Company Filing History:

7 out of 283

Chinoin Gyogyszer Es Vegyeszeti Termekek Gyara Rt.

patents

2 out of 3

Magyar Tudomanyos Akademia

Richter Gedeon Vegyeszeti Gyar Rt

patents

5. 1 out of 1

Forte Photochemical Industry

patent

Years Active: 1978-1994

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12 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5292933 - Process for the resolution of (1994-03-08),

2. 5169751 - Process for the chemical sensitization of silver halide photographic (1992-12-08),

3. 5060672 - Highly efficient tobacco smoke filter (1991-10-29),

4. 4739081 - New crown ether derivatives, process for the preparation thereof and (1988-04-19),

5. 4531007 - Crown ether compounds, process for the preparation of the crown ether (1985-07-23),

6. 4508919 - Process for the preparation of optically active cyclopropane carboxylic (1985-04-02),

7. 4347377 - Process for the preparation of polyhalogenphenyl carbamates (1982-08-31),

8. 4342871 - Benzo(a)quinolizidine derivatives (1982-08-03),

9. 4334103 - Process for heterogeneous nucleophilic substitution reactions (1982-06-08),

10. 4229366 - Process for heterogeneous nucleophilic substitution reactions (1980-10-21),

11. 4210650 - Antiphlogistic method of treatment (1980-07-01),

12. 4102886 - Process for the preparation of benzo(a)quinolizidine derivatives (1978-07-25),

Title: The Innovator Behind Silver Halide Photographic Emulsions: Laszlo Toke

Introduction

Laszlo Toke, an influential inventor based in Budapest, Hungary, has made significant contributions to the field of photographic technology. With a remarkable portfolio of 12 patents to his name, Toke's work primarily revolves around the chemical sensitization of silver halide photographic emulsions, a vital aspect in improving photographic quality and performance.

Latest Patents

Among his latest patents is a novel process for the chemical sensitization of silver halide photographic emulsions. This innovative process includes the incorporation of additional sensitizing agents, specifically a cyclic polyether containing varying amounts of nitrogen and oxygen atoms. By employing these materials in a defined molar ratio with noble metal salts, Toke has substantially advanced the methodology behind photographic emulsions, showcasing his inventive prowess in the industry.

Career Highlights

Throughout his career, Laszlo Toke has worked with notable organizations such as Chinoin Gyógyszer és Vegyészeti Termékek Gyára Rt. and the Hungarian Academy of Sciences. His experiences in these prestigious institutions have not only enhanced his expertise but also allowed him to influence the fields of chemistry and photography significantly.

Collaborations

Toke has collaborated with esteemed colleagues, including Gabor T. Szabo and Istvan Rusznak, allowing for the exchange of ideas and innovative approaches to problem-solving in their respective fields. These partnerships have fostered advancements in photographic technologies and broadened the scope of their collective research endeavors.

Conclusion

Laszlo Toke stands out as a prominent figure in the realm of photographic invention, with his extensive research and innovative processes shaping the future of photographic technology. His dedication to enhancing silver halide emulsions has left a lasting impact in the industry, and his collaborations have propelled further discoveries and advancements in chemical sensitization techniques. As the photographic landscape continues to evolve, Toke's contributions will undoubtedly be recognized as pioneering efforts in innovation.

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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.