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Patente

Referenziert von

Zitiert von PatentEingetragenAusgestelltUrsprünglich Bevollmächtigter Titel
US399823231. Okt. 197421. Dez. 1976Filtering tobacco smoke
US406236819. Juni 197513. Dez. 1977Brown & Williamson Tobacco CorporationTobacco-smoke filters
US415643129. März 197729. Mai 1979Smoke processing
US466468327. Jan. 198612. Mai 1987Pall CorporationSelf-supporting structures containing immobilized carbon particles and method for forming same
US466505013. Aug. 198412. Mai 1987Pall CorporationSelf-supporting structures containing immobilized inorganic sorbent particles and method for forming same
US490626320. Apr. 19896. März 1990Adsorption filter with high air permeability
US498150116. Mai 19901. Jan. 1991Adsorption filter with high air permeability
US50334658. Juni 198923. Juli 1991Minnesota Mining and Manufacturing CompanyBonded adsorbent structures and respirators incorporating same
US507813226. Apr. 19917. Jan. 1992Minnesota Mining and Manufacturing CompanyBonded adsorbent structures and respirators incorporating same
US509112929. Dez. 198925. Febr. 1992Institut Francais du PetroleMethod for manufacturing a filter cartridge
US53324261. Juli 199326. Juli 1994Minnesota Mining and Manufacturing CompanyAgglomerated activated carbon air filter
US536002312. Juni 19921. Nov. 1994R. J. Reynolds Tobacco CompanyCigarette filter
US540489011. Juni 199311. Apr. 1995R. J. Reynolds Tobacco CompanyCigarette filter
US54531188. Aug. 199426. Sept. 1995Ultra Pure Systems, Inc.Carbon-filled fuel vapor filter system
US568532324. Juli 199511. Nov. 1997R. J. Reynolds Tobacco CompanyDisposable filter attachment for smoking articles
US627717820. Jan. 199521. Aug. 20013M Innovative Properties CompanyRespirator and filter cartridge
US648554628. Jan. 200026. Nov. 2002Beth-El Zikhron-YaaqovFiltering device and cartridges for fluids and gases
US665262924. Juli 200225. Nov. 2003Helsa-Werk Helmut Sandler GmbH & Co. KGFilter apparatus
US702216214. Febr. 20024. Apr. 2006Forschungszentrum Karlsruhe GmbHUse of a material and a method for retaining polyhalogenated compounds
US710141928. Okt. 20035. Sept. 2006Donaldson Company, Inc.Air filter assembly for low temperature catalytic processes
US71444457. Febr. 20035. Dez. 2006L'Air Liquide, Société Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges ClaudeUse of an adsorbent in solid foam form for the purification or separation of gases
US716036616. Jan. 20049. Jan. 2007Mast Carbon International Ltd.Filter element
US723755830. Sept. 20033. Juli 2007R. J. Reynolds Tobacco CompanyFiltered cigarette incorporating an adsorbent material
US724067830. Sept. 200310. Juli 2007R. J. Reynolds Tobacco CompanyFiltered cigarette incorporating an adsorbent material
US766960430. Sept. 20032. März 2010R.J. Reynolds Tobacco CompanyFiltered cigarette incorporating an adsorbent material
US775867410. Aug. 200620. Juli 2010Donaldson Company, Inc.Air filter assembly for low temperature catalytic processes
US78068178. März 20055. Okt. 2010Acetate Products Ltd.Process for making filter tow
US782799622. Dez. 20039. Nov. 2010Philip Morris USA Inc.Amphiphile-modified sorbents in smoking articles and filters
US78279975. Juni 20079. Nov. 2010R. J. Reynolds Tobacco CompanyFiltered cigarette incorporating an adsorbent material
US785699030. Sept. 200328. Dez. 2010R. J. Reynolds Tobacco CompanyFiltered cigarette incorporating an adsorbent material
US806601130. Sept. 200329. Nov. 2011R. J. Reynolds Tobacco CompanyFiltered cigarette incorporating an adsorbent material
US807936921. Mai 200820. Dez. 2011R.J. Reynolds Tobacco CompanyMethod of forming a cigarette filter rod member
US811447510. Juli 200914. Febr. 2012Philip Morris USA Inc.Adsorbents for smoking articles comprising a non-volatile organic compound applied using a supercritical fluid
US811955520. Nov. 200821. Febr. 2012R. J. Reynolds Tobacco CompanyCarbonaceous material having modified pore structure
US81863604. Apr. 200729. Mai 2012R.J. Reynolds Tobacco CompanyCigarette comprising dark air-cured tobacco

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