Voerde, Germany

Leif Johnen

USPTO Granted Patents = 6 

 

Average Co-Inventor Count = 4.1

ph-index = 2

Forward Citations = 8(Granted Patents)


Location History:

  • Voerge, DE (2015)
  • Voerde, DE (2015 - 2016)
  • Dorsten, DE (2017)

Company Filing History:


Years Active: 2015-2017

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6 patents (USPTO):Explore Patents

Title: Innovations by Inventor Leif Johnen

Introduction

Leif Johnen, a prolific inventor based in Voerde, Germany, has made significant contributions to the field of chemical engineering and synthesis. With a total of six patents to his name, Johnen's work primarily focuses on innovative processes involving chemical reactions and the production of various compounds.

Latest Patents

Leif Johnen’s latest patents highlight his expertise in the production of mixtures containing tertiary isononanoic acids based on 2-ethylhexanol. One patent describes a method where 2-ethylhexanol is reacted with a mixture of concentrated formic acid and a concentrated Brønsted acid at temperatures between 0°C to 40°C. This reaction utilizes 2 to 10 mol of formic acid per mole of 2-ethylhexanol, leading to the production of a mixture of tertiary isononanoic acids. Moreover, a second patent outlines a process for preparing vinyl esters of isononanoic acid, starting from 2-ethylhexanol, through a series of dehydration and conversion steps.

Career Highlights

Throughout his career, Johnen has demonstrated a strong commitment to advancing chemical processes and production methods in the industry. His innovative techniques have not only led to the filing of multiple patents but have also contributed to the operational capabilities of the companies he has worked for.

Collaborations

Johnen collaborates closely with notable colleagues in the field, including Heinz Strutz and Guido D Frey. These collaborations have fostered a creative environment that promotes the exchange of ideas and enhances the development of new technologies within the chemical engineering sector.

Conclusion

Leif Johnen is an inspiring inventor whose work is paving the way for new methodologies in the production of chemical compounds. His contributions, particularly in the area of tertiary isononanoic acids and vinyl esters, exemplify the innovative spirit of the industry and underscore the importance of research and development in chemical engineering.

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