Company Filing History:

11 out of 7,865

Minnesota Mining and Manufacturing Company

Years Active: 1980-1999

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14 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5968720 - Photographic fixer compositions and method for processing a photographic (1999-10-19),

2. 5629138 - Photographic fixer composition and method (1997-05-13),

3. 5578434 - Photographic silver halide developer composition and process for forming (1996-11-26),

4. 5545508 - Photographic silver halide developer compositions and process for (1996-08-13),

5. 5478706 - Alkaline black-and-white developer for silver halide photographic (1995-12-26),

6. 5318881 - Method of processing a silver halide radiographic material (1994-06-07),

7. 5273865 - Photographic color developing composition and method for processing a (1993-12-28),

8. 4987060 - Concentrated photographic developer composition and method of making it (1991-01-22),

9. 4873180 - Developer compositions for silver halide photographic materials (1989-10-10),

10. 4777118 - Process for the formation of high contrast negative images and silver (1988-10-11),

11. 4756997 - Photographic silver halide developer compositions and process for (1988-07-12),

12. 4693956 - Process for high contrast development of photographic elements (1987-09-15),

13. 4501812 - Photographic color developer composition packaged in two or more (1985-02-26),

14. 4232113 - Liquid concentrated developer composition, and confection ready to mix (1980-11-04),

Title: **Carlo Marchesano: Innovator in Photographic Processing**

Introduction

Carlo Marchesano is a distinguished inventor based in Savona, Italy, known for his significant contributions to the field of photographic processing. With a total of 14 patents to his name, Marchesano has made remarkable strides in developing innovative fixer compositions that enhance the quality and efficiency of photographic materials.

Latest Patents

Among his latest patents, two stand out for their technical details and applications. The first patent highlights a photographic fixer composition that includes a silver halide solvent, an aluminum salt hardening agent, a buffering agent, and ammonium ions. This innovative composition also incorporates aminopolycarboxylic acid sequestering agents and polyphosphonic acid sequestering agents, enhancing the overall effectiveness of the fixer in processing exposed photographic silver halide elements. The second patent focuses on a similar fixer composition, which again comprises key components that facilitate the development and fixing of photographic materials, ensuring superior results for users in the photography industry.

Career Highlights

Marchesano has had a notable career, having worked with reputable companies such as Minnesota Mining and Manufacturing Company (commonly known as 3M) and Imation Corporation. His experience in these organizations has undoubtedly contributed to his innovative thinking and the practical application of his inventions in the field of photography.

Collaborations

Throughout his journey, Marchesano has collaborated with other talented professionals, including Filippo Faranda and Franco Buriano. These partnerships have fueled creative discussions and further advancements in photographic technology, showcasing the importance of teamwork in the innovation process.

Conclusion

Carlo Marchesano's inventive spirit and dedication to enhancing photographic processes reflect his commitment to innovation. With a robust portfolio of patents and a collaborative mindset, he continues to influence the photography industry and inspire future generations of inventors.

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