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For the Inventor, By the Inventor

Hanau, Germany

Karl-Heinz Keil

This inventor holds 29 USPTO granted patents, primarily in Polymer Chemistry. Top assignees: Cassella Aktiengesellschaft, Hoechst Aktiengesellschaft, Clariant Corporation. Active years: 1979-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Karl-Heinz Keil. Retrieved from https://idiyas.com/inventor/karl-heinz-keil

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

USPTO Granted Patents = 29

% Patents Active = 100.0

Average Co-Inventor Count = 3.7

ph-index = 8

Forward Citations = 182(Granted Patents)


Location History:

  • Offenbach, DE (1979)
  • Offenbach-Bieber, DE (1981)
  • Offenbach am Main, DE (1979 - 1983)
  • Hanaub, DE (1992)
  • Hanau-Mittelbuchen, DE (1984 - 1993)
  • Hanau, DE (1987 - 2000)

Company Filing History:

goldMedal18 out of 260 
 
Cassella Aktiengesellschaft
 patents
silverMedal10 out of 6,705 
 
Hoechst Aktiengesellschaft
 patents
bronzeMedal1 out of 480 
 
Clariant Corporation
 patents

Years Active: 1979-2000

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Areas of Expertise:
Copolymers
Surfactants
Dyeing Processes
Polycondensates
Microencapsulation
Aqueous Formulations
Cellulose Fibers
Reactive Dyestuffs
Softener Emulsion
Enzyme Supports
Condensing Agents
29 patents (USPTO):Explore Patents
1. 6028192 - Process for the preparation of diacylimides (2000-02-22),
2. 5530093 - Polycondensates containing phosphinic and phosphonic acid groups (1996-06-25),
3. 5492995 - Polycondensates containing phosphinic or phosphonic acid groups and (1996-02-20),
4. 5389280 - Stable and homogeneous aqueous formulations of surfactants (1995-02-14),
5. 5230711 - Dyeing of cellulose with soluble sulphur dyes without reducing agent (1993-07-27),
6. 5144040 - Process for the preparation of 1-(acylaminoalkyl)-2-imidazolines (1992-09-01),
7. 5100673 - Microencapsulation of biologically active material (1992-03-31),
8. 5041553 - Process for the preparation of 2-substituted (1991-08-20),
9. 5006129 - Dyeing textile material with pigment dyes: pre-treatment with quaternary (1991-04-09),
10. 4988365 - Process for the dyeing and printing of cellulose fibers in the absence (1991-01-29),
11. 4977239 - Polybase from amino amido carboxylic acid, polyamine and difunctional (1990-12-11),
12. 4810254 - Wet-fastness properties of sulphur dyestuffs dyeings on cellulose (1989-03-07),
13. 4806126 - Process for alkali-free dyeing and printing with reactive dyes (1989-02-21),
14. 4753999 - Copolymer, process for its preparation, and its use (1988-06-28),
15. 4686243 - Copolymer, a process for its preparation and its use as enzyme supports (1987-08-11),

Title: Karl-Heinz Keil: Innovating in Chemical Patents

Introduction

Karl-Heinz Keil, based in Hanau, Germany, is a notable inventor with an impressive portfolio of 29 patents. His work primarily revolves around innovative processes in the chemical industry, focusing on creating compounds with significant practical applications.

Latest Patents

Among his latest contributions to the field are two remarkable patents. The first is a novel process for the preparation of diacylimides, achieved by reacting a secondary acid amide with an acid chloride in the presence of N,N-diisopropyl-N-ethylamine. The resulting compounds have been recognized for their potential uses as insecticides or bleach activators. The second patent covers polycondensates containing phosphinic and phosphonic acid groups, detailing the processes for their preparation and applications.

Career Highlights

Karl-Heinz has had an extensive career in the chemical industry, making significant strides in his field. He has worked with renowned companies such as Cassella Aktiengesellschaft and Hoechst Aktiengesellschaft, where he honed his expertise and developed his innovative ideas further.

Collaborations

Throughout his career, Karl-Heinz collaborated with distinguished individuals, including Klaus Sternberger and Ulrich Greiner. These partnerships have undoubtedly contributed to his success and the advancement of his projects, facilitating a rich exchange of ideas and expertise.

Conclusion

Karl-Heinz Keil exemplifies the spirit of innovation in the chemical industry. His numerous patents and collaborative efforts reflect a commitment to advancing technology and providing effective solutions for practical applications. His work continues to influence the field and inspire future inventions.

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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