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Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US396954924 Dic 197413 Jul 1976The United States of America as represented by the Librarian of CongressMethod of deacidifying paper
US405127623 Feb 197627 Sep 1977The United States Government as represented by the Librarian of CongressMethod of deacidifying paper
US411940011 Feb 197710 Oct 1978Societe DETEC S.A.Installation for disinfecting, by the action of formaldehyde
US480843312 Sep 198628 Feb 1989The British LibraryTreatment of archival material
US486356626 Abr 19885 Sep 1989Process for the preservation of printed cellulosic materials
US49274973 Ago 198822 May 1990Method of preventing cellulosic web degradation using an amine vapor
US510499720 Dic 199014 Abr 1992FMC CorporationMass treatment of cellulosic materials
US520807213 Nov 19914 May 1993FMC CorporationMass treatment of cellulosic materials
US52195247 May 199115 Jun 1993Everseal Preservation Labs., Inc.System and method for preserving acid-containing articles
US52386483 Jun 199224 Ago 1993Hermetic enclosure assembly for preservational storage and/or display of otherwise degradable objects
US526002327 Jul 19929 Nov 1993Everseal Preservation Labs, Inc.System and method for preserving acid-containing articles
US526424316 Jun 199223 Nov 1993FMC CorporationMass cellulose deacidification process
US53935622 Mar 199328 Feb 1995The United States of America as represented by the Librarian of CongressMethod of preserving and storing books and other papers
US539938010 Dic 199321 Mar 1995United Technologies CorporationBonding of two elastomeric materials by means of isocyanate vapors
US567930824 Oct 199521 Oct 1997Nippon Filing Co., Ltd.Method of preserving porous material
US582757810 Abr 199727 Oct 1998Process and device for deacidifying printed material and paper products of all kinds
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
US66452985 Ene 200111 Nov 2003Ruag MunitionActive substance and device for the deacidification of printed matter
US689045523 Ene 200410 May 2005The Sherwin-Williams CompanyArchival spray composition
US697463228 Feb 200513 Dic 2005The Sherwin-Williams CompanyArchival spray composition
US698441628 Feb 200510 Ene 2006The Sherwin-Williams CompanyArchival spray composition
US704123628 Feb 20059 May 2006The Sherwin-Williams CompanyArchival spray composition