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For the Inventor, By the Inventor

Berlin, Germany

Hans-Joachim Kessler

This inventor holds 7 USPTO granted patents. Top assignee: Schering Aktiengesellschaft. Active years: 1976-1977.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hans-Joachim Kessler. Retrieved from https://idiyas.com/inventor/hans-joachim-kessler

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

Calculating rank
USPTO Granted Patents = 7

% Patents Active = 100.0

Average Co-Inventor Count = 2.9

ph-index = 3

Forward Citations = 45(Granted Patents)


Company Filing History:

goldMedal7 out of 1,409 
 
Schering Aktiengesellschaft
 patents

Years Active: 1976-1977

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7 patents (USPTO):Explore Patents
1. 4053472 - 2-(5-Nitro-2-imidazolyl)-benzimidazoles (1977-10-11),
2. 4038410 - Nitroimidazole derivatives and process for the preparation thereof (1977-07-26),
3. 4006243 - Amino-, mercapto- and -oxy-substituted-phenyl and -phenalkyl imidazoles (1977-02-01),
4. 4006241 - Certain halothien-2-yl 5-nitrothiazol-2-yl ketones and fungicidal (1977-02-01),
5. 3992374 - Amino-substituted nitroimidazolyl-methyleneaminoimidazolidinones (1976-11-16),
6. 3966732 - Nitroimidazolyl pyrimidines (1976-06-29),
7. 3965103 - 4-Nitroperhydropyrido[1,2-a][1,4]diazepines (1976-06-22),

Title: The Innovative Contributions of Hans-Joachim Kessler

Introduction

Hans-Joachim Kessler is a notable inventor based in Berlin, Germany. He has made significant contributions to the field of pharmaceuticals, particularly in the development of antimicrobial and anti-protozoal agents. With a total of 7 patents to his name, Kessler's work has had a considerable impact on medical science.

Latest Patents

Kessler's latest patents include the invention of 2-(5-Nitro-2-imidazolyl)-benzimidazoles. These compounds are characterized by their formula, where R₁ and R₂ can be various substituents such as H, halo, alkyl, alkoxy, nitro, trifluoromethyl, or carboxy. The compounds exhibit antimicrobial properties, particularly against Trichomonas vaginalis. Another significant patent involves Nitroimidazole derivatives, which possess anti-protozoal activity against both Trichomonas vaginalis and Entamoeba histolytica. These derivatives are defined by their complex chemical structures, which include various alkyl and amino substitutions.

Career Highlights

Hans-Joachim Kessler is currently associated with Schering Aktiengesellschaft, a prominent pharmaceutical company. His work at Schering has allowed him to focus on innovative solutions in drug development. Kessler's research has contributed to advancements in treatments for infectious diseases, showcasing his commitment to improving public health.

Collaborations

Throughout his career, Kessler has collaborated with esteemed colleagues such as Clemens Rufer and Peter Strehlke. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and expertise in the field of pharmaceuticals.

Conclusion

Hans-Joachim Kessler's contributions to the field of pharmaceuticals through his innovative patents and collaborations highlight his importance as an inventor. His work continues to influence the development of effective treatments for various infectious diseases.

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]
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