Inventor · disambiguated record
Klaus Nickisch
Also filed as: NICKISCH KLAUS
52 granted patents·12 pending applications·382 citations·filing 1981–2020
98Inventor score
Top patents by PatentIndex Score
64 records- 0194US8222237B2Progestational 3-(6,6-ethylene-17B-hydroxy-3-oxo-17A-pregna-4-ene-17A-yl)propionic acid G-lactonesNICKISCH KLAUS·Filed 2009·Granted Jul 17, 2012·52 cites·16 claims
- 0285US6121465AProcess for production drospirenone and intermediate products of the processSCHERING AG·Filed 1997·Granted Sep 19, 2000·49 cites·17 claims
- 0385US5386028AProcess for the production of N-β-hydroxyalkyl-tri-N-carboxyalkyl-1,4,7,10-tetraazacyclododecane and N-β-hydroxyalkyl-tri-N-carboxyalkyl-1,4,8,11-tetraazacyclotetradecane derivatives and their metal complexesSCHERING AG·Filed 1993·Granted Jan 31, 1995·33 cites·16 claims
- 0484US6933395B1PROCESSING 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-HYDROXYSCHERING AG·Filed 2000·Granted Aug 23, 2005·18 cites·6 claims
- 0583US5051423ADerivatized alkanolamines as cardiovascular agentsSCHERING AG·Filed 1988·Granted Sep 24, 1991·20 cites·36 claims
- 0680US4416985AProcess for preparing 3β,7β-dihydroxy-Δ5 -steroidsSCHERING AG·Filed 1981·Granted Nov 22, 1983·19 cites·5 claims
- 0777US4804662ASubstituted 4-(1H-imidazol-1-yl)benzamides as antiarrhythmic agentsSCHERING AG·Filed 1987·Granted Feb 14, 1989·14 cites·14 claims
- 0876US10273263B2Pro-drug forming compoundsEVESTRA INC·Filed 2017·Granted Apr 30, 2019·2 cites·18 claims
- 0976US4614616AProcess for preparing 3β7β-dihydroxy-Δ5 -steroidsSCHERING AG·Filed 1983·Granted Sep 30, 1986·16 cites·7 claims
- 1074US10053485B2Cytotoxic agents that preferentially target leukemia inhibitory factor (LIF) for the treatment of malignancies and as new contraceptive agentsEVESTRA INC·Filed 2016·Granted Aug 21, 2018·2 cites·5 claims
- 1172US9745338B2Pro-drug forming compoundsEVESTRA INC·Filed 2014·Granted Aug 29, 2017·2 cites·11 claims
- 1272US4457925AAndrostane derivatives, process for their production, and pharmaceutical preparations containing themSCHERING AG·Filed 1982·Granted Jul 3, 1984·10 cites·44 claims
- 1368US4906634ANovel N-[4-(aminosubstituted)phenyl]methanesulfonamides and their use as cardiovascular agentsSCHERING AG·Filed 1988·Granted Mar 6, 1990·9 cites·26 claims
- 1468US4789668A1α,7α-dithio-substituted spirolactones, processes for their preparation, and their use as medicinesSCHERING AG·Filed 1986·Granted Dec 6, 1988·15 cites·14 claims
- 1568US2019328656A1Targeted delivery of progestins and estrogens via vaginal ring devices for fertility control and hrt productsEVESTRA INC·Filed 2019·Application pending·0 cites
- 1668US2019328657A1Hormonal contraception using a vaginal ring which releases estriolEVESTRA INC·Filed 2019·Application pending·0 cites
- 1768US2019328658A1Estrogen prodrugs and methods of administering estrogen prodrugsEVESTRA INC·Filed 2019·Application pending·0 cites
- 1866US4920116AN-(aminoalkyl)-substituted(N or C alkyl)-aryl-4(methylsulfonylamino)benzamidesSCHERING AG·Filed 1988·Granted Apr 24, 1990·7 cites·24 claims
- 1965US10738075B2Cytotoxic agents that preferentially target leukemia inhibitory factor (LIF) for the treatment of malignancies and as new contraceptive agentsEVESTRA INC·Filed 2018·Granted Aug 11, 2020·0 cites·9 claims
- 2063US5569661AProcess for the production of b-carbolinesSCHERING AG·Filed 1993·Granted Oct 29, 1996·16 cites·1 claims
- 2163US2011250274A1Estriol formulationsSHAKED ZE EV·Filed 2009·Application pending·0 cites
- 2262US8673968B2Progesterone antagonistsNICKISCH KLAUS·Filed 2010·Granted Mar 18, 2014·1 cites·2 claims
- 2362US4891365A17-Substituted estradienes and estratrienesSCHERING AG·Filed 1987·Granted Jan 2, 1990·12 cites·27 claims
- 2462US4450107A7α-Alkoxycarbonyl-15β,16β-methylene-4-androstenes, process for the preparation thereof, and use thereof as medicinal agentsSCHERING AG·Filed 1982·Granted May 22, 1984·7 cites·15 claims
- 2561US5744616AProcess for the production of 1,4,7,10-tetraazacyclododecane and its derivativesSCHERING AG·Filed 1997·Granted Apr 28, 1998·9 cites·14 claims
- 2661US5733522ADerivatized DTPA complexes, pharmaceutical agents containing these compounds, their use and process for their productionSCHERING AG·Filed 1994·Granted Mar 31, 1998·7 cites·13 claims
- 2760US6046322AProcess 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%SCHERING AG·Filed 1998·Granted Apr 4, 2000·12 cites·4 claims
- 2859US4587235ANovel androstane derivatives, process for their production, and pharmaceutical preparations containing themSCHERING AG·Filed 1984·Granted May 6, 1986·5 cites·2 claims
- 2956US10624903B2Longer-acting progestin prodrug contraceptivesEVESTRA INC·Filed 2018·Granted Apr 21, 2020·0 cites·14 claims
- 3055US2020237656A1Drug device combination for the effective treatment of incontinence in womenEVESTRA INC·Filed 2019·Application pending·0 cites
- 3153US9850273B2Combination of estrogens plus antiprogestins with significant partial agonistic effect as an effective treatment of menopausal symptoms and for prevention of the occurrence of breast cancerEVESTRA INC·Filed 2015·Granted Dec 26, 2017·0 cites·13 claims
- 3253US4851526A1-(4-Substituted phenyl)-1H-imidazoles compoundsSCHERING AG·Filed 1987·Granted Jul 25, 1989·4 cites·14 claims
- 3352US2020383906A1Hormonal contraception using a vaginal ring which releases estriol and trimegestoneEVESTRA INC·Filed 2020·Application pending·0 cites
- 3449US5371000AProcess for the production of ergoline derivativesSCHERING AG·Filed 1992·Granted Dec 6, 1994·4 cites·3 claims
- 3549US4559331A7α-Substituted 3-oxo-17α-pregn-4-ene-21,17-carbolactones, process for their production, and pharmaceutical preparations containing sameSCHERING AG·Filed 1984·Granted Dec 17, 1985·5 cites·3 claims
- 3648US4542024A15,16 -Methylene-17α-pregna-4,6-diene-21-carboxylic acid salts, pharmaceutical preparations containing them and a process for their productionSCHERING AG·Filed 1984·Granted Sep 17, 1985·3 cites·15 claims
- 3748US2020087340A1Lif/lifr antagonist in oncology and nonmalignant diseasesEVESTRA INC·Filed 2019·Application pending·0 cites
- 3847US4868166A2,2:6,6-diethylen-3-oxo-17alpha-pregn-4-ene-21,17alpha-carbolactones, process for their production & pharmaceutical preparations containing themSCHERING AG·Filed 1987·Granted Sep 19, 1989·5 cites·7 claims
- 3946US2018155386A1Progesterone antagonistsEVESTRA INC·Filed 2017·Application pending·0 cites
- 4044US2017319833A1Intravaginal drug delivery deviceEVESTRA INC·Filed 2017·Application pending·0 cites
- 4143US2013029953A1Progesterone antagonistsNICKISCH KLAUS·Filed 2011·Application pending·0 cites
- 4242US9096641B2Imidazolyl progesterone antagonistsNICKISCH KLAUS·Filed 2013·Granted Aug 4, 2015·0 cites·17 claims
- 4342US4500522A7.alpha.-Acylthio-15,16-methylene-3-oxo-17α-pregna-1,4-diene-21,17-carbolactones, their preparation and use as medicinal agentsSCHERING AG·Filed 1983·Granted Feb 19, 1985·3 cites·12 claims
- 4441US2013123523A1Methods for the preparation of etonogestrel and desogestrelNICKISCH KLAUS·Filed 2011·Application pending·0 cites
- 4540US5258290AFermentation process for the production of β-carboline derivatives by Myrothecium verrucariaSCHERING AG·Filed 1991·Granted Nov 2, 1993·2 cites·1 claims
- 4639US7547776B1Process 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%BAYER SCHERING PHARMA AG·Filed 1999·Granted Jun 16, 2009·2 cites·12 claims
- 4739US4904462AMultiply-tritiated steroidal-20,17-spirolactones and their use as tracer compoundsSCHERING AG·Filed 1985·Granted Feb 27, 1990·7 cites·13 claims
- 4839US4511565A7α-Acylthio-1α,2α-methylene-3-oxo-17α-pregn-4-ene-21,17-carbolactones, their production and pharmaceutical preparations containing themSCHERING AG·Filed 1983·Granted Apr 16, 1985·1 cites·13 claims
- 4938US8334375B2Methods for the preparation of drospirenoneNICKISCH KLAUS·Filed 2010·Granted Dec 18, 2012·0 cites·19 claims
- 5037US5712099AProcess for the production of arabinonucleosidesSCHERING AG·Filed 1995·Granted Jan 27, 1998·2 cites·6 claims
Showing the top 50 of 64 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →