Company Filing History:
Years Active: 1976-1979
Title: The Innovative Contributions of Francois Leon Schelfaut
Introduction
Francois Leon Schelfaut is a notable inventor based in St. Niklaas, Belgium. He has made significant contributions to the field of photography through his innovative patents. With a total of 4 patents, Schelfaut has focused on advancing the technology behind Lippmann-emulsions.
Latest Patents
Schelfaut's latest patents include groundbreaking methods for reversal processing of exposed Lippmann-emulsions. One of his patents describes a method for creating reversal images in Lippmann-emulsions. This method involves image-wise exposing the emulsion and subjecting it to a first stage of development to form a negative silver image. Some silver halide is left in the exposed areas, which is then developed in a second stage under fogging conditions. This process ultimately leads to the formation of a positive image. Another patent focuses on photographic materials designed for making positive images through reversal processing. This material includes a support and a silver halide Lippmann-emulsion layer, with an average silver halide grain size of less than 100 nm. The grains are chemically sensitized to fog, allowing for specific density outcomes upon development.
Career Highlights
Francois Leon Schelfaut is associated with Agfa Gevaert NV, a company known for its expertise in imaging technology. His work has contributed to the advancement of photographic materials and processes, enhancing the quality and capabilities of imaging.
Collaborations
Schelfaut has collaborated with notable coworkers, including Herman Adelbert Philippaerts and Willy Joseph Vanassche. These collaborations have likely played a role in the development of his innovative patents.
Conclusion
Francois Leon Schelfaut's contributions to the field of photography through his patents on Lippmann-emulsions demonstrate his innovative spirit and dedication to advancing imaging technology. His work continues to influence the industry and inspire future developments.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.