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Trademarks = 6

Forward Citations = 114

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10 inventors (with patents filed for the assignee):

Mustafa Akram (4 out of 23 patents)

Winfried Seidel (4 out of 5 patents)

Dieter Heeb (4 out of 4 patents)

4. Uwe Bergemann (3 out of 5 patents)

5. Wolfgang Schlenther (3 out of 3 patents)

6. Claus-Dieter Frenzel (3 out of 3 patents)

7. Volker Bollert (3 out of 3 patents)

8. Gunter Bechmann (2 out of 2 patents)

9. Wolfgang Wolff (1 out of 8 patents)

10. Thomas Oelschlager (1 out of 1 patent)

10 patents: Sort by Forward Citations

1. 5494489 - Aqueous colorants for keratin fibers (1996-02-27),

2. 5230710 - Substituted 2,6-diaminotoluenes, processes for their preparation and (1993-07-27),

3. 5163970 - Nitro-p-phenylenediamine derivatives, processes for their preparation (1992-11-17),

4. 5091581 - Process for the selective preparation of N-substituted (1992-02-25),

5. 5078748 - Substituted 1,3-diaminobenzenes, processes for their preparation and (1992-01-07),

6. 4575378 - Substituted 4-amino-3-nitrophenols, processes for their preparation and (1986-03-11),

7. 4466838 - Pressurized carrier mixture for aerosol preparations (1984-08-21),

8. 4322037 - Aerosol can, having a super-fine atomization valve, with a filling which (1982-03-30),

9. 4243548 - Pressurized aerosol formulation and process for the manufacture thereof (1981-01-06),

10. 3996153 - Aerosol propellant (1976-12-07),

Hans Schwarzkopf GmbH is a leading hair care products company, known for its high-quality products and innovative solutions. With a history dating back to 1904, Schwarzkopf has built a strong reputation in the industry for providing professional salon products and at-home hair care solutions. Their extensive range of products includes hair color, styling, and care products that cater to a wide range of hair types and needs.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

10 Patents

#82 in Hamburg

#3,713 in Germany

#54,238 in the World

Hamburg, Germany

Hans Schwarzkopf Gmbh