This inventor holds 3 USPTO granted patents. Top assignees: Hughes Aircraft Company, Hughes Electronics Corporation. Active years: 1988-1998.
Company Filing History:
Years Active: 1988-1998
Title: Joan L. Lum: Innovator in Thermal Control Coatings
Introduction
Joan L. Lum is a notable inventor based in Redondo Beach, California. She has made significant contributions to the field of thermal control coatings, holding a total of 3 patents. Her innovative work has implications for various industries, particularly in enhancing the efficiency of materials used in different applications.
Latest Patents
Among her latest patents, one notable invention is a thermal control coating that includes a substrate with a silicone polymeric matrix. This matrix contains aluminum-doped zinc oxide pigment particles, which are distributed in a specific ratio. The coating can be either relatively thick or flexibly thin, with a thickness greater than 0.0015 inches to achieve low solar absorptance. The coating demonstrates an absorptance of about 0.2-0.3 and an emittance of about 0.9, while also being sufficiently electrically conductive to dissipate electrostatic charges.
Another patent by Lum features a similar thermal control coating, again utilizing a silicone polymeric matrix with aluminum-doped zinc oxide pigment particles. This innovation also allows for flexibility in thickness and maintains the same low solar absorptance and high emittance characteristics, showcasing her expertise in this specialized area.
Career Highlights
Joan L. Lum has had a distinguished career, working with prominent companies such as Hughes Aircraft Company and Hughes Electronics Corporation. Her experience in these organizations has contributed to her development as an inventor and her understanding of advanced materials.
Collaborations
Throughout her career, Lum has collaborated with notable colleagues, including Lynn E. Long and Robert A. Dunaetz. These partnerships have likely enriched her work and led to further advancements in her field.
Conclusion
Joan L. Lum's contributions to thermal control coatings exemplify her innovative spirit and dedication to advancing technology. Her patents reflect a deep understanding of materials science and their applications, making her a significant figure in her industry.

