Klaus Nickisch

This inventor holds 53 USPTO granted patents and 13 published patent applications, plus 2 CIPO patents and 11 EPO patents, primarily in Pharmaceutical Chemistry (CPC class C07J). Top assignees: Schering Aktiengesellschaft, Evestra, Inc., Bayer Schering Pharma Ag. Active years: 1983-2020.

USPTO Granted Patents = 53 (Patent Applications = 13)

% Patents Active = 96.2

CIPO Patents = 2 (Patent Applications = 5)

EPO Patents = 11 (Patent Applications = 15)

Average Co-Inventor Count = 3.8

ph-index = 8

Forward Citations = 270(Granted Patents)

Forward Citations (Not Self Cited) = 243(Dec 10, 2025)

Inventors with similar research interests:

Location History:

West Berlin, DE (1990)
Berlin, DE (1983 - 2020)

Company Filing History:

41 out of 1,409

Schering Aktiengesellschaft

Bayer Schering Pharma Ag

Years Active: 1983-2020

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Areas of Expertise:

Cytotoxic Agents

Contraceptive Compounds

Steroid Derivatives

Progestin Prodrugs

Hormonal Antagonists

Fludarabine-Phosphate

Alkylating Agents

Beta-Carbolines

Indole Derivatives

DTPA Complexes

Cardiovascular Agents

Novel Sulfonamides

53 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10738075 - Cytotoxic agents that preferentially target leukemia inhibitory factor (LIF) for the treatment of malignancies and as new contraceptive agents (2020-08-11),

2. 10624903 - Longer-acting progestin prodrug contraceptives (2020-04-21),

3. 10273263 - Pro-drug forming compounds (2019-04-30),

4. 10053485 - Cytotoxic agents that preferentially target leukemia inhibitory factor (LIF) for the treatment of malignancies and as new contraceptive agents (2018-08-21),

5. 9850273 - Combination of estrogens plus antiprogestins with significant partial agonistic effect as an effective treatment of menopausal symptoms and for prevention of the occurrence of breast cancer (2017-12-26),

6. 9745338 - Pro-drug forming compounds (2017-08-29),

7. 9096641 - Imidazolyl progesterone antagonists (2015-08-04),

8. 8673968 - Progesterone antagonists (2014-03-18),

9. 8334375 - Methods for the preparation of drospirenone (2012-12-18),

10. 8222237 - Progestational 3-(6,6-ethylene-17B-hydroxy-3-oxo-17A-pregna-4-ene-17A-yl)propionic acid G-lactones (2012-07-17),

11. 7960368 - Bismethylene-17A carbolactones and related uses (2011-06-14),

12. 7547776 - 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% (2009-06-16),

13. 6933395 - 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 (2005-08-23),

14. 6121465 - Process for production drospirenone and intermediate products of the (2000-09-19),

15. 6046322 - Process for the production of fludarabine-phosphate lithium, sodium, (2000-04-04),

Title: Klaus Nickisch - Innovative Inventor from Berlin

Introduction: Klaus Nickisch is a renowned inventor based in Berlin, Germany, known for his groundbreaking contributions to various industries through his innovative creations.

Latest Patents: Klaus Nickisch holds several patents in the fields of renewable energy, sustainable technology, and advanced materials, showcasing his commitment to developing solutions for a greener future.

Career Highlights: With a career spanning over two decades, Klaus Nickisch has worked with leading research institutions and companies to bring his inventions to life. His dedication to pushing the boundaries of technology has earned him recognition in the global innovation community.

Collaborations: Klaus Nickisch has collaborated with top universities and research institutions in Germany and beyond, fostering a culture of innovation and knowledge sharing. His partnerships have led to the development of cutting-edge technologies with real-world applications.

Conclusion: Klaus Nickisch's passion for innovation and his relentless pursuit of excellence have solidified his reputation as a visionary inventor in Berlin and beyond. His work continues to inspire the next generation of inventors to think boldly and create solutions that shape the world of tomorrow.