This inventor holds 6 USPTO granted patents. Top assignees: 3M Innovative Properties Company, Imation Corporation, Other. Active years: 1979-1999.
Location History:
- Tucson, AZ (US) (1979)
- Saint Paul, MN (US) (1990 - 1999)
Company Filing History:


Years Active: 1979-1999
Title: Charles G Barlow: Innovator in Photographic Technology
Introduction
Charles G Barlow is a notable inventor based in Saint Paul, MN (US). He has made significant contributions to the field of photographic technology, holding a total of 6 patents. His work primarily focuses on improving image quality in photographic films.
Latest Patents
One of his latest patents involves the development of image toners for silver halide photographic films. This innovation describes a black-and-white, negative-acting, silver halide emulsion that provides improved image tone when utilized in a photographic element. The toning agents are based on dithio-substituted compounds with specific structural characteristics. Another significant patent pertains to noble metal complexes used to sensitize silver halide emulsions. This method employs hydrido-phosphine noble metal compounds, particularly platinum (II) compounds, to enhance the sensitivity of silver halide photographic emulsions.
Career Highlights
Throughout his career, Charles G Barlow has worked with 3M Innovative Properties Company, where he has contributed to various advancements in photographic technology. His innovative spirit and dedication to research have positioned him as a key figure in his field.
Collaborations
Charles has collaborated with notable individuals such as Bernard A Lea and Ronald W Burrows. These partnerships have further enriched his work and expanded the impact of his inventions.
Conclusion
Charles G Barlow's contributions to photographic technology through his patents and collaborations highlight his role as an influential inventor. His work continues to shape the industry and improve photographic processes.