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Ludwigshafen, Germany

Fritz Graser

USPTO Granted Patents = 16

Average Co-Inventor Count = 1.6

ph-index = 8

Forward Citations = 275(Granted Patents)

Company Filing History:

15 out of 10,754

Basf Aktiengesellschaft

Badische Anilin- & Soda-fabrik Aktiengesellschaft

Years Active: 1976-1988

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16 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4725690 - Perylene-3,4,9,10-tetracarboxylic acid diimide dye (1988-02-16),

2. 4667417 - Preparation of aerogels (1987-05-26),

3. 4517270 - Electrophotographic recording medium (1985-05-14),

4. 4451654 - Conditioning of finely divided crude organic pigments (1984-05-29),

5. 4450273 - NN' Para methoxy benzyl perylene-3,4,9,10-tetracarboxylic acid diimide (1984-05-22),

6. 4446324 - Perylenetetracarboxylic acid diimides and their use (1984-05-01),

7. 4429029 - Organic electrophotographic recording medium (1984-01-31),

8. 4419427 - Electrophotographic medium with perylene-3,4,9,10-tetracarboxylic acid (1983-12-06),

9. 4379934 - Process for two-dimensionally concentrating light, and novel (1983-04-12),

10. 4368582 - Process for drying finely divided pigments (1983-01-18),

11. 4262851 - Process for converting crude and/or coarsely crystalline (1981-04-21),

12. 4240793 - Preparation of a high-hiding and deeply colored pigmentary form of (1980-12-23),

13. 4156757 - Electrically conductive perylene derivatives (1979-05-29),

14. 4145356 - Process of preparing pyranthrone pigments (1979-03-20),

15. 4029468 - Transfer dyes (1977-06-14),

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