Beyer; Karl-Heinz
Patent Applications and Registrations
Patent applications and USPTO patent grants for Beyer; Karl-Heinz.The latest application filed is for "spectacle frame with resilient hinges".
- Beyer; Karl-Heinz - 1217 Meyrin CH
- Beyer; Karl-Heinz - Frankenthal DE
| Patent | Date |
|---|---|
| Spectacle frame with resilient hinges Grant 4,832,479 - Beyer , et al. May 23, 1 | 1989-05-23 |
| Preparation of acyloxybenzenesulfonic acids and their alkali metal and alkaline earth metal salts Grant 4,695,412 - Balzer , et al. September 22, 1 | 1987-09-22 |
| Flocculant for sludges Grant 4,444,667 - Burkert , et al. April 24, 1 | 1984-04-24 |
| Preventing Migration Of Pigments In Dyeing Or Printing Fibrous Materials Grant 3,802,905 - Beyer , et al. April 9, 1 | 1974-04-09 |
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