logo

For the Inventor, By the Inventor

Monheim, Germany

Wolfgang Preuss

This inventor holds 9 USPTO granted patents. Top assignee: Henkel Ag & Company, Kgaa. Active years: 1982-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Wolfgang Preuss. Retrieved from https://idiyas.com/inventor/wolfgang-preuss

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

Calculating rank
USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 1.5

ph-index = 2

Forward Citations = 13(Granted Patents)


Company Filing History:

goldMedal9 out of 4,541 
 
Henkel Ag & Company, Kgaa
 patents

Years Active: 1982-1985

Loading Chart...
9 patents (USPTO):Explore Patents
1. 4519949 - Steroid-20-carboxylic acid compounds and a process for their production (1985-05-28),
2. 4448725 - .DELTA.4-Steroid compounds and a process for their production (1984-05-15),
3. 4446072 - Process for degrading the 20-carboxyl group of (1984-05-01),
4. 4432905 - Simplified process for the degradation of steroid-C-22-carboxylic acids (1984-02-21),
5. 4430270 - Process for the production of delta 4-C21-steroid compounds (1984-02-07),
6. 4370271 - Process for the partial reduction of C21-steroid carboxylic acids and (1983-01-25),
7. 4362815 - Process for the preparation of defective mutants of microorganisms (1982-12-07),
8. 4333880 - 3-Oxo-pregna-1,14,17-trien-20-carboxylates and process (1982-06-08),
9. 4320195 - Steroid production (1982-03-16),

Title: Wolfgang Preuss: Innovator in Steroid Chemistry

Introduction

Wolfgang Preuss is a notable inventor based in Monheim, Germany. He has made significant contributions to the field of steroid chemistry, holding a total of 9 patents. His work focuses on the development of steroid-20-carboxylic acid compounds and their production processes.

Latest Patents

Among his latest patents, Preuss has described novel steroid-20-carboxylic acid compounds and a process for their production. These compounds correspond to a specific general formula, where X represents halogen, particularly chlorine or bromine, or NH₂. The process involves dehydrating saturated starting compounds that are hydroxylated in the 11-position to form the 9(11)-ene-bond. This innovative method allows for the formation of 20-acid halides and dehydration in a single process step. Additionally, he has developed new Δ4-steroid compounds, which may contain a further double bond in the 1-position and an 11-oxygen function. These compounds are obtained from associated steroid-20-carboxylic acids through a reaction with a halogenating agent at controlled temperatures.

Career Highlights

Wolfgang Preuss has worked with prominent companies such as Henkel Kommanditgesellschaft Auf Aktien and Henkel Kgaa. His experience in these organizations has contributed to his expertise in the field of chemistry and innovation.

Collaborations

Throughout his career, Preuss has collaborated with notable individuals, including Rolf Schmid and Frank F. Hill. These partnerships have likely enhanced his research and development efforts in steroid chemistry.

Conclusion

Wolfgang Preuss is a distinguished inventor whose work in steroid chemistry has led to significant advancements and numerous patents. His innovative approaches continue to influence the field and contribute to ongoing research and development.

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]
Loading…