Company Filing History:
Years Active: 1999-2000
Title: Innovations by Allan L Liebrenz
Introduction
Allan L Liebrenz is a notable inventor based in Excelsior, MN (US). He has made significant contributions to the field of filtration technology, holding a total of 2 patents. His work focuses on developing advanced filters that enhance air quality and efficiency.
Latest Patents
One of Allan's latest patents is a filter and method for making a filter. This innovative filter includes an organic vapor adsorbing layer, a first particulate removal layer, and a second particulate removal layer. The organic vapor adsorbing layer is composed of porous adsorbent beads that allow air or gas to flow through with minimal resistance, providing increased surface area due to the pores. The particulate removal layer can be constructed from electrostatic materials and/or polytetrafluoroethylene. This filter is designed to achieve a figure of merit greater than about 10, with a capacity for permanently adsorbing organic vapors. The figure of merit is calculated based on fractional efficiency for particles sized at 0.3 µm in an air flow with a velocity of 10.5 ft./min and for Frazier permeability at 0.5 inches H2O.
Career Highlights
Allan L Liebrenz is currently employed at Donaldson Company, Inc., where he continues to innovate in the field of filtration. His work has contributed to the development of more effective air and gas filtration systems.
Collaborations
Throughout his career, Allan has collaborated with notable colleagues, including Kirk A Schneider and Henry J Drasner, III. These collaborations have further enhanced the quality and impact of his inventions.
Conclusion
Allan L Liebrenz is a distinguished inventor whose work in filtration technology has led to significant advancements in air quality solutions. His innovative patents reflect his commitment to improving environmental health and safety.