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Patent applications and USPTO patent grants for Fuhr; Werner.The latest application filed is for "process for the production of black pigments based on iron".
Patent | Date |
---|---|
Process for the production of black pigments based on iron Grant 4,701,221 - Brunn , et al. October 20, 1 | 1987-10-20 |
Process for the production of yellow-brown zinc ferrite pigments Grant 4,681,637 - Rademachers , et al. July 21, 1 | 1987-07-21 |
Heat exchange with gas/solids mixtures Grant 4,018,262 - Jaschinski , et al. April 19, 1 | 1977-04-19 |
Composite pigment of isometric rutile and acicular modified potassium hexatitanate Grant 3,956,006 - Winter , et al. May 11, 1 | 1976-05-11 |
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