 4925956 |
Novel process for manufacturing optically active carbacyclin intermediates |
May. 15, 1990 |
| 4925955 |
Resolution of (1S,4R)-1-ethyl-1,3,4,9-tetrahydro-4-(phenylmethyl) pyrano[3,4-B]indole-1-acetic a... |
May. 15, 1990 |
| 4925954 |
Vat dye based on flouranthene |
May. 15, 1990 |
| 4925953 |
Imidazole derivative |
May. 15, 1990 |
| 4925952 |
Process for preparing 1-hydroxyalkyl-5-nitroimidazoles |
May. 15, 1990 |
| 4925951 |
Process for preparing 1-hydroxyalkyl-2-methyl-5-nitroimidazoles |
May. 15, 1990 |
| 4925950 |
Process for preparing 1-hydroxyalkyl-5-nitroimidazole |
May. 15, 1990 |
| 4925949 |
Process for preparing 1-alkyl-5-nitroimidazoles |
May. 15, 1990 |
| 4925948 |
2 amino 5 chloro thiazol-4-yl cycloalkenoxy imino acetic derivatives |
May. 15, 1990 |
| 4925947 |
Precursors to herbicidal pyridine compounds |
May. 15, 1990 |
| 4925946 |
Preparation of pyrazolo(5,1-B)quinazolones |
May. 15, 1990 |
| 4925945 |
Certain -N-(amino benzoyl)-N'-(pyridyldithioalkanoyl)-hydrazines and derivatives thereof |
May. 15, 1990 |
| 4925944 |
Process for the preparation of o-carboxypyridyl- and o-carboxyquinolylimidazolinones |
May. 15, 1990 |
| 4925943 |
2-(2-aminobenzyl or 2-nitrobenzyl)-1,2,3,4-tetrahydroisoquinoline derivatives |
May. 15, 1990 |
| 4925942 |
Preparation of quinuclidine-3-methanol |
May. 15, 1990 |
| 4925941 |
Process for the manufacture of a 2,3-dihydroxyquinoxaline, and 2,3-dihydroxyquinoxalines thus ob... |
May. 15, 1990 |
| 4925940 |
Preparation of cyclic N,N'-dimethylureas |
May. 15, 1990 |
| 4925939 |
6,7-dihydropyrrol[3,4-c]pyrido[2,3-d]pyrimidine derivatives |
May. 15, 1990 |
| 4925938 |
N-2,2-dimethyl-2-(2-hydroxy-alkylphenyl) heterocycles and stabilized compositions |
May. 15, 1990 |
| 4925937 |
Diazapyrene compounds useful for photocleavage of nucleic acids |
May. 15, 1990 |
| 4925936 |
Recovery of nitric acid and sulfuric acids in production of beta HMX |
May. 15, 1990 |
| 4925935 |
Methods for the manufacture of (1R,5S,6S)-2-[(6,7-dihydro-5H-pyrazolo[1,2-a][1,2,4]triazolium-6-... |
May. 15, 1990 |
| 4925934 |
Process for preparation of beta-lactam derivatives |
May. 15, 1990 |
| 4925933 |
Method of controlling the epimeric distribution in the preparation of 16,17-acetals of pregnane ... |
May. 15, 1990 |
| 4925932 |
Preparation of double sulfate salt of desoxyfructosyl serotonin and creatinine |
May. 15, 1990 |
| 4925931 |
N-homocysteine thiolactonyl retinamido cobalamin and methods of use thereof |
May. 15, 1990 |
| 4925930 |
Synthesis and anti-leukemic activity of alkyl-1-(.beta.-D-ribofuranosyl)[1,2,4]triazole-3-carbox... |
May. 15, 1990 |
| 4925929 |
Glucopyranose derivatives |
May. 15, 1990 |
| 4925928 |
Reactive dyes containing vinylsulfonylalkylamino bound to a bis-(triazinylamino)-benzene group |
May. 15, 1990 |
| 4925927 |
Reactive dyes containing a vinylsulfonylaminocarbonyl group bound to bis-(triazenylamino)-benzen... |
May. 15, 1990 |
| 4925926 |
Preparation of cationic azo or hydrazone dyes in which the alkylation and the separation of the ... |
May. 15, 1990 |
| 4925925 |
Radioactive rhenium ligated to 2-hydroxy isobutyric acid and method of use |
May. 15, 1990 |
| 4925924 |
Biocompatible synthetic and collagen compositions having a dual-type porosity for treatment of w... |
May. 15, 1990 |
| 4925923 |
Lignin having chemically bound sulfur and phosphorus groups mainly as thiophosphate, using phosp... |
May. 15, 1990 |
| 4925922 |
Potentiation of cytotoxic conjugates |
May. 15, 1990 |
| 4925921 |
Products of coupling biological substances by covalent bonds |
May. 15, 1990 |
| 4925920 |
Immunosuppressive polypeptides |
May. 15, 1990 |
| 4925919 |
Purified interleukin 2 |
May. 15, 1990 |
| 4925918 |
Process for preparing polyketones with boron anion |
May. 15, 1990 |
| 4925917 |
Polymerization of olefin/carbon monoxide with catalyst composition comprising halogen dicarboxyl... |
May. 15, 1990 |
| 4925916 |
Amide and/or imide containing polymers and monomers for the preparation thereof |
May. 15, 1990 |
| 4925915 |
Polymers prepared from 4,4'-bis(2-(amino(halo) phenoxyphenyl) hexafluoroisopropyl) diphenyl ethe... |
May. 15, 1990 |
| 4925914 |
Catalytic suspension/dispersion preparation of polyamides from polyamide forming salt |
May. 15, 1990 |
| 4925913 |
Heat-resistant unsaturated polyester |
May. 15, 1990 |
| 4925912 |
Auto-photocrosslinkable copolyimides and polyimide compositions |
May. 15, 1990 |
| 4925911 |
Moldable/extrudable thermotropic aromatic copolyesteramides |
May. 15, 1990 |
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