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For the Inventor, By the Inventor

Leverkusen, Germany

Rutger Neeff

USPTO Granted Patents = 48

Average Co-Inventor Count = 2.6

ph-index = 6

Forward Citations = 173(Granted Patents)


Location History:

  • Cologne, DE (1981)
  • Leverkusen, DE (1976 - 1989)

Company Filing History:

goldMedal48 out of 12,157 
 
Bayer Aktiengesellschaft
 patents

Years Active: 1976-1989

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48 patents (USPTO):Explore Patents
1. 4863634 - Anthraquinone dyestuffs (1989-09-05),
2. 4709019 - Anthraquinone-azo pyridone-containing compounds (1987-11-24),
3. 4689171 - Anthraquinone dyestuffs, their preparation and use and dichroic material (1987-08-25),
4. 4666526 - Azine pigments, processes for their preparation, and their use (1987-05-19),
5. 4628093 - Red nickel azine pigment (1986-12-09),
6. 4596666 - Aryl-mercapto anthraquinone dyestuffs, their preparation and use and (1986-06-24),
7. 4585574 - Anthraquinone dyestuffs, processes for their preparation, their use, and (1986-04-29),
8. 4564680 - Isoindolazines (1986-01-14),
9. 4556401 - Process for dyeing amide-containing fibre materials (1985-12-03),
10. 4435589 - Process for the preparation of dimethyl succinylosuccinate, the disodium (1984-03-06),
11. 4422973 - Process for the preparation of 1,4-diamino-2,3-dicyano-anthraquinone (1983-12-27),
12. 4389215 - Anthraquinone-azomethine compounds, processes for their preparation and (1983-06-21),
13. 4344827 - Process for working up nitric acid (1982-08-17),
14. 4334068 - Process for the preparation of triazinylamino-anthraquinones (1982-06-08),
15. 4323671 - Anthraquinone derivatives, processes for their preparation, processes (1982-04-06),

Introduction

Rutger Neeff is a prominent inventor based in Leverkusen, Germany, known for his significant contributions to the field of dyestuffs. With an impressive portfolio of 48 patents, he has established himself as a key player in materials innovation, particularly at Bayer Aktiengesellschaft.

Latest Patents

Two of Rutger Neeff's latest patents focus on advanced anthraquinone compounds. The first patent involves anthraquinone dyestuffs, characterized by a specific chemical formula where X can designate OR₂ or a group NHR₂. The second patent addresses anthraquinone-azo pyridone-containing compounds, which in one of their tautomeric structures are represented by a formula where A indicates an α-anthraquinone radical, free from sulphonic acid groups, which may be either unsubstituted or substituted and is often comprised of at most five fused rings.

Career Highlights

Rutger's career at Bayer Aktiengesellschaft has been marked by innovative research and development in chemicals and materials. His profound knowledge and creativity have led to advancements in synthetic dyes, enhancing applications across various industries.

Collaborations

Throughout his career, Rutger has closely worked with fellow inventors, including Meinhard Rolf and Walter Muller. These collaborations have fostered a dynamic exchange of ideas and facilitated the advancement of their collective expertise in the field.

Conclusion

Rutger Neeff stands out as a distinguished inventor whose work not only benefits Bayer Aktiengesellschaft but also contributes to the broader field of dyestuff technology. With ongoing innovations and collaborative efforts, he continues to push the boundaries of what's possible in material science.

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