This inventor holds 13 USPTO granted patents and 6 published patent applications and 7 EPO patents. Top assignees: Basf Se Corporation, Basf Aktiengesellschaft. Active years: 2013-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Stemwede, DE (2013 - 2020)
- Stemwede Haldem, DE (2016 - 2021)
- Lemfoerde, DE (2022 - 2023)
Company Filing History:
Years Active: 2013-2026
Title: Frank Schaefer: Innovator in Thermoplastic Polyurethanes
Introduction
Frank Schaefer is a notable inventor based in Stemwede, Germany. He has made significant contributions to the field of thermoplastic polyurethanes, holding a total of 12 patents. His work focuses on innovative materials that have practical applications in various industries.
Latest Patents
One of Frank Schaefer's latest patents is for the continuous production of a PPG-based thermoplastic polyurethane (TPU). This TPU has a glass transition temperature of the soft phase of not more than −25° C, measured using dynamic mechanical analysis (DMA). The process involves the reaction of a polyol composition that includes polypropylene glycol, with a high proportion of secondary terminal OH groups. This TPU can be utilized for producing injection molded products, extruded products, films, profiles, and shaped articles. Another significant patent is for an antistatic stretch film, which is formed using a specific thermoplastic polyurethane. This film is designed to be stretchable and antistatic, showcasing the versatility of Schaefer's innovations.
Career Highlights
Throughout his career, Frank Schaefer has worked with prominent companies such as BASF SE Corporation and BASF Aktiengesellschaft. His experience in these organizations has allowed him to develop and refine his expertise in polymer chemistry and materials science.
Collaborations
Frank Schaefer has collaborated with notable colleagues, including Dirk Kempfert and Ruediger Krech. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.
Conclusion
Frank Schaefer is a distinguished inventor whose work in thermoplastic polyurethanes has led to significant advancements in material science. His innovative patents and collaborations reflect his commitment to enhancing the capabilities of modern materials.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

