Company Filing History:
Years Active: 1977-1995
Title: The Innovations of George H. Crawford, Jr. in Photothermography
Introduction: George H. Crawford, Jr., an inventive mind based in White Bear Lake, Minnesota, has made significant contributions to the field of photothermography. With a total of seven patents under his name, his innovative approaches in the realm of photographic emulsions have paved the way for advancements in imaging technology.
Latest Patents: One of Crawford's notable patents is for "Thermoreversible Organogels for Photothermographic Elements." This invention consists of a photographic emulsion featuring a photosensitive silver halide, a light-insensitive reducible silver source, a reducing agent, and a binder that includes poly(vinyl butyral) with a specific poly(vinyl alcohol) content. Furthermore, the process involves applying molten thermoreversible organogel layers onto a substrate, allowing for simultaneous coating of multiple layers. This innovation ensures the formation of multilayer coated films while minimizing interlayer mixing of additive components.
Career Highlights: Throughout his career, George H. Crawford, Jr. has demonstrated a persistent commitment to innovation while working at Minnesota Mining and Manufacturing Company (3M). His expertise has greatly influenced the development of advanced photothermographic materials, establishing him as a key figure in this niche sector.
Collaborations: In his journey, Crawford has collaborated with noteworthy colleagues, including Kenneth L. Hanzalik and Sharon M. Rozzi. Their joint efforts have contributed to the successful advancement of technologies related to organogels and photothermography.
Conclusion: George H. Crawford, Jr.'s contributions to the field of photographic emulsions through his inventive work on thermoreversible organogels exemplify the spirit of innovation. His patents are a testament to his creativity and dedication to advancing imaging technologies, solidifying his legacy as an influential inventor.