| Patents for C04B 32 - Artificial stone not provided for in other groups of this subclass (841) |
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| 08/11/1981 | CA1106735A1 Three-dimensional, multi-directional structure |
| 08/06/1981 | WO1981002155A1 Method for the preparation of melted silicate material |
| 08/05/1981 | EP0033133A1 Process for producing molten silicate materials |
| 07/01/1981 | EP0031187A1 Process for the manufacture of objects from water-hardened material |
| 06/23/1981 | US4274880 Treatment of hazardous waste |
| 04/29/1981 | EP0027633A1 Process for producing a heat insulating body |
| 04/22/1981 | EP0027273A1 Fibrillated and orientated reinforcement films made of at least one film-forming, orientable synthetic polymer, process for the preparation of such films and hydraulic binder-based products containing these films |
| 02/11/1981 | EP0023587A1 Temperature-stabilized pyrogenic oxide mixture of silica oxide, process for its production and its use |
| 01/21/1981 | EP0022581A1 Thermal-insulation body |
| 01/20/1981 | US4246075 Electrodeposition |
| 01/13/1981 | US4244761 Grooves, refractory cement, frame, contraction prevention |
| 01/07/1981 | EP0021362A1 Process and device for the manufacture of reinforced concrete slabs |
| 12/30/1980 | US4242407 Process for the manufacture of articles of water-hardening material |
| 12/30/1980 | CA1092388A1 Method of incorporating multifilament strands of carbon fibers into cement to produce reinforced structures having improved flexural strengths |
| 12/09/1980 | US4238445 Process for manufacturing gypsum board |
| 10/15/1980 | EP0017504A1 Cement slurry reclamation system and method |
| 10/07/1980 | US4226542 Cement slurry reclamation system and method |
| 08/26/1980 | US4219597 Reinforcement |
| 07/23/1980 | EP0013387A1 Agglomerated particles prepared from highly dispersed metal oxides and opacifiers, method for their preparation and their use |
| 07/15/1980 | US4212925 Treating silicon dioxide with an organosilicon compound |
| 06/24/1980 | US4209335 Method and composition, including particular additive for hydraulic cement, for fixing waste matter |
| 03/25/1980 | US4194521 Fire protective structure |
| 03/11/1980 | US4192745 Reclamation of cement slurry |
| 03/11/1980 | CA1073476A1 Treatment of waste |
| 09/25/1979 | US4169182 Layer of copoer or copper oxide on glass fiber |
| 08/08/1979 | EP0003245A1 Process for the manufacture of articles of water-hardening material |
| 06/27/1979 | EP0002502A1 Method for improving heat insulating materials |
| 06/12/1979 | CA1056155A1 Refractory/insulating modules |
| 04/03/1979 | CA1052021A1 Fixing agent of heavy metal |
| 03/06/1979 | US4142933 Manufacture of insulating products |
| 01/16/1979 | US4134774 Aggregate for concrete and concrete composition containing same |
| 01/02/1979 | US4132558 Process for treating a sludge or drainage containing chromium (VI) compounds with a solidifying agent |
| 10/10/1978 | CA1040223B Fiber reinforcing composites |
| 09/26/1978 | US4116709 Patch material for chuck holes in pavement |
| 06/13/1978 | US4094380 Multi layer sound-proofing structure |
| 11/30/1976 | US3994363 Composite noise absorption product |
| 06/08/1976 | US3962142 Electrically conducting concrete |
| 03/30/1976 | US3947284 Method for solidifying sludge |
| 03/30/1976 | US3947283 Method for solidifying sludge |
| 03/09/1976 | US3942966 Methods of preparing ceramic material |
| 01/20/1976 | US3933514 High strength, water resistant silicate foam |