This inventor holds 14 USPTO granted patents and 1 EPO patent. Top assignees: Degussa Aktiengesellschaft, Degussa Gmbh, Degussa - Huls Ag. Active years: 1992-2003.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
11 out of 1,694 
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1 out of 148 Years Active: 1992-2003
Title: Werner Hartmann: Innovator in Zirconium and Titanium Dioxide Technologies
Introduction
Werner Hartmann is a notable inventor based in Babenhausen, Germany. He holds a total of 14 patents, showcasing his significant contributions to the fields of materials science and chemical engineering. His innovative work primarily focuses on the production and application of zirconium and titanium dioxide powders.
Latest Patents
Among his latest patents is a method for producing pyrogenically generated zirconium dioxide powder. This powder features a specific surface area ranging from 20 to 200 m²/g and a primary particle size between 7 and 100 nm. The tamped density of both deacidified and non-deacidified zirconium dioxide falls between 40 and 150 g/l, with specific Sears numbers between 1 and 20 ml/2 g. The chlorine content of the deacidified zirconium dioxide is less than 0.6% by weight. The production process involves evaporating zirconium halides and mixing the vapors with a carrier gas in a burner, where they react in a flame. The waste gases and zirconium dioxide are then cooled in a heat exchanger, and any halide remnants are removed through heat treatment with moistened air.
Another significant patent involves a titanium dioxide powder that contains iron oxide. This mixed oxide is prepared from FeCl and TiCl using a pyrogenic method, particularly flame hydrolysis. Additionally, titanium dioxide can be coated with iron oxide in aqueous dispersion. These titanium dioxide powders serve as effective UV absorbers in sunscreens.
Career Highlights
Throughout his career, Werner Hartmann has worked with prominent companies such as Degussa Aktiengesellschaft and Degussa GmbH. His expertise in chemical processes and materials has led to advancements in the production of specialized powders that have various industrial applications.
Collaborations
Werner has collaborated with notable colleagues, including Dieter Kerner and Helmut Mangold. Their combined efforts have contributed to the development of innovative technologies in the field of materials science.
Conclusion
Werner Hartmann's contributions to the development of zirconium and titanium dioxide technologies highlight his role as a significant inventor in the industry. His patents reflect a commitment to innovation and excellence in materials science.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile