Company Filing History:
7 out of 28 
3 out of 549 
2 out of 480 
Years Active: 1997-2022
Title: The Innovative Journey of Stephan Krieger
Introduction
Stephan Krieger, an accomplished inventor based in Hofheim, Germany, has made significant contributions to the field of polymer chemistry. With a total of 14 patents to his name, Krieger has demonstrated his prowess in developing innovative solutions through extensive research and experimentation.
Latest Patents
Among his latest patents, Krieger has focused on advanced polymer dispersions and their preparation techniques. One notable patent describes a multistage emulsion polymerization process. This involves polymerizing a first monomer composition that includes 50 to 95 weight percent of vinyl acetate and 5 to 40 weight percent of a vinyl ester of a Cto Cunsaturated carboxylic acid, resulting in a first stage polymer. Following this, a second monomer composition is polymerized in the presence of the first stage polymer to create a second stage polymer.
Another relevant patent discusses the creation of an aqueous polymer dispersion through a similar multistage emulsion polymerization. In this process, two distinct monomer compositions are polymerized sequentially, resulting in a complex polymer structure that includes both hard and soft monomers, alongside a water-soluble cross-linking component.
Career Highlights
Stephan Krieger has spent a significant portion of his career with reputable companies, including Celanese Emulsions GmbH and Celanese International Corporation. His role in these organizations has allowed him to enhance his expertise in polymer science and contribute meaningfully to various innovative projects.
Collaborations
Collaboration has been a key aspect of Krieger's journey. He has worked closely with fellow innovators Thomas Fichtner and Matthias Junk, exchanging ideas and expertise to drive their projects forward. These collaborative efforts have not only enriched his work but have also led to significant advancements in the field of polymer chemistry.
Conclusion
Stephan Krieger's contributions to the field of polymer innovations exemplify the spirit of invention. With 14 patents and ongoing research, he continues to push the boundaries of what is possible in polymer chemistry, leaving a lasting impact on the industry and inspiring future inventors.