Patents by Inventor Jens Treu

Jens Treu 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).

  • Patent number: 11279053
    Abstract: Disclosed is a blade unit for a safety razor comprising a connecting structure for fixing the blade unit to a handle, a blade housing comprising a plurality of blades having cutting edges lying in a shaving plane, and a rear portion next to the plurality of blades, comprising a non-flexible back portion extending parallel to the shaving plane, and a lubricating pad having a flexible portion and a non-flexible portion, the non-flexible portion being arranged on and supported by the non-flexible back portion, the flexible portion extending rearwards from the non-flexible portion beyond the non-flexible back portion to define a rear edge of the rear portion of the blade unit, the flexible portion forming a convex skin-contacting surface when bending away from the shaving plane in use.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: March 22, 2022
    Assignee: KAI R&D CENTER CO., LTD.
    Inventors: Michael Lessmann, Jens Treu, Kesen Zeng, Yvonne Neumann, Hiroyuki Nakasuka
  • Patent number: 10870212
    Abstract: The present disclosure describes a blade unit (10) for a safety razor (8). The blade unit comprises a blade housing (12), a plurality of blades (18) disposed within the blade housing (12) to expose respective cutting edges (20) suitable for shaving, and a blade carrier supporting the plurality of blades (18). The blade housing (12) has a base on which the blade carrier is supported. The plurality of blades (18) and the blade carrier being displaceable downwards towards the base of the blade housing (12) during shaving, wherein an amount of downward displacement of the plurality of blades (18) and the blade carrier is limited by one or more protrusions extending upwards from the base of the blade housing (12).
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: December 22, 2020
    Assignee: BEIERSDORF AG
    Inventors: Jens Treu, Michael Lessmann, Kesen Zeng, Yvonne Neumann, Ralf Hagens, Philip Drescher
  • Patent number: 10807258
    Abstract: Disclosed is a blade unit for a safety razor, comprising a blade housing comprising a plurality of blades having respective cutting edges lying in a shaving plane and being arranged to exert a cutting action when moved across a user's skin; and a guard in front of the cutting edges and a cap to the rear of the cutting edges, the guard including an elongate lubricating strip, and the cap including a convex lubricating pad having a convex skin-contacting surface and a rear edge curved in a single arc shape along its entirety. A skin-contacting surface of the convex lubricating pad is greater than a skin-contacting surface of the elongate lubricating strip, the convex lubricating pad and the elongate lubricating strip together extend along at least 60% of an outer perimeter of the blade unit, and the convex lubricating pad extends along at least 30% of the outer perimeter of the blade unit.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: October 20, 2020
    Assignee: BEIERSDORF AG
    Inventors: Michael Lessmann, Jens Treu, Kesen Zeng, Yvonne Neumann, Hiroyuki Nakasuka, Ralf Hagens, Philip Drescher
  • Patent number: 10792827
    Abstract: Described is a razor handle in the form of an elongated body. The handle has a razor head end with a structure for connecting to a razor head and a free end opposite the razor head end. The handle further has a lower surface on the same side as the cutting edges of the blades when the razor head is connected to the razor handle and an upper surface opposite the lower surface. On the upper surface there is a first gripping area for providing a first gripping position for a finger or thumb of the user and a second gripping area for providing a second gripping position for the finger or thumb. The first and second gripping areas having textured surfaces and are separated from one another by a smooth area of the upper surface.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: October 6, 2020
    Assignee: BEIERSDORF AG
    Inventors: Jens Treu, Michael Lessmann, Yvonne Neumann, Kesen Zeng
  • Patent number: 10717202
    Abstract: Disclosed is a blade unit for a safety razor, comprising: a blade housing comprising a plurality of blades having respective cutting edges lying in a shaving plane and being arranged to exert a cutting action when moved across a user's skin in a shaving direction; and a guard in front of the cutting edges and a cap to the rear of the cutting edges, the guard including an elongate lubricating strip, the cap including a non-flexible concave back portion supporting a convex lubricating pad, the convex lubricating pad having a convex skin-contacting surface and a rear edge curved in a single arc shape along its entirety. No separate frame is provided around an outer perimeter for fixing the convex lubricating pad, so that the convex lubricating pad rear edge meets flush with the non-flexible concave back portion, providing a smooth, lubricated rear edge of the blade unit.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: July 21, 2020
    Assignee: BEIERSDORF AG
    Inventors: Michael Lessmann, Jens Treu, Kesen Zeng, Yvonne Neumann, Hiroyuki Nakasuka, Ralf Hagens, Philip Drescher
  • Patent number: 10391653
    Abstract: Embodiments of the invention include a blade unit for a safety razor, comprising: a connecting structure configured to fix the blade unit to a handle; a blade housing comprising a plurality of blades having respective cutting edges lying in a shaving plane and being arranged to exert a cutting action when moved across a user's skin in a shaving direction; and a rear portion arranged next to the plurality of blades in the shaving direction, comprising a non-flexible concave back portion that arcuately bends away from the shaving plane, and a convex lubricating pad arranged on and being supported by the non-flexible concave back portion and which extends up to a rear edge of the rear portion of the blade unit.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: August 27, 2019
    Assignee: BEIERSDORF AG
    Inventors: Michael Lessmann, Jens Treu, Kesen Zeng, Yvonne Neumann, Hiroyuki Nakasuka, Ralf Hagens, Philip Drescher
  • Publication number: 20180264663
    Abstract: The present disclosure describes a blade unit (10) for a safety razor (8). The blade unit comprises a blade housing (12), a plurality of blades (18) disposed within the blade housing (12) to expose respective cutting edges (20) suitable for shaving, and a blade carrier supporting the plurality of blades (18). The blade housing (12) has a base on which the blade carrier is supported. The plurality of blades (18) and the blade carrier being dispiaceabie downwards towards the base of the blade housing (12) during shaving, wherein an amount of downward displacement of the plurality of blades (18) and the blade carrier is limited by one or more protrusions extending upwards from the base of the blade housing (12).
    Type: Application
    Filed: September 9, 2015
    Publication date: September 20, 2018
    Inventors: Jens TREU, Michael LESSMANN, Kesen ZENG, Yvonne NEUMANN, Ralf HAGENS, Philip DRESCHER
  • Publication number: 20180079094
    Abstract: Disclosed is a blade unit for a safety razor, comprising: a blade housing comprising a plurality of blades having respective cutting edges lying in a shaving plane and being arranged to exert a cutting action when moved across a user's skin in a shaving direction; and a guard in front of the cutting edges and a cap to the rear of the cutting edges, the guard including an elongate lubricating strip, the cap including a non-flexible concave back portion supporting a convex lubricating pad, the convex lubricating pad having a convex skin-contacting surface and a rear edge curved in a single arc shape along its entirety. No separate frame is provided around an outer perimeter for fixing the convex lubricating pad, so that the convex lubricating pad rear edge meets flush with the non-flexible concave back portion, providing a smooth, lubricated rear edge of the blade unit.
    Type: Application
    Filed: July 24, 2015
    Publication date: March 22, 2018
    Inventors: Michael LESSMANN, Jens TREU, Kesen ZENG, Yvonne NEUMANN, Hiroyuki NAKASUKA, Ralf HAGENS, Philip DRESCHER
  • Publication number: 20170232625
    Abstract: Embodiments of the invention include a blade unit (10) for a safety razor (8), comprising: a connecting structure (14) configured to fix the blade unit to a handle (16); a blade housing (12) comprising a plurality of blades (18) having respective cutting edges (20) lying in a shaving plane and being arranged to exert a cutting action when moved across a user's skin in a shaving direction; and a rear portion (24) arranged next to the plurality of blades in the shaving direction, comprising a non-flexible concave back portion (26) that arcuately bends away from the shaving plane, and a convex lubricating pad (22) arranged on and being supported by the non-flexible concave back portion and which extends up to a rear edge (28) of the rear portion of the blade unit.
    Type: Application
    Filed: April 27, 2015
    Publication date: August 17, 2017
    Inventors: Michael LESSMANN, Jens TREU, Kesen ZENG, Yvonne NEUMANN, Hiroyuki NAKASUKA, Ralf HAGENS, Philip DRESCHER
  • Publication number: 20170225344
    Abstract: Disclosed is a blade unit for a safety razor, comprising a blade housing comprising a plurality of blades having respective cutting edges lying in a shaving plane and being arranged to exert a cutting action when moved across a user's skin; and a guard in front of the cutting edges and a cap to the rear of the cutting edges, the guard including an elongate lubricating strip, and the cap including a convex lubricating pad having a convex skin-contacting surface and a rear edge curved in a single arc shape along its entirety. A skin-contacting surface of the convex lubricating pad is greater than a skin-contacting surface of the elongate lubricating strip, the convex lubricating pad and the elongate lubricating strip together extend along at least 60% of an outer perimeter of the blade unit, and the convex lubricating pad extends along at least 30% of the outer perimeter of the blade unit.
    Type: Application
    Filed: July 24, 2015
    Publication date: August 10, 2017
    Inventors: Michael LESSMANN, Jens TREU, Kesen ZENG, Yvonne NEUMANN, Hiroyuki NAKASUKA, Ralf HAGENS, Philip DRESCHER
  • Publication number: 20170217035
    Abstract: A razor handle in the form of an elongated body, comprising: a razor head end with a connecting structure, to connect the razor handle to a razor head having a plurality of blades with respective cutting edges which lie in a shaving plane and exert a cutting action when moved across a user's skin in a shaving direction; a free end opposite the razor head end; a lower surface on the same side as the cutting edges of the blades when the razor head is connected to the razor handle; an upper surface opposite the lower surface; a first gripping area on the upper surface, to provide a first gripping position for a finger or thumb of the user; and a second gripping area on the upper surface, to provide a second gripping position for the finger or thumb, the first and second gripping areas having textured surfaces and being separated from one another by a smooth area of the upper surface.
    Type: Application
    Filed: January 24, 2017
    Publication date: August 3, 2017
    Inventors: Jens TREU, Michael LESSMANN, Yvonne NEUMANN, Kesen ZENG
  • Publication number: 20170217034
    Abstract: Disclosed is a blade unit for a safety razor comprising a connecting structure for fixing the blade unit to a handle, a blade housing comprising a plurality of blades having cutting edges lying in a shaving plane, and a rear portion next to the plurality of blades, comprising a non-flexible back portion extending parallel to the shaving plane, and a lubricating pad having a flexible portion and a non-flexible portion, the non-flexible portion being arranged on and supported by the non-flexible back portion, the flexible portion extending rearwards from the non-flexible portion beyond the non-flexible back portion to define a rear edge of the rear portion of the blade unit, the flexible portion forming a convex skin-contacting surface when bending away from the shaving plane in use.
    Type: Application
    Filed: April 27, 2015
    Publication date: August 3, 2017
    Inventors: Michael LESSMANN, Jens TREU, Kesen ZENG, Yvonne NEUMANN, Hiroyuki NAKASUKA
  • Publication number: 20100061946
    Abstract: A cosmetic preparation which comprises one or more selected perfume substances and one or more glucosyl glycerides.
    Type: Application
    Filed: November 14, 2007
    Publication date: March 11, 2010
    Applicant: BEIERSDORF AG
    Inventors: Cathrin Scherner, Rainer Kroepke, Ute Breitenbach, Jens Treu, Werner Zilz
  • Patent number: 7458944
    Abstract: The invention is a cosmetic cleaning product, comprising a massage applicator comprising a container body and a massage device having at least one massage pin device, the pin device having at least one first surface which is configured to be in contact with the surface to be massaged, wherein a force can be transmitted between the first surface of the massage pin device and the surface to be massaged, and wherein at least one predetermined massage characteristic feature selected from the group consisting of a predetermined hardness, a predetermined geometry and a predetermined elasticity exists in a region of the first surface of the massage pin device which is configured to be in contact with the surface to be massaged, and at least one adjusting device which can adjust the at least one predetermined massage characteristic feature, and a cosmetic cleaning formulation.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: December 2, 2008
    Assignee: Beiersdorf AG
    Inventors: Kathrin Liste, Olaf Rhode, Jens Treu
  • Publication number: 20050036975
    Abstract: The present invention is a shaving aid preparation suitable for electric shavers comprising 0.05 to 0.5% by weight of cross-linked polyacrylate, 1 to 7% by weight of glycerol, 0.1 to 1% by weight of xanthan gum, and water, wherein the preparation has a viscosity of 500 to 5000 mPa·s, and wherein the preparation is free of surfactants, in particular free of sarcosinates. The present invention also includes a method of shaving comprising applying the shaving aid preparation and a shaver comprising the preparation.
    Type: Application
    Filed: August 2, 2004
    Publication date: February 17, 2005
    Inventors: Kerstin Heike, Jens Treu, Katharina Post, Kathrin Wolter
  • Publication number: 20040267170
    Abstract: The invention is a cosmetic cleaning product, comprising a massage applicator comprising a container body and a massage device having at least one massage pin device, the pin device having at least one first surface which is configured to be in contact with the surface to be massaged, wherein a force can be transmitted between the first surface of the massage pin device and the surface to be massaged, and wherein at least one predetermined massage characteristic feature selected from the group consisting of a predetermined hardness, a predetermined geometry and a predetermined elasticity exists in a region of the first surface of the massage pin device which is configured to be in contact with the surface to be massaged, and at least one adjusting device which can adjust the at least one predetermined massage characteristic feature, and a cosmetic cleaning formulation.
    Type: Application
    Filed: April 5, 2004
    Publication date: December 30, 2004
    Applicant: Beiersdorf AG
    Inventors: Kathrin Liste, Olaf Rohde, Jens Treu
  • Patent number: 6589923
    Abstract: Shaped soap product comprising talc, one or more fatty acids having 12-22 carbon atoms in the form of their alkali soaps and one or more refatting substances with the simultaneous absence of alkyl (oligo)glycosides.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: July 8, 2003
    Assignee: Beiersdorf AG
    Inventors: Andreas Lenuck, Jens Treu, Erich Karcher
  • Patent number: 6541433
    Abstract: Shaped soap product comprising talc, one or more fatty acids having 12-22 carbon atoms in the form of their alkali soaps and one or more nonionic surfactants with the simultaneous absence of alkyl (oligo)glycosides.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: April 1, 2003
    Assignee: Beiersdorf AG
    Inventors: Michael Schultz, Jens Treu
  • Patent number: 6537953
    Abstract: Shaped soap product comprising talc, one or more fatty acids having 12-22 carbon atoms in the form of their alkali soaps and one or more amphoteric surfactants with the simultaneous absence of alkyl (oligo)glycosides.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: March 25, 2003
    Assignee: Beiersdorf AG
    Inventors: Michael Schultz, Jens Treu
  • Patent number: 6537954
    Abstract: Shaped soap product comprising talc, one or more fatty acids having 12-22 carbon atoms in the form of their alkali soaps and one or more anionic surfactants with the simultaneous absence of alkyl (oligo)glycosides.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: March 25, 2003
    Assignee: Beiersdorf AG
    Inventors: Michael Schultz, Jens Treu