Roy; Waldemar
Patent Applications and Registrations
Patent applications and USPTO patent grants for Roy; Waldemar.The latest application filed is for "highly-active, finely divided super-dry silicon dioxide".
- Roy; Waldemar - Rheinfelden DT
| Patent | Date |
|---|---|
| Highly-active, finely divided super-dry silicon dioxide Grant 4,036,933 - Laufer , et al. * July 19, 1 | 1977-07-19 |
| Apparatus for making particulate materials, particularly oxides, hydrophobic Grant 4,022,152 - Laufer , et al. May 10, 1 | 1977-05-10 |
| Process of hydrophorizing highly dispersed metal or metalloid oxides Grant 3,920,865 - Laufer , et al. November 18, 1 | 1975-11-18 |
| Process for the hydrophobization of higher dispersed oxides Grant 3,873,337 - Laufer , et al. March 25, 1 | 1975-03-25 |
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