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For the Inventor, By the Inventor

Speyer, Germany

Sigberg Pfohl

USPTO Granted Patents = 11

Average Co-Inventor Count = 4.4

ph-index = 6

Forward Citations = 180(Granted Patents)


Company Filing History:

goldMedal11 out of 10,754 
 
Basf Aktiengesellschaft
 patents

Years Active: 1976-1992

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11 patents (USPTO):Explore Patents
1. 5131981 - Coloring paper (1992-07-21),
2. 4978427 - Water-soluble copolymers containing vinylamine units as wet strength and (1990-12-18),
3. 4880497 - Preparation of water-soluble copolymers containing vinylamine units, and (1989-11-14),
4. 4818341 - Production of paper and paperboard of high dry strength (1989-04-04),
5. 4804387 - Liquid black dye mixture (1989-02-14),
6. 4784724 - Making paper which has a high dry strength (1988-11-15),
7. 4774285 - Preparation of water-soluble copolymers containing vinylamine units, and (1988-09-27),
8. 4294873 - Manufacture of paper having a high dry strength and a low wet strength (1981-10-13),
9. 4191692 - Manufacture of tocopherol (1980-03-04),
10. 4081477 - Pinane derivatives (1978-03-28),
11. 3996246 - Resolution of racemic pantolactone (1976-12-07),

Title: Sigberg Pfohl: Innovator in Papermaking Technology

Introduction

Sigberg Pfohl is a notable inventor based in Speyer, Germany. He has made significant contributions to the field of papermaking, holding a total of 11 patents. His innovative approaches have advanced the techniques used in the production of paper, particularly through the use of specialized materials and processes.

Latest Patents

Among his latest patents is a method for coloring paper. This process involves the simultaneous addition of pigments and cationic fixers to the paper pulp, enhancing the coloring efficiency. Another significant patent involves the development of water-soluble copolymers containing vinylamine units. These copolymers are created by copolymerizing N-vinylformamide with various ethylenically unsaturated monomers. The resulting materials are crucial for increasing both the dry and wet strength of paper, thereby improving its overall quality.

Career Highlights

Sigberg Pfohl is currently associated with BASF Aktiengesellschaft, a leading chemical company. His work at BASF has allowed him to explore and implement innovative solutions in the papermaking industry. His patents reflect a deep understanding of chemical processes and their applications in enhancing product performance.

Collaborations

Throughout his career, Pfohl has collaborated with esteemed colleagues such as Michael Kroener and Heinrich Hartmann. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

Sigberg Pfohl's contributions to the field of papermaking through his patents and collaborative efforts have established him as a key figure in the industry. His innovative methods continue to influence the production of high-quality paper products.

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