Company Filing History:
2 out of 45 
1 out of 2 Years Active: 2001-2007
Title: The Innovative Contributions of Stefan Zettl
Introduction
Stefan Zettl is a notable inventor based in Munich, Germany. He has made significant contributions to the field of granulation processes, particularly in the treatment of sludge and dust-form materials. With a total of 3 patents to his name, Zettl's work showcases his expertise and innovative spirit.
Latest Patents
Zettl's latest patents include a "Process and apparatus for the granulation of sludges." This invention relates to a method where sludge and optionally dust-form material are mixed with hydratable or hydraulically settable solids and water. The solids react exothermically with water, acting as a binder in the mixture. The process allows for the solids to hydrate or set fully or partially, resulting in granules. Another significant patent is the "Method and device for granulating slurry and/or powdered material," which shares similar principles and applications in granulation.
Career Highlights
Throughout his career, Stefan Zettl has worked with prominent companies such as Voest-Alpine Industrieanlagenbau GmbH & Co. and Deutsche Voest-Alpine Industrieanlagenbau GmbH. His experience in these organizations has contributed to his development as an inventor and innovator in the field.
Collaborations
Zettl has collaborated with notable coworkers, including Christoph Aichinger and Alfred Aigner. Their combined expertise has likely influenced the innovative processes and inventions that Zettl has developed.
Conclusion
Stefan Zettl's contributions to the field of granulation processes highlight his innovative capabilities and dedication to improving material treatment methods. His patents reflect a commitment to advancing technology in this area, making him a significant figure in the realm of inventions.