Erwin Hahn

This inventor holds 51 USPTO granted patents, primarily in Dye Chemistry (CPC class 5347). Top assignee: Basf Aktiengesellschaft. Active years: 1980-1996.

USPTO Granted Patents = 51

% Patents Active = 100.0

Average Co-Inventor Count = 3.5

ph-index = 9

Forward Citations = 253(Granted Patents)

Forward Citations (Not Self Cited) = 247(Dec 10, 2025)

Inventors with similar research interests:

Company Filing History:

51 out of 10,754

Basf Aktiengesellschaft

patents

Years Active: 1980-1996

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Areas of Expertise:

Azo Dyes

Fluorescent Pigments

Resin Recycling

Thiazoleazo Dyes

Cured Aminoplast Resins

Heterocyclic Compounds

Dyeing Processes

Novel Dyes

Chemical Degradation

Metal-Coated Fibers

Dye Mixtures

Aromatic Compounds

51 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5560961 - Process of making metal-coated melamine/formaldehyde resin fibers (1996-10-01),

2. 5470502 - Fluorescent pigments (1995-11-28),

3. 5424461 - Preparation of 1-amino-4-hydroxyanthraquinone (1995-06-13),

4. 5421990 - Production of shining shaped articles coated with zinc or a zinc alloy (1995-06-06),

5. 5410053 - Rhodamine derivatives (1995-04-25),

6. 5393828 - Chemical degradation of cured amino resins (1995-02-28),

7. 5382476 - Recycling of cured aminoplast resins (1995-01-17),

8. 5371232 - Preparation of 2-(4-aminophenyl)benzothiazole compounds (1994-12-06),

9. 5356938 - Recycling of cured aminoplast resins (1994-10-18),

10. 5332830 - Preparation of N-hydroxyazoles (1994-07-26),

11. 5306815 - Azo dyes with a coupling component of the quinoline series (1994-04-26),

12. 5298610 - Thiazoleazo dyes having a coupling component of the diphenylamine series (1994-03-29),

13. 5286854 - Basic azo dyes with a coupling component of the (1994-02-15),

14. 5286401 - Use of heterocyclic compounds as bleach activators or optical (1994-02-15),

15. 5270456 - Azo dyes with A2-aminothiophene dye azo component and a coupling (1993-12-14),

Title: The Legacy of Erwin Hahn: Pioneering Inventor from Heidelberg

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Collaborations: Erwin Hahn has collaborated with leading research institutions, universities, and companies worldwide to further his innovative projects. His partnerships have led to the successful implementation of novel ideas and the creation of valuable intellectual property.

Conclusion: Erwin Hahn's unwavering dedication to innovation and his remarkable contributions to the world of patents and inventions have solidified his position as a trailblazing inventor from Heidelberg, Germany.