Grasse; Manfred
Patent Applications and Registrations
Patent applications and USPTO patent grants for Grasse; Manfred.The latest application filed is for "building material composition, especially bitumen-free sealant".
- Grasse; Manfred - Unna DE
| Patent | Date |
|---|---|
| Building material composition, especially bitumen-free sealant Grant 7,955,658 - Grasse , et al. June 7, 2 | 2011-06-07 |
| Building Material Composition, Especially Bitumen-free Sealant App 20090155472 - Grasse; Manfred ; et al. | 2009-06-18 |
| Preparation for the water-repellent impregnation of porous mineral building materials Grant 5,091,002 - Schamberg , et al. February 25, 1 | 1992-02-25 |
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