| Patents for C04B 41 - After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone (26,090) | 
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| 01/02/1991 | EP0404858A1 Material for covering pouring devices.  | 
| 01/02/1991 | EP0373215A4 Porous inorganic membrane with reactive inorganic binder, and method of forming same  | 
| 01/01/1991 | USH872 Focussed laser beam melting of refractory, metal, or polymer rods to eject charged particles to form composite coating  | 
| 01/01/1991 | US4981839 Method of forming superconducting oxide films using zone annealing  | 
| 01/01/1991 | US4981822 Composite containing coated fibrous material  | 
| 01/01/1991 | US4981632 In situ oxidation  | 
| 01/01/1991 | US4981590 Composite ceramic micropermeable membrane, process and apparatus for producing such membrane  | 
| 01/01/1991 | US4981589 Multi-layer ceramic filter  | 
| 01/01/1991 | US4981539 Process for the structural reinforcement of fragile articles made of stone or agglomerates  | 
| 01/01/1991 | US4981394 Landfill  | 
| 12/28/1990 | CA2019949A1 Composite refractory material containing vegetal fibers  | 
| 12/27/1990 | WO1990015787A1 Diamond-coated member  | 
| 12/27/1990 | WO1990015786A1 Method of producing fired pattern  | 
| 12/27/1990 | EP0404410A1 Method for producing a thin oxidation resistant SiC coating on carbonaceous substrates  | 
| 12/27/1990 | EP0404409A1 Improved pack mixture composition for SiC pack cementation coating of carbonaceous substrates  | 
| 12/27/1990 | EP0403958A1 Compositions and methods for waterproofing structures formed from water-penetrable construction materials  | 
| 12/27/1990 | CA1278173C Process for adhering an oxide coating on a cobalt- enriched zone, and articles made from said process  | 
| 12/25/1990 | US4980341 Narrow link joining two areas of superconductive ceramic  | 
| 12/25/1990 | US4980239 Having sufficient adhesion strength  | 
| 12/25/1990 | US4980205 Anti-static composition and method for applying same  | 
| 12/25/1990 | US4980197 Method of producing metallic structures on inorganic non-conductors  | 
| 12/25/1990 | US4980062 Inorganic membrane  | 
| 12/25/1990 | US4979998 Process for forming a metal boride coating on a carbonaceous substrate  | 
| 12/25/1990 | US4979969 Heat resistant porous support  | 
| 12/25/1990 | US4979893 Protective coatings  | 
| 12/19/1990 | EP0403432A2 Pearlescent coating compositions  | 
| 12/19/1990 | EP0403104A1 Shaped articles  | 
| 12/19/1990 | EP0402946A1 Pattern sheet for burning and method of forming burned pattern  | 
| 12/19/1990 | EP0402886A1 Coating material based on (poly)borosiloxanes and method of producing glass coatings as well as their use  | 
| 12/19/1990 | EP0402677A2 Process for making cubic boron nitride from coated hexagonal boron nitride  | 
| 12/19/1990 | EP0402675A1 Method and apparatus for forming non-columnar deposits by chemical vapor deposition  | 
| 12/19/1990 | CN1047850A Inorganic color glazed building decoration sand and preparation thereof  | 
| 12/18/1990 | US4978420 Single chamber via etch through a dual-layer dielectric  | 
| 12/18/1990 | US4978418 Using ions having different ion energies  | 
| 12/18/1990 | CA1277891C Aqueous systems containing silanes for rendering masonry surfaces water repellant  | 
| 12/16/1990 | CA2018559A1 Coating compositions containing (poly)borosiloxanes and a process for preparing vitreous coatings  | 
| 12/14/1990 | CA2014923A1 Process for making cubic boron nitride from coated hexagonal boron nitride and abrasive particles and articles made therefrom  | 
| 12/13/1990 | DE3918981A1 Aq. resin dispersion giving solvent-resistant films - based on copolymer contg. substd. propyl (meth) acrylamide  | 
| 12/12/1990 | EP0402007A1 Glass composition for use in glazes  | 
| 12/12/1990 | EP0401519A1 Method for electrochemical treatment of porous building materials, particularly for drying and re-alkalization  | 
| 12/11/1990 | US4977302 Browning utensil for microwave ovens  | 
| 12/11/1990 | US4977013 Tranparent conductive coatings  | 
| 12/11/1990 | US4976899 Process for the production of a composite material with matrix and reinforcing fibers of carbon  | 
| 12/06/1990 | DE3932730C1 Sealing non-glazed ceramic surface - comprises applying pre:polymer dispersion onto surface and firing to harden fluoro:carbon  | 
| 12/06/1990 | DE3917867A1 Electroless gold plating - of tungsten or molybdenum metallisations esp. on electronic ceramic components  | 
| 12/05/1990 | EP0401051A2 Concrete non-cure coating material, and concrete products with surface pattern or decoration using said material and production process therefor  | 
| 12/05/1990 | EP0400560A1 Method of producing high density fiber reinforced composite material  | 
| 12/04/1990 | US4975302 Surface-coated SiC whiskers, processes for preparing the same, ceramic reinforced with the same, and process for preparing said reinforced ceramic  | 
| 12/04/1990 | US4975230 Method of making an open pore structure  | 
| 12/04/1990 | CA1277129C Pyrolytic carbon coating of media improves gravel packing and fracturing capabilities  | 
| 12/01/1990 | CA2017938A1 Concrete non-cure coating material, as well as concrete products or concrete structural products with surface pattern or decoration using said material and production process therefore  | 
| 11/30/1990 | CA2017884A1 Glass composition  | 
| 11/29/1990 | WO1990014529A1 Method of dynamically balancing ceramic turbine wheels  | 
| 11/29/1990 | WO1990012835A3 Hydridosiloxanes as precursors to ceramic products  | 
| 11/28/1990 | EP0399621A1 Graphite-refractory metal composite  | 
| 11/28/1990 | EP0399407A1 Impermeable coating for refractory material, coated piece of this material and coating process  | 
| 11/27/1990 | US4973526 Method of forming ceramic coatings and resulting articles  | 
| 11/27/1990 | US4973389 Process for making a high temperature-resistant metal layer on a ceramic surface  | 
| 11/27/1990 | CA1277067C Fluoropolymer coating and casting compositions and films derived therefrom  | 
| 11/27/1990 | CA1276969C Titanium nitride electrodes for thermoelectric generators  | 
| 11/27/1990 | CA1276843C Composite hard chromium compounds for thermal spraying  | 
| 11/22/1990 | EP0398374A2 Method of and apparatus for fabricating oxide superconducting wire  | 
| 11/22/1990 | EP0398356A1 Method of preventing the deterioration of a hardened cement-based mass  | 
| 11/22/1990 | EP0398164A2 Method of fabricating oxide superconducting film  | 
| 11/22/1990 | EP0398117A2 Process for rehabilitating internally reinforced concrete by removal of chlorides  | 
| 11/22/1990 | DE4001180C1 Refractory ceramic prod. - impregnated with thixotropic slurry including methyl cellulose  | 
| 11/21/1990 | CN1047071A Method for producing marble pattern and its products  | 
| 11/20/1990 | US4971948 Method of patterning superconductive oxide films by use of diffusion barrier  | 
| 11/20/1990 | US4971939 Process for applying a catalyst layer composed of noble metals and/or noble-metal compounds to a support made of ceramic material  | 
| 11/20/1990 | US4971830 Cermet electrodes; sintering doped zirconia into a porous metal electrode  | 
| 11/20/1990 | US4971779 Pyrolysis of polybobazines to boron nitride  | 
| 11/20/1990 | US4971740 Method for manufacturing a sintered body of silicon nitride  | 
| 11/20/1990 | US4971696 Inorganic porous membrane  | 
| 11/20/1990 | US4971631 Compositions and methods for cleaning hard surfaces  | 
| 11/20/1990 | US4970986 Apparatus for synthetic diamond deposition including spring-tensioned filaments  | 
| 11/20/1990 | CA1276530C Soluble fluorinated cycloalkane sulfonate surfactant additives for nh4f/hf oxide etchant solutions  | 
| 11/20/1990 | CA1276509C Particle displacement  | 
| 11/15/1990 | WO1990013488A1 In-situ polymeric membrane for cavity sealing and mitigating transport of liquid hazardous materials  | 
| 11/15/1990 | WO1990013406A1 Method and apparatus for treating a surface of granite with a high temperature plasma jet  | 
| 11/15/1990 | DE3915116C1 Electrically non-conducting crucible - includes pyrolytic carbon layer and aluminium nitride or aluminium oxide-contg. ceramic  | 
| 11/14/1990 | EP0397156A1 Structural element of sintered polycrystalline ceramic, process for its production and process for false twisting of synthetic yarn by using this structural element  | 
| 11/14/1990 | EP0396988A2 Aluminium oxide powder having improved processing properties and process for producing  | 
| 11/13/1990 | WO1990013605A1 Magnetic materials and products made therefrom  | 
| 11/13/1990 | US4970282 Pyrolysis to ceramic oxidation-protective coating  | 
| 11/13/1990 | US4970196 Method and apparatus for the thin film deposition of materials with a high power pulsed laser  | 
| 11/13/1990 | US4970095 Method for coating substrates with boron nitride  | 
| 11/13/1990 | CA2054741A1 Magnetic materials and products made therefrom  | 
| 11/12/1990 | CA2016522A1 Aluminum oxide powders having improved processing properties, processes for their production and their use  | 
| 11/08/1990 | DE3914477A1 Verfahren zum kontaktieren eines supraleiters Method of contacting a superconductor  | 
| 11/08/1990 | DE3744747C2 Ceramic substrates with chemically roughened surfaces  | 
| 11/07/1990 | EP0396478A2 Processes of forming conductive films and articles so produced  | 
| 11/07/1990 | EP0396329A1 Method for reducing fouling  | 
| 11/07/1990 | EP0396147A2 Ceramic preforms for metal matrix composites, processes for their preparation and composites obtained therefrom  | 
| 11/07/1990 | EP0396146A2 Ceramic preforms having high mechanical strength, a process for their preparation and metal matrix composites obtained therefrom  | 
| 11/07/1990 | CN1046727A Method for producing powdered coal ash brick  | 
| 11/06/1990 | US4968665 Target used for formation of superconductive oxide film, process of producing thereof, and process of forming superconductive oxide film on substrate using the same  | 
| 11/06/1990 | US4968556 Vinyl halide polymer and other addition polymer  | 
| 11/06/1990 | US4968537 Use of perfluoropolyether emulsions for protecting stony materials from atmospheric agents  | 
| 11/06/1990 | US4968426 Fine alpha alumina ultrafiltration membranes  | 
| 11/06/1990 | CA1275775C Concrete repair kit  |