Johannes Platzek

This inventor holds 128 USPTO granted patents and 16 published patent applications, plus 11 CIPO patents and 15 EPO patents, primarily in Magnetic Resonance Imaging (CPC class 534 16). Top assignees: Schering Aktiengesellschaft, Bayer Pharma Aktiengesellschaft, Bayer Aktiengesellschaft. Active years: 1994-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Johannes Platzek. Retrieved from https://idiyas.com/inventor/johannes-platzek

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

USPTO Granted Patents = 128 (Patent Applications = 16)

% Patents Active = 73.4

CIPO Patents = 11 (Patent Applications = 21)

EPO Patents = 15 (Patent Applications = 33)

Average Co-Inventor Count = 3.9

ph-index = 16

Forward Citations = 722(Granted Patents)

Forward Citations (Not Self Cited) = 570(Dec 10, 2025)

Inventors with similar research interests:

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Company Filing History:

85 out of 1,409

Schering Aktiengesellschaft

patents

24 out of 386

Bayer Pharma Aktiengesellschaft

patents

8 out of 12,266

Bayer Aktiengesellschaft

patents

4. 7 out of 192

Bayer Schering Pharma Ag

patents

5. 3 out of 721

Bayer Intellectual Property Gmbh

Cis Bio International

patents

8. 1 out of 6

Institut Fur Diagnostikforschung Gmbh

patents

9. 2 out of 834,453

Other

patents

where one patent can have more than one assignee

Years Active: 1994-2026

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Areas of Expertise:

Gadolinium Chelate

Magnetic Resonance Imaging

Pharmaceutical Active Ingredient

Synthesis Methods

Indazoles

Epothilone Derivatives

Contrast Media

Crystalline Forms

Optically Active Esters

N-methyl-homocysteines

Perfluoroalkyl Complexes

High-Purity Gadobutrol

128 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12735415 - Process for the preparation of 2-cyanoethyl (4s)-4-(4-cyano-2-methoxy-phenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate by resolution of racemates by means of diastereomeric tartaric acid esters (2026-09-15),

2. 12478696 - Gadolinium chelate compounds for use in magnetic resonance imaging (2025-11-25),

3. 12448381 - Method for the preparation of (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1-6-naphthyridine-3-carbox-amide by racemate separation by means of diastereomeric tartaric acid esters (2025-10-21),

4. 12398144 - Photochemical process for producing (4R,4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridin-3-carboxamide (2025-08-26),

5. 12365679 - Process for producing acyloxymethyl esters of (4S)-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridin-3-carboxylic acid (2025-07-22),

6. 12358877 - Synthesis of 4-amino-5-methyl-1H-pyridin-2(1H)-on (intermediate compound for the synthesis of the MR antagonist finerenone) from 2-chloro-5-methyl-4-nitro-pyridine-1-oxide using the intermediate compound 2-chloro-5-methyl-4-pyridinamine (2025-07-15),

7. 12258343 - Method for preparing 2-[(3R)-3-methylmorpholin-4-yl]-4-[1-methyl-1H-pyrazol-5-yl)-8-(1H-pyrazol-5-yl)-1,7-naphthyridine (2025-03-25),

8. 12152006 - Process for preparing 4-amino-5-methylpyridone (2024-11-26),

9. 12054481 - Method for the preparation of (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1-6-naphthyridine-3-carbox-amide by racemate separation by means of diastereomeric tartaric acid esters (2024-08-06),

10. RE49860 - Process for preparing (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide and purification thereof for use as pharmaceutical active ingredient (2024-03-05),

11. RE49826 - Method for the preparation of (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1-6-naphthyridine-3-carboxamide and the purification thereof for use as an active pharmaceutical ingredient (2024-02-06),

12. RE49575 - Method for the preparation of (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-l,4-dihydro-1-6-naphthyridine-3-carbox-amide and the purification thereof for use as an active pharmaceutical ingredient (2023-07-10),

13. 11491245 - Gadolinium chelate compounds for use in magnetic resonance imaging (2022-11-08),

14. 11390592 - Method for producing the crystalline form of modification a of calcobutrol (2022-07-19),

15. 11274110 - Process for preparing benzothiophen-2yl boronate (2022-03-15),

Title: Celebrating the Innovations of Inventor Johannes Platzek

Introduction

Johannes Platzek, a prominent inventor based in Berlin, Germany, has made significant contributions to the field of chemical processes and compounds. With an astounding 122 patents to his name, Platzek's innovative spirit embodies the essence of scientific exploration and development. His groundbreaking work continues to impact various industries, particularly in pharmaceuticals.

Latest Patents

Among his latest innovations, Platzek has developed a method for preparing the compound 2-[(3R)-3-methylmorpholin-4-yl]-4-(1-methyl-1H-pyrazol-5-yl)-8-(1H-pyrazol-5-yl)-1,7-naphthyridine. This patent not only outlines the preparation process but also includes polymorphic form B of the compound with exceptional purity. Another noteworthy invention is the process for preparing 4-amino-5-methylpyridone, which details the reaction of an intermediate compound with ammonia in an autoclave, enhanced by the addition of an ammonium bromide salt.

Career Highlights

Johannes Platzek has had a distinguished career in the pharmaceutical industry, having worked for renowned companies such as Schering Aktiengesellschaft and Bayer Pharma Aktiengesellschaft. His time at these prestigious organizations helped him hone his skills and expand his expertise in innovative chemical processes, ultimately leading to the creation of his numerous patents.

Collaborations

Throughout his career, Platzek has collaborated with some remarkable professionals, including Hanns-Joachim Weinmann and Ulrich Niedballa. These partnerships have fostered an environment of creativity and innovation, enabling them to push the boundaries of research and development in their respective fields.

Conclusion

Johannes Platzek's journey as an inventor is a testament to his dedication and ingenuity. With a remarkable portfolio of patents and a career that showcases his commitment to innovation, Platzek continues to be a pivotal figure in the advancement of chemical processes. His work not only enhances the industry but also inspires future generations of inventors to pursue their ideas and contribute to scientific progress.

Profile summary based on public USPTO records.