logo

For the Inventor, By the Inventor

Darmstadt, Germany

Hans-Rudi Lenz

This inventor holds 6 USPTO granted patents. Top assignees: Wella Aktiengesellschaft, Wella Aktiengsellschaft. Active years: 1988-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hans-Rudi Lenz. Retrieved from https://idiyas.com/inventor/hans-rudi-lenz

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

USPTO Granted Patents = 6

% Patents Active = 100.0

Average Co-Inventor Count = 4.4

ph-index = 5

Forward Citations = 80(Granted Patents)


Location History:

  • Darmstadt, DE (1988 - 1990)
  • Darmstadt, all ofr, DE (1990)

Company Filing History:

goldMedal5 out of 433 
 
Wella Aktiengesellschaft
 patents
silverMedal1 out of 2 
 
Wella Aktiengsellschaft
 patents

Years Active: 1988-1990

Loading Chart...
6 patents (USPTO):Explore Patents
1. 4954619 - O-benzyl-N-hydroxyalkyl derivatives of chitosan and nail polish (1990-09-04),
2. 4931271 - Cosmetic compostions based upon N-hydroxybutyl-chitosans, (1990-06-05),
3. 4923977 - Cosmetic composition based upon N-hydroxypropylisopropylether chitosans (1990-05-08),
4. 4845204 - Cosmetic compositions on the basis of alkyl-hydroxypropyl-substituted (1989-07-04),
5. 4835266 - Cosmetic compositions based upon n-hydroxypropyl-chitosans, new (1989-05-30),
6. 4780310 - Cosmetic compositions based upon N-hydroxypropyl-chitosans, new (1988-10-25),

Title: The Innovations of Hans-Rudi Lenz

Introduction

Hans-Rudi Lenz is a notable inventor based in Darmstadt, Germany. He has made significant contributions to the field of cosmetic chemistry, particularly through his innovative patents. With a total of 6 patents, Lenz has established himself as a key figure in the development of new cosmetic formulations.

Latest Patents

Among his latest patents are the O-benzyl-N-hydroxyalkyl derivatives of chitosan and a unique nail polish formulation. The nail polish is based on a film-former, a resin component, and a solvent system, which includes an O-benzyl-N-hydroxyalkyl chitosan of the specified formula. Additionally, he has developed cosmetic compositions based on N-hydroxybutyl-chitosans, showcasing his expertise in creating effective and innovative cosmetic products.

Career Highlights

Lenz has had a distinguished career, working with prominent companies such as Wella Aktiengesellschaft. His work has focused on advancing cosmetic technologies and improving product formulations, which has had a lasting impact on the industry.

Collaborations

Throughout his career, Lenz has collaborated with notable professionals in the field, including Gerhard Maresch and Gunther Lang. These collaborations have contributed to the success of his projects and the advancement of cosmetic science.

Conclusion

Hans-Rudi Lenz's contributions to the field of cosmetic chemistry through his patents and collaborations highlight his innovative spirit and dedication to improving cosmetic products. His work continues to influence the industry and inspire future innovations.

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…