Clemens Rufer

This inventor holds 21 USPTO granted patents, primarily in Pharmaceutical Chemistry. Top assignee: Schering Aktiengesellschaft. Active years: 1976-1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Clemens Rufer. Retrieved from https://idiyas.com/inventor/clemens-rufer

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

USPTO Granted Patents = 21

% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 7

Forward Citations = 205(Granted Patents)

Company Filing History:

21 out of 1,409

Schering Aktiengesellschaft

patents

Years Active: 1976-1987

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Areas of Expertise:

Diphosphonic Acid

Pharmaceutical Preparations

Indanyl Derivatives

Thiophene Derivatives

Nitroimidazole

Phenylacetic Acid

Biguanides

Carbazole Derivatives

Pyrazolyloxyacetic Acid

Amino-Substituted

Antilipolytic Activity

Processes

21 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4645762 - Diphosphonic acid derivatives and pharmaceutical preparations containing (1987-02-24),

2. 4555406 - Indanyl derivatives, their preparation and use (1985-11-26),

3. 4503049 - Diphosphonic acid derivatives and pharmaceutical preparations containing (1985-03-05),

4. 4473560 - Diphosphonic acid derivatives and pharmaceutical preparations containing (1984-09-25),

5. 4411910 - Benzofuran derivatives and their pharmaceutical use (1983-10-25),

6. 4407823 - Novel phenylacetic acid derivatives (1983-10-04),

7. 4375479 - Indanyl derivatives and use (1983-03-01),

8. 4244960 - Indanyl derivatives and their use (1981-01-13),

9. 4058619 - Thiophene derivatives having antilipolytic activity (1977-11-15),

10. 4057640 - 5,6,7,8:Tetrahydrocarbazole-1-carboxylic acid derivatives (1977-11-08),

11. 4053472 - 2-(5-Nitro-2-imidazolyl)-benzimidazoles (1977-10-11),

12. 4038410 - Nitroimidazole derivatives and process for the preparation thereof (1977-07-26),

13. 4031236 - Novel thiophene derivatives and their preparation (1977-06-21),

14. 4021450 - Thiophene derivatives and their preparation (1977-05-03),

15. 3992374 - Amino-substituted nitroimidazolyl-methyleneaminoimidazolidinones (1976-11-16),

Title: Innovations and Contributions of Clemens Rufer in Pharmaceutical Chemistry

Introduction: Clemens Rufer is a distinguished inventor based in Berlin, Germany, known for his significant contributions to the field of pharmaceutical chemistry. With a remarkable portfolio of 21 patents, his work largely revolves around the development of innovative compounds that have important applications in medicine.

Latest Patents: Among his latest inventions are two notable patents focusing on diphosphonic acid derivatives. The first patent describes pharmaceutical preparations containing diphosphonic acid derivatives, specifically those represented by the formula where X can be cyano, 2-cyanoethyl, or 3-aminopropyl, and Y can be either hydrogen or a dimethylaminomethylene group. The second patent involves the creation and use of indanyl derivatives, which are characterized by a unique structural formula where R1 and R2 can be hydrogen, fluorine, or chlorine. These innovations are pivotal in advancing pharmaceutical research.

Career Highlights: Clemens Rufer currently works at Schering Aktiengesellschaft, a leading firm in the pharmaceutical industry. His extensive research and development efforts have positioned him as a key contributor to the company’s success and innovation in drug development.

Collaborations: Throughout his career, Rufer has collaborated with notable colleagues such as Helmut Biere and Eberhard Schroder. Their collective efforts have fostered an environment of innovation and scientific progress, driving forward the research endeavors within their organization.

Conclusion: Clemens Rufer’s work exemplifies the essential role of inventors in advancing the field of pharmaceutical sciences. His innovative solutions, evidenced by his numerous patents, continue to have a lasting impact on medicine, showcasing the importance of collaboration and research in pushing the boundaries of current knowledge.

Profile summary based on public USPTO records.

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]