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Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US426246327 Dic 197821 Abr 1981Bureau d'Etudes Techniques J. Hapel & Cie Ingenieurs Conseils ChillouPressed blocks for interlocked assembly
US45149496 May 19837 May 1985Interlocking system for building walls
US462720915 Abr 19859 Dic 1986Interlocking blocks and construction system comprising said blocks
US496597915 May 198930 Oct 1990Concrete block wall
US499011626 Jun 19895 Feb 1991Combining structure for toy blocks
US555406224 May 199510 Sep 1996Building word blocks
US565760020 Jun 199419 Ago 1997AAB Building Systems Inc.Web member for concrete form walls
US580972720 Dic 199622 Sep 1998AAB Building System, Inc.Web member for concrete form walls
US58529067 Ago 199729 Dic 1998Internal-wall drain system
US596060414 Nov 19975 Oct 1999Interlocking masonry unit and wall
US60332824 Feb 19997 Mar 2000Youth Toy Enterprise Co., Ltd.Multipurpose built-up measuring device
US616135723 Feb 200019 Dic 2000Bidirectionally interlocking, hollow brick wall system
US631469725 Oct 199913 Nov 2001Concrete form system connector link and method
US631804025 Oct 199920 Nov 2001Concrete form system and method
US633630125 Oct 19998 Ene 2002Concrete form system ledge assembly and method
US694828217 Abr 200327 Sep 2005Allan Block CorporationInterlocking building block
US70323579 Oct 200225 Abr 2006ARXX Building Products, Inc.Bridging member for concrete form walls
US77122816 Abr 200511 May 2010Allan Block CorporationInterlocking building block
USD34255324 Nov 199221 Dic 1993Interlego A.G.Element for a toy building set
USD38743122 Feb 19969 Dic 1997Hollow construction block
USRE4199413 Ago 199914 Dic 2010ARXX Building Products, Inc.Web member for concrete form walls