This inventor holds 2 USPTO granted patents. Top assignee: Agfa Gevaert Nv. Active years: 1976.
Location History:
- Mortsel, BE (1976)
- Mortsel-Antwerp, BE (1976)
Company Filing History:
Years Active: 1976
Title: Marcel Jan Libeer: Innovator in Photographic Emulsions
Introduction
Marcel Jan Libeer is a notable inventor based in Mortsel, Belgium. He has made significant contributions to the field of photographic technology, particularly in the development of silver halide emulsions. With a total of 2 patents to his name, Libeer's work has had a lasting impact on the industry.
Latest Patents
Libeer's latest patents include a method of preparing photographic silver halide emulsions. This innovative method involves silver halide precipitation in the presence of a reducing agent, followed by physical and, if desired, chemical ripening. An oxidizing agent is added to the emulsion after the addition of the reducing agent, allowing for precise control over the gradation and photosensitivity characteristics of the emulsion. Another significant patent involves methine dyes, which relates to a new class of pyrrolobenzimidazole, benzimidazoloisoquinoline, and dipyrodinobenzodiimidazole in cyanine sensitizing dyes. These dyes are derived from his research and are used in silver halide emulsions, showcasing his innovative approach to photographic chemistry.
Career Highlights
Libeer has built a successful career at Agfa Gevaert NV, a leading company in imaging technology. His work has not only advanced the field but has also contributed to the company's reputation for innovation in photographic products.
Collaborations
Throughout his career, Libeer has collaborated with esteemed colleagues such as Frans Henri Claes and Henri Depoorter. These partnerships have fostered a creative environment that has led to groundbreaking advancements in photographic technology.
Conclusion
Marcel Jan Libeer's contributions to the field of photographic emulsions exemplify the spirit of innovation. His patents and collaborative efforts continue to influence the industry, ensuring that his legacy endures.