Company Filing History:
Years Active: 2003-2014
Title: Innovations of Cheng-Hang Chi: Pioneering Filter Technologies
Introduction
Cheng-Hang Chi, an accomplished inventor based in Midlothian, Virginia, has made significant contributions to the field of filtration technologies. With a remarkable portfolio of seven patents to his name, he focuses on developing advanced filter materials that enhance performance in diverse applications.
Latest Patents
Chi's latest innovations include the development of pleated nanoweb structures, which feature a filter medium that incorporates a pleated design. This medium comprises a nanoweb layer, containing fibers with a diameter of less than 1 micron and a layer thickness of less than 50 microns. Notably, the total medium thickness-to-pleat spacing ratio is less than 0.15, with the nanoweb layer exhibiting a basis weight of over 0.6 grams per square meter. The scrim component of the filter can be made from various types of nonwoven webs—spunbond, dry-laid, wet-laid, cellulose fiber, melt blown, or glass fiber.
Furthermore, he has also patented media designed for hot gas filtration, featuring a fabric characterized by a nonwoven aramid mat. This mat boasts a basis weight of at least 9.7 ounces per square yard (330 grams per square meter) and shows a pore size distribution that enhances filtering capabilities. In its optimal form, more than 50% of its pores range between 10 and 26 microns, while over 0.5% of its pores exceed 50 microns in size.
Career Highlights
Cheng-Hang Chi is associated with E.I. du Pont de Nemours and Company, a renowned corporation recognized for its extensive research and innovation in materials science. His work at the company focuses on developing leading-edge digital and physical products, significantly impacting numerous industries.
Collaborations
Throughout his career, Chi has actively collaborated with talented individuals, including Hyun Sung Lim and Lu Zhang. These partnerships have enabled him to streamline ideas and produce effective innovations that address modern filtering challenges.
Conclusion
Cheng-Hang Chi stands out as a visionary inventor in the field of filtration technologies, with his inventive spirit reflected in his seven patents. His contributions to advanced filter materials herald a new era of improved performance in various filtration applications, reinforcing the importance of innovation in addressing contemporary challenges.