Patents by Inventor Bernd Steffes
Bernd Steffes has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10300159Abstract: A method for deactivating preferably odor-relevant molecules that is distinguished by the following steps is proposed: generating a plasma; deactivating preferably odor-relevant molecules by the effect of hot electrons of the plasma on the molecules to be deactivated.Type: GrantFiled: May 4, 2012Date of Patent: May 28, 2019Assignee: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.Inventors: Gregor Morfill, Tetsuji Shimizu, Julia Zimmermann, Yangfang Li, Bernd Steffes
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Publication number: 20180228933Abstract: The invention relates to an apparatus (1) for producing a plasma, having at least one first electrode (3), at least one second electrode (5), which is arranged at a distance from the first electrode (3), a voltage source (7), which is connected to at least one electrode (3,59) selected from the first electrode (3) and the second electrode (5) such that a potential difference between the at least one first electrode (3) and the at least one second electrode (5) can be produced by the voltage source (7), wherein the at least one first electrode (3) and the at least one second electrode (5) define at least one discharge path (9) for an electrical discharge in a discharge region (11) between the at least one first electrode (3) and the at least one second electrode (5).Type: ApplicationFiled: July 25, 2016Publication date: August 16, 2018Inventors: Gregor Morfill, Yangfang Li, Tetsuji Shimizu, Bernd Steffes
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Patent number: 9889218Abstract: The invention relates to an electrode arrangement (1) for generating a non-thermal plasma, comprising: a layer-shaped first electrode (2) made of an electrically conductive material, a layer-shaped second electrode (4) made of an electrically conductive material, wherein the second electrode (4) is electrically insulated from the first electrode (2), and a dielectric barrier (3) being arranged between the first electrode (2) and the second electrode (4), so that the non-thermal plasma is generated by a dielectric barrier discharge. The inventive electrode arrangement is characterized in that at least one of the first electrode (2) and the second electrode (4) comprises several perforations which are distributed over the electrode.Type: GrantFiled: March 13, 2009Date of Patent: February 13, 2018Assignee: MAX-PLANCK-GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN E.V.Inventors: Gregor Eugen Morfill, Bernd Steffes, Tetsuji Shimizu
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Patent number: 8926920Abstract: The invention relates to a plasma source (1) comprising: a conduit (3, 4) carrying a gas flow and an ionization chamber (10) in which a plasma is generated, wherein the ionization chamber (10) is connected to the conduit (3, 4), so that the gas flow in the conduit (3, 4) carries away gas particles out of the ionization chamber (10) thereby reducing the pressure in the ionization chamber (10).Type: GrantFiled: May 2, 2008Date of Patent: January 6, 2015Assignee: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.Inventors: Gregor Eugen Morfill, Bernd Steffes
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Publication number: 20140147333Abstract: A method for deactivating preferably odour-relevant molecules that is distinguished by the following steps is proposed: generating a plasma; deactivating preferably odour-relevant molecules by the effect of hot electrons of the plasma on the molecules to be deactivated.Type: ApplicationFiled: May 4, 2012Publication date: May 29, 2014Applicant: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.Inventors: Gregor Morfill, Tetsuji Shimizu, Julia Zimmermann, Yangfang Li, Bernd Steffes
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Publication number: 20130064726Abstract: The invention relates to an appliance (18) for at least partially disinfecting/sterilising a contaminated surface (21), wherein the appliance (18) comprises an integrated plasma source for at least partially disinfecting/sterilising the surface by generating a non-thermal atmospheric plasma on the surface thereby reducing the concentration of pathogenic germs on the surface.Type: ApplicationFiled: May 19, 2011Publication date: March 14, 2013Applicants: Adtec Europe Ltd., Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.Inventors: Gregor Morfill, Tetsuji Shimizu, Yang-Fang Li, Takuya Urayama, Julia Zimmermann, Bernd Steffes
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Publication number: 20120046602Abstract: The invention relates to a plasma applicator (1) for applying a non-thermal plasma to a surface (2), particularly for the plasma treatment of living tissue and especially for the plasma treatment of wounds (2), comprising a sealing cover (4) for covering a portion of the surface thereby enclosing a cavity between the sealing cover (4) and the surface (2), wherein the non-thermal plasma is provided in the cavity so that the non-thermal plasma contacts the surface (2). Further, the invention relates to a corresponding method.Type: ApplicationFiled: September 21, 2009Publication date: February 23, 2012Inventors: Gregor Morfill, Bernd Steffes, Tetsuji Shimizu, RĂ©ne Pompl, Tetiana Nosenko, Wilhelm Stolz, Georg Isbary, Hans-Ulrich Schmidt
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Publication number: 20120046597Abstract: The invention relates to an electrode arrangement (1) for generating a non-thermal plasma, comprising: a layer-shaped first electrode (2) made of an electrically conductive material, a layer-shaped second electrode (4) made of an electrically conductive material, wherein the second electrode (4) is electrically insulated from the first electrode (2), and a dielectric barrier (3) being arranged between the first electrode (2) and the second electrode (4), so that the non-thermal plasma is generated by a dielectric barrier discharge. The inventive electrode arrangement is characterized in that at least one of the first electrode (2) and the second electrode (4) comprises several perforations which are distributed over the electrode.Type: ApplicationFiled: March 13, 2009Publication date: February 23, 2012Applicant: Max-Planck-Gesellschaft Zur Forderung der Wissenschaften e.VInventors: Gregor Eugen Morfill, Bernd Steffes, Tetsuji Shimizu
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Publication number: 20120039747Abstract: The invention relates to a treating device (1) for treating a body part of a patient with a non-thermal plasma, particularly for sterilizing a hand of a human being, said treating device (1) comprising a housing (2) for temporarily receiving the body part within the housing (2) during the treatment and for applying the plasma to the body part within the housing (2), and an inlet opening (3) being arranged in the housing (2) for introducing the body part through the inlet opening (3) into the housing (2).Type: ApplicationFiled: October 19, 2009Publication date: February 16, 2012Applicant: Max-Planck-Gesellschaft Zur Forderung der Wissenschaften e.V.Inventors: Gregor Morfill, Bernd Steffes, Tetsuji Shimizu
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Publication number: 20110171188Abstract: The invention relates to a non-thermal plasma for treatment of a surface, particularly for the treatment of a wound (1), wherein the plasma comprises a partially ionized carrier gas and at least one additive, which preferably has a sterilizing effect on the treated surface and/or improves the healing of the wound (1). Further, the invention relates to a corresponding apparatus and method.Type: ApplicationFiled: August 17, 2009Publication date: July 14, 2011Applicant: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.VInventors: Gregor Morfill, Bernd Steffes, Tetsuji Shimizu, Rene Pompl, Tetiana Nosenko, Wilhelm Stolz, Georg Isbary, Hans-Ulrich Schmidt
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Publication number: 20100130911Abstract: The invention relates to a plasma source (1) comprising: a conduit (3, 4) carrying a gas flow and an ionization chamber (10) in which a plasma is generated, wherein the ionization chamber (10) is connected to the conduit (3, 4), so that the gas flow in the conduit (3, 4) carries away gas particles out of the ionization chamber (10) thereby reducing the pressure in the ionization chamber (10).Type: ApplicationFiled: May 2, 2008Publication date: May 27, 2010Inventors: Gregor Eugen Morfill, Bernd Steffes
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Patent number: 7683342Abstract: A plasma source, particularly for disinfection of wounds, comprising: an ionization chamber having an inlet for introducing a gas into the ionization chamber and further having an outlet for dispensing the ionized gas onto an object; several ionization electrodes being disposed within the ionization chamber for ionizing the gas and a predetermined ratio of the electrode-electrode distance on the one hand and the electrode-wall distance on the other hand, wherein the ratio is in a range approximately between about 1.8 and about 2.2.Type: GrantFiled: September 11, 2006Date of Patent: March 23, 2010Assignees: Max-Planck Gesellschaft zur Forderung der Wissenschaften e. V., Adtec Europe LimitedInventors: Gregor Morfill, Tetsuji Shimizu, Bernd Steffes, Shuitsu Fujii
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Publication number: 20080237484Abstract: A plasma source, particularly for disinfection of wounds, comprising: an ionization chamber having an inlet for introducing a gas into the ionization chamber and further having an outlet for dispensing the ionized gas onto an object; several ionization electrodes being disposed within the ionization chamber for ionizing the gas and a predetermined ratio of the electrode-electrode distance on the one hand and the electrode-wall distance on the other hand, wherein the ratio is in a range approximately between about 1.8 and about 2.2.Type: ApplicationFiled: September 11, 2006Publication date: October 2, 2008Applicants: Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V., Adtec Europe LimitedInventors: Gregor Morfill, Tetsuji Shimizu, Bernd Steffes, Shuitsu Fujii