Company Filing History:
2 out of 7 
1 out of 832,812 Years Active: 1978-1980
Title: Jan R deFries: Innovator in Valve Technology
Introduction
Jan R deFries is a notable inventor based in Zurich, Switzerland. He has made significant contributions to the field of valve technology, holding a total of 3 patents. His innovative designs have advanced the functionality and efficiency of fluid control systems.
Latest Patents
One of his latest patents is a Multiway Valve. This invention features a housing with an axially movable main valve body that is reciprocally mounted between first and second positions. The design includes a flexible diaphragm that blocks communication between the main valve chamber and the control valve chamber, ensuring precise control of fluid flow. Another significant patent is a Valve Arrangement, which includes a housing with an inlet for pressurized fluid and an outlet. This arrangement utilizes a flexible diaphragm to maintain constant pressure in the control chamber, independent of variations in the pressure of the supplied fluid.
Career Highlights
Throughout his career, Jan R deFries has worked with various companies, including Festo-Maschinenfabrik Gottlieb Stoll. His experience in these organizations has allowed him to refine his skills and contribute to the development of advanced valve technologies.
Collaborations
Jan has collaborated with notable individuals in the industry, including his coworker Kurt Stoll. Their partnership has fostered innovation and the sharing of ideas in the field of valve technology.
Conclusion
Jan R deFries is a distinguished inventor whose work in valve technology has led to significant advancements in fluid control systems. His patents reflect his commitment to innovation and excellence in engineering.