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Frankfurt, Germany

Hans-Jurgen Arpe

This inventor holds 22 USPTO granted patents, primarily in Chemical Processes. Top assignee: Hoechst Aktiengesellschaft. Active years: 1976-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hans-Jurgen Arpe. Retrieved from https://idiyas.com/inventor/hans-jurgen-arpe

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

USPTO Granted Patents = 22

% Patents Active = 100.0

Average Co-Inventor Count = 1.9

ph-index = 7

Forward Citations = 134(Granted Patents)


Location History:

  • Fischbach, Taunus, DE (1976 - 1978)
  • Fischbach, DE (1978)
  • Kelkheim, DE (1978 - 1984)
  • Frankfurt-am-Main, DE (1982 - 1990)

Company Filing History:

goldMedal22 out of 6,705 
 
Hoechst Aktiengesellschaft
 patents

Years Active: 1976-1990

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Areas of Expertise:
Isomerization
Carbonylation
Glycolic Acid
Chlorotoluene
Ethanol Production
Hydroxy-Pivalaldehyde
Lower Alkenes
Bromine Production
Glycol Ether
Acetic Acid
2-Ethyl-Pyridine
Cyclohexanone
22 patents (USPTO):Explore Patents
1. 4935561 - Process for isomerizing monochlorotoluenes or dichlorotoluenes (1990-06-19),
2. 4720583 - Process for the isomerization of o-, m- and/or p-toluidine (1988-01-19),
3. 4650915 - Process for preparing p-chlorotoluene and/or m-chlorotoluene (1987-03-17),
4. 4554380 - Process for the manufacture of o-toluidine and/or m-toluidine and/or (1985-11-19),
5. 4501917 - Process for carbonylating formaldehyde acetals (1985-02-26),
6. 4442228 - Process for the manufacture of ethanol from synthesis gas (1984-04-10),
7. 4324921 - Process for the manufacture of ethers of hydroxy-pivalaldehyde (1982-04-13),
8. 4288558 - Process for the manufacture of oxygen-containing carbon compounds from (1981-09-08),
9. 4247731 - Process for the manufacture of lower alkenes from methanol and/or (1981-01-27),
10. 4224236 - Process for the manufacture of oxygen-containing carbon compounds from (1980-09-23),
11. 4169959 - Process for the preparation of ethylene glycol-dimethylether (dimethyl (1979-10-02),
12. 4128727 - Process for the manufacture of acetic acid ethyl ester (1978-12-05),
13. 4128575 - Process for the manufacture of glycolic acid or its esters (1978-12-05),
14. 4110372 - Process for the purification of carboxylic acids (1978-08-29),
15. 4107263 - Process for the preparation of bromine and hydrogen bromide from (1978-08-15),

Title: The Innovative Contributions of Hans-Jurgen Arpe in Chemical Engineering

Introduction

Hans-Jurgen Arpe is a prominent inventor based in Frankfurt am Main, Germany, recognized for his significant contributions to the field of chemical engineering. With an impressive portfolio of 22 patents, Arpe has demonstrated a commitment to advancing technologies related to the isomerization processes of various compounds.

Latest Patents

Among his latest innovations, Arpe has developed a highly efficient process for isomerizing monochlorotoluenes and dichlorotoluenes. This process utilizes a zirconium-containing zeolite catalyst of the Pentasil type, which is notable for its exceptional activity and longevity. Specifically, his invention facilitates the creation of mixtures of 3-chlorotoluene and 4-chlorotoluene through the isomerization of 2-chlorotoluene. Furthermore, Arpe's methods extend to generating mixtures of 2,5-dichlorotoluene and 3,4-dichlorotoluene and preparing 2,4-dichlorotoluene from 3,4-dichlorotoluene.

Additionally, Arpe has pioneered a process for the isomerization of o-, m-, and p-toluidine. This innovation, also leveraging zirconium-containing zeolite catalysts of the Pentasil type, particularly emphasizes the efficient production of m-toluidine from o- and/or p-toluidine, showcasing his expertise in optimizing chemical reactions.

Career Highlights

Hans-Jurgen Arpe's career is marked by his association with Hoechst Aktiengesellschaft, a leading chemical company that has allowed him to explore and refine his inventions. His technical aptitude and innovative mindset have contributed positively to his company's reputation and success in the field.

Collaborations

Throughout his career, Arpe has collaborated with notable colleagues such as Ernst I. Leupold and Friedrich Wunder. These partnerships have fostered an environment of shared expertise and have enhanced the development of breakthrough technologies in chemical engineering.

Conclusion

The work of Hans-Jurgen Arpe exemplifies the impact of inventive minds in the field of chemical processes. His contributions, particularly in the area of isomerization using advanced zeolite catalysts, are a testament to his innovative thinking and dedication to the discipline. Through his patents and collaborations, Arpe continues to influence chemical engineering practices and drive forward the boundaries of innovation.

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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