Company Filing History:

13 out of 12,157

Bayer Aktiengesellschaft

patents

1 out of 113

Haarmann & Reimer Gmbh

patents

1 out of 532

Bayer Materialscience Ag

patents

Years Active: 1994-2006

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15 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7071283 - Reactive rectification (2006-07-04),

2. 6649798 - Method for production of diaminodiphenylmethanes (2003-11-18),

3. 6458972 - Process for the preparation of macrocyclic esters (2002-10-01),

4. 6288284 - Method for producing bis(4-hydroxyaryl)alkanes (2001-09-11),

5. 5763717 - Process for preparing hydroxybiphenyl (1998-06-09),

6. 5625097 - Process for preparing diphenylamines and catalysts usable for this (1997-04-29),

7. 5583251 - Process for the production of isocyanates and for the production of (1996-12-10),

8. 5510499 - Process for the isolation of purified ethylene glycol carbonate (EGC) (1996-04-23),

9. 5508442 - Reactor and continuous process to be carried out therewith for the (1996-04-16),

10. 5495038 - Process for the purification of diphenyl carbonate (1996-02-27),

11. 5489696 - Process for purifying ethylene glycol carbonate (EGC) by adsorption on (1996-02-06),

12. 5449791 - Process for the preparation of propylene glycol carbonate (1995-09-12),

13. 5395976 - Process for the preparation of a mixture of cyclohexanone and (1995-03-07),

14. 5391767 - Process for the preparation of alkylene carbonates (1995-02-21),

15. 5350862 - Process for the preparation of ethylene glycol carbonate (1994-09-27),

Title: Christine Mendoza-Frohn: Innovator in Chemical Engineering

Introduction

Christine Mendoza-Frohn is a prominent inventor based in Erkrath, Germany. She has made significant contributions to the field of chemical engineering, particularly in the production of polycarbonate and methylenedianiline. With a total of 15 patents to her name, her work has had a substantial impact on the industry.

Latest Patents

One of her latest patents is focused on reactive rectification. This invention relates to a method for producing polycarbonate through the transesterification of molten mass, where bis-(hydroxyaryl) compounds (bisphenols) and diaryl carbonates are reacted using reactive rectification. Another notable patent involves a method for the production of diaminodiphenylmethanes. This process aims to produce methylenedianiline (MDA) with a high monomer content, showcasing her innovative approach to chemical processes.

Career Highlights

Throughout her career, Christine has worked with notable companies such as Bayer Aktiengesellschaft and Haarmann & Reimer GmbH. Her experience in these organizations has allowed her to develop and refine her inventions, contributing to advancements in chemical engineering.

Collaborations

Christine has collaborated with esteemed colleagues, including Hans-Josef Buysch and Paul Wagner. These partnerships have fostered a creative environment that has led to the development of her groundbreaking patents.

Conclusion

Christine Mendoza-Frohn is a trailblazer in the field of chemical engineering, with a remarkable portfolio of patents that reflect her innovative spirit. Her contributions continue to influence the industry and inspire future generations of inventors.

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Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.