Company Filing History:

8 out of 131,214

Samsung Electronics Co., Ltd.

patents

4 out of 7,865

Minnesota Mining and Manufacturing Company

Years Active: 1995-2008

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14 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 7354687 - Dry toner blended with wax (2008-04-08),

2. 7318987 - Dry toner comprising entrained wax (2008-01-15),

3. 7306886 - Dry toner comprising wax (2007-12-11),

4. 7106997 - Intermediate transfer member for carrying intermediate electrophotographic image (2006-09-12),

5. 7018769 - Liquid toners comprising organic pigments and methods (2006-03-28),

6. 7018768 - Organosols comprising a chromophore, methods and uses (2006-03-28),

7. 6887558 - Intermediate transfer member for electrophotographic process (2005-05-03),

8. 6832064 - Seamless drying belt for electrophotographic process (2004-12-14),

9. 6342324 - Release layers and compositions for forming the same (2002-01-29),

10. 5939237 - Top coats for shoot and run printing plates (1999-08-17),

11. 5552260 - Shoot and run printing materials (1996-09-03),

12. 5527655 - Radiation-sensitive adducts comprising diazonium cations, quaternary (1996-06-18),

13. 5506090 - Process for making shoot and run printing plates (1996-04-09),

14. 5395734 - Shoot and run printing materials (1995-03-07),

Title: **Leonard Stulc: Innovator in Electrographic Toner Technology**

Introduction

Leonard Stulc, an accomplished inventor based in Shafer, MN, is recognized for his contributions to the field of electrographic toner technology. With a total of 14 patents to his name, Stulc has significantly advanced the way dry toner compositions are formulated and utilized, particularly in the printing industry.

Latest Patents

Stulc’s latest innovations involve two notable patents for dry toner blended with wax. The first patent describes dry electrographic toner compositions that consist of a plurality of toner particles including a polymeric binder made up of an amphipathic copolymer. This invention emphasizes that the associated wax is primarily located at the surface of the toner particles, enhancing the durability and erasure resistance of images produced.

The second patent focuses on dry toner compositions where the wax is entrained within the toner particles during the creation of the amphipathic copolymer. This method also ensures excellent durability and erasure resistance at low fusion temperatures, providing a practical solution in the electrographic printing process.

Career Highlights

Stulc has had a distinguished career, contributing to leading companies in technology and manufacturing sectors. He has worked at Samsung Electronics Co., Ltd. and Minnesota Mining and Manufacturing Company, known for their innovation and commitment to quality in electrographic technologies. His work in these organizations has enabled him to deepen his expertise and facilitate groundbreaking advancements in toner compositions.

Collaborations

Throughout his career, Stulc has collaborated with esteemed colleagues, including Charles W. Simpson and Dennis Edward Vogel. These partnerships have fostered an environment of creativity and innovation, leading to successful developments in electrographic toner technology.

Conclusion

Leonard Stulc's impressive portfolio of patents and his contributions to the field of electrographic toner formulations mark him as a significant inventor in the industry. His work not only demonstrates a commitment to enhancing the quality and efficiency of toner compositions but also reflects the importance of collaboration and continuous innovation in technology.

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