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Patentes

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Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US405127623 Feb 197627 Sep 1977The United States Government as represented by the Librarian of CongressMethod of deacidifying paper
US452284325 Ene 198411 Jun 1985Deacidification of library materials
US52327451 Mar 19913 Ago 1993Manville CorporationMethod of neutralizing acid containing compositions present in an insulation board
US540973631 Ago 199325 Abr 1995Preservation Technologies, Inc.Deacidification of cellulose based materials using perfluorinated carriers
US543382721 Dic 199318 Jul 1995Pulp and Paper Research Institute of CanadaMethod for the deacidification of papers and books
US55252969 Nov 199311 Jun 1996William K. Hollinger, Jr.
Conservation Resources International, Inc.
Article and method for archival preservation with an organophilic, hydrophobic or acid-resistant molecular sieve
US563305430 Mar 199227 May 1997Conservation Resources International, Inc.Archival materials and packaging
US56836625 Jun 19954 Nov 1997Conservation Resources International, Inc.Article and method for archival preservation with an organophilic, hydrophobic or acid-resistant molecular sieve
US569338416 Mar 19932 Dic 1997Conservation Resources International, Inc.Article and method for preserving an archival article
US57141205 Jun 19953 Feb 1998Conversation Resources International, Inc.Method for preserving an archival document or object
US60804483 Abr 199827 Jun 2000Preservation Technologies LPDeacidification of cellulose based materials using hydrofluoroether carriers
US621416513 Jul 199910 Abr 2001Joseph Zicherman
Donald Perkins
Method for deacidification of papers and books by fluidizing a bed of dry alkaline particles
US634209812 May 200029 Ene 2002Preservation Technologies LPDeacidification of cellulose based materials using hydrofluoroether carriers
US642888117 Sep 19996 Ago 2002Rupaco Paper CorporationMatboard/backing board and methods of manufacture and use
US66418772 Mar 20014 Nov 2003Article and method for retarding the deterioration rate of acidic paper
US66452985 Ene 200111 Nov 2003Ruag MunitionActive substance and device for the deacidification of printed matter

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