Klaus Nickisch
52Patents
7h-index
62Co-inventors
75Inventor score
Filing activity: Nov 3, 1981 → Sep 14, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8222237B2 | Progestational 3-(6,6-ethylene-17B-hydroxy-3-oxo-17A-pregna-4-ene-17A-yl)propionic acid G-lactones | Chemistry; Metallurgy | 53 | Active |
| US5386028A | Process for the production of N-.beta.-hydroxyalkyl-tri-N-carboxyalkyl-1,4,7,10-tetraazacyclododecane and N-.beta.-hydroxyalkyl-tri-N-carboxyalkyl-1,4,8,11-tetraazacyclotetradeca ne derivatives and their metal complexes | Chemistry; Metallurgy | 24 | Expired |
| US6121465A | Process for production drospirenone and intermediate products of the process | Chemistry; Metallurgy | 14 | Expired |
| US4804662A | Substituted 4-(1H-imidazol-1-yl)benzamides as antiarrhythmic agents | Chemistry; Metallurgy | 12 | Expired |
| US5569661A | Process for the production of b-carbolines | Human Necessities | 10 | Expired |
| US4614616A | Process for preparing 3.beta.7.beta.-dihydroxy-.DELTA..sup.5 -steroids | Chemistry; Metallurgy | 8 | Expired |
| US4891365A | 17-Substituted estradienes and estratrienes | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6933395B1 | PROCESSING FOR PRODUCING OF DROSPIRENONE (6β, 7β, 15β, 16β-DIMETHYLENE-3-OXO-17α-PREGN-4-EN-21, 17-CARBOLACTONE, DRSP) AS WELL AS 7α-(3-HYDOXY-1-PROPLY)-6β, 7β; 15β, 16β-DIMETHYLENE-5β-ANDROSTANE-3β, 5,17β-TRIOL(ZK 92836) AND 6β, 7β; 15β, 16β-DIMETHYLENE-5β-HYDROXY | Chemistry; Metallurgy | 7 | Expired |
| US5051423A | Derivatized alkanolamines as cardiovascular agents | Chemistry; Metallurgy | 6 | Expired |
| US4457925A | Androstane derivatives, process for their production, and pharmaceutical preparations containing them | Chemistry; Metallurgy | 6 | Expired |
| US4416985A | Process for preparing 3.beta.,7.beta.-dihydroxy-.DELTA..sup.5 -steroids | Chemistry; Metallurgy | 5 | Expired |
| US4450107A | 7.alpha.-Alkoxycarbonyl-15.beta.,16.beta.-methylene-4-androstenes, process for the preparation thereof, and use thereof as medicinal agents | Human Necessities | 5 | Expired |
| US4920116A | N-(aminoalkyl)-substituted(N or C alkyl)-aryl-4(methylsulfonylamino)benzamides | Physics | 5 | Expired |
| US5733522A | Derivatized DTPA complexes, pharmaceutical agents containing these compounds, their use and process for their production | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4559331A | 7.alpha.-Substituted 3-oxo-17.alpha.-pregn-4-ene-21,17-carbolactones, process for their production, and pharmaceutical preparations containing same | Chemistry; Metallurgy | 4 | Expired |
| US4587235A | Novel androstane derivatives, process for their production, and pharmaceutical preparations containing them | Chemistry; Metallurgy | 4 | Expired |
| US5744616A | Process for the production of 1,4,7,10-tetraazacyclododecane and its derivatives | Chemistry; Metallurgy | 4 | Expired |
| US4789668A | 1.alpha.,7.alpha.-dithio-substituted spirolactones, processes for their preparation, and their use as medicines | Chemistry; Metallurgy | 3 | Expired |
| US4868166A | 2,2:6,6-diethylen-3-oxo-17alpha-pregn-4-ene-21,17alpha-carbolactones, process for their production & pharmaceutical preparations containing them | Chemistry; Metallurgy | 3 | Expired |
| US4851526A | 1-(4-Substituted phenyl)-1H-imidazoles compounds | Chemistry; Metallurgy | 3 | Expired |
| US6046322A | Process for the production of fludarabine-phosphate lithium, sodium, potassium, calcium and magnesium salts and purification process for the production of fludarabine-phosphate and fludarabine-phosphate with a purity of at least 99.5% | Chemistry; Metallurgy | 3 | Expired |
| US4904462A | Multiply-tritiated steroidal-20,17-spirolactones and their use as tracer compounds | Human Necessities | 3 | Expired |
| US9745338B2 | Pro-drug forming compounds | Chemistry; Metallurgy | 2 | Active |
| US4542024A | 15,16 -Methylene-17.alpha.-pregna-4,6-diene-21-carboxylic acid salts, pharmaceutical preparations containing them and a process for their production | Human Necessities | 2 | Expired |
| US4500522A | 7.alph a.-Acylthio-15,16-methylene-3-oxo-17.alpha.-pregna-1,4-diene-21,17-carbol actones, their preparation and use as medicinal agents | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.