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Leverkusen, Germany

Hans-Joachim Schittenhelm

USPTO Granted Patents = 10

Average Co-Inventor Count = 2.3

ph-index = 5

Forward Citations = 56(Granted Patents)

Location History:

Leverkusen, DE (1987 - 1992)
Koln, DE (1998)

Company Filing History:

10 out of 12,164

Bayer Aktiengesellschaft

Years Active: 1987-1998

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5851587 - Process for producing coated bismuth vanadate yellow pigments (1998-12-22),

2. 5837635 - Process for producing mixed oxide powders from deactivated denox (1998-11-17),

3. 5145804 - Enamel powder for electrostatic application (1992-09-08),

4. 5075263 - Enamel frits for acid-resistant one-coat enamelling on unpickled steels (1991-12-24),

5. 5013362 - Fluorine-free superopaque enamel frits (1991-05-07),

6. 4970375 - High-temperature heating systems and a process for their production (1990-11-13),

7. 4847218 - Enamel frits for sheet steel with improved bonding (1989-07-11),

8. 4713530 - Heating element combined glass/enamel overcoat (1987-12-15),

9. 4689271 - Coating for metallic substrates (1987-08-25),

10. 4659586 - Process for electrostatically spraying inorganic powders (1987-04-21),

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