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For the Inventor, By the Inventor

Niedernhausen, Germany

Heinrich Frolich

This inventor holds 7 USPTO granted patents. Top assignee: Hoechst Aktiengesellschaft. Active years: 1979-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Heinrich Frolich. Retrieved from https://idiyas.com/inventor/heinrich-frolich

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 = 2.1

ph-index = 3

Forward Citations = 25(Granted Patents)


Location History:

  • Kelkheim, DE (1979)
  • Niedernhausen/Taunus, DE (1991)
  • Niedernhausen, DE (1981 - 1992)

Company Filing History:

goldMedal7 out of 6,705 
 
Hoechst Aktiengesellschaft
 patents

Years Active: 1979-1992

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7 patents (USPTO):Explore Patents
1. 5128454 - .beta.-modified crystalline fed monoazo pigment (1992-07-07),
2. 4987258 - 4,4'-diaminodiphenyl compounds, process for their preparation and their (1991-01-22),
3. 4987221 - Bisdiazonium salts of 4,4'-diamino-3,3'-dialkoxybiphenyls and a process (1991-01-22),
4. 4696675 - Process for preparing water-insoluble blue azo dyes on the fiber: (1987-09-29),
5. 4665163 - Diaryl pigments with improved heat stability obtained by coupling (1987-05-12),
6. 4251441 - Pigments of mixtures of methoxynitrobenzene-azo-methoxy-acetanilides (1981-02-17),
7. 4150019 - Water-insoluble yellow (1979-04-17),

Title: Heinrich Frolich: Innovator in Pigment Technology

Introduction

Heinrich Frolich is a notable inventor based in Niedernhausen/Taunus, Germany. He has made significant contributions to the field of pigment technology, holding a total of seven patents. His work has advanced the development of novel pigments that are widely used in various applications.

Latest Patents

Frolich's latest patents include a .beta.-modified crystalline fed monoazo pigment. This invention relates to a new crystallographic modification of the pigment, which exhibits specific reflections in the X-ray diffraction spectrum. The .beta.-modification is particularly suitable for pigmenting printing inks, surface coatings, plastic compositions, filaments, and paper. Another significant patent involves bisdiazonium salts of 4,4'-diamino-3,3'-dialkoxybiphenyls, which are useful in dyeing and printing textile fiber materials.

Career Highlights

Heinrich Frolich has had a distinguished career, working with Hoechst Aktiengesellschaft, a leading company in the chemical industry. His innovative approaches to pigment formulation have positioned him as a key figure in the development of advanced materials.

Collaborations

Frolich has collaborated with notable coworkers, including Klaus Hunger and Hasso Hertel. These partnerships have contributed to the successful development of his patented technologies.

Conclusion

Heinrich Frolich's contributions to pigment technology through his patents have had a lasting impact on various industries. His innovative spirit continues to inspire advancements in material science.

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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