Patents by Inventor Roman Roeder

Roman Roeder 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).

  • Publication number: 20260183978
    Abstract: Provided is a hair-guiding element for an electric shaver. The hair-guiding element has a skin-contacting surface for contacting skin, and a cutting element-facing surface for facing a cutting element, with the cutting element-facing surface facing in an opposite direction with respect to a direction faced by the skin-contacting surface. The hair-guiding element's periphery provides the hair-guiding element with a toothed profile comprising teeth arranged along a main axis of the hair-guiding element, with the teeth each comprising part of the skin-contacting surface and part of the cutting element-facing surface. Slots separate neighboring teeth from each other along the main axis. The slots include pairs of slots. Each of the pairs of slots includes a longer slot and a shorter slot. Further provided is a hair-cutting assembly comprising the hair-guiding element and the cutting element, and an electric shaver comprising such a hair-cutting assembly.
    Type: Application
    Filed: December 19, 2025
    Publication date: July 2, 2026
    Inventors: Renata Burghardt, Roman Roeder, Simone Langwasser
  • Publication number: 20260183979
    Abstract: Provided is a hair-guiding element for an electric shaver. The hair-guiding element has a skin-contacting surface for contacting skin, and a cutting element-facing surface for facing a cutting element, with the cutting element-facing surface facing in an opposite direction with respect to a direction faced by the skin-contacting surface. The hair-guiding element's periphery provides the hair-guiding element with a toothed profile comprising teeth arranged along a main axis of the hair-guiding element, with the teeth each comprising part of the skin-contacting surface and part of the cutting element-facing surface.
    Type: Application
    Filed: December 19, 2025
    Publication date: July 2, 2026
    Inventors: Renata Burghardt, Roman Roeder, Simone Langwasser
  • Publication number: 20230019742
    Abstract: The present invention relates to cutting body hair such as beard stubbles of multidays' beard. More particularly, the present invention relates to a cutter system for an electric shaver and/or trimmer, comprising an inner cutting element and an outer cutting element forming a pair of cooperating cutting elements with at least one row of comb-like outer cutting teeth extending parallel to a first axis (I), wherein said cutting elements are movably supported relative to each other. Skin irritation may be reduced by the at least one row of comb-like outer cutting teeth having, at a position of 0.2 mm away from the tip, a ratio between tooth width in a direction perpendicular to said first axis (I) and width of an opening slot between two adjacent teeth between 1.0 and 2.0.
    Type: Application
    Filed: July 14, 2022
    Publication date: January 19, 2023
    Inventors: Xiaolan Xu, Roman Roeder, Andreas Peter
  • Patent number: 10960557
    Abstract: Electric shaver provided with a handle and a shaver head including at least one drivable cutter element, wherein said shaver head is connected to said handle by means of a support structure providing for a swivel and/or tilting axis about which said shaver head may swivel or tilt relative to said handle, wherein said support structure includes a pair of link arms forming a four-joint linkage with each link arm having a head joint connected to a shaver head part and a handle joint connected to the handle or a base part connected thereto.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: March 30, 2021
    Assignee: Braun GMBH
    Inventors: Joachim Krauss, Uwe Fischer, Roman Roeder, Andreas Erndt, Detlef Gleich, Uwe Ludaescher
  • Patent number: 10836056
    Abstract: Electric shaver provided with a handle and a shaver head including at least one drivable cutter element, wherein said shaver head is connected to said handle by means of a support structure providing for a swivel and/or tilting axis about which said shaver head may swivel or tilt relative to said handle, wherein said support structure includes a pair of link arms forming a four-joint linkage with each link arm having a head joint connected to a shaver head part and a handle joint connected to the handle or a base part connected thereto.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: November 17, 2020
    Assignee: Braun GMBH
    Inventors: Joachim Krauss, Uwe Fischer, Roman Roeder, Andreas Erndt, Detlef Gleich, Uwe Ludaescher
  • Patent number: 10786913
    Abstract: An electrically driven device having a housing, an application head movably mounted on the housing, an electric motor mounted in the housing and including a drive shaft having a first rotary axis, a driven shaft for performing a movement relative to the housing, the driven shaft extending at least partially within the application head, and a first actuation member and a second actuation member. The actuation members are movably guided in the application head and wherein the first actuation member comprises a seat receiving a portion of the driven shaft for driving the first actuation member in the first direction.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: September 29, 2020
    Assignee: Braun GMBH
    Inventors: Joachim Krauss, Uwe Fischer, Roman Roeder, Andreas Peter
  • Publication number: 20190291288
    Abstract: An electrically driven device comprising a housing, an application head movably mounted on the housing, an electric motor mounted in the housing and comprising a drive shaft having a first rotary axis (I), a driven shaft for performing a movement relative to the housing, the driven shaft extending at least partially within the application head, and a first actuation member and a second actuation member, wherein the actuation members (8, 9) are movably guided in the application head and wherein the first actuation member comprises a seat receiving a portion of the driven shaft for driving the first actuation member in the first direction (D1).
    Type: Application
    Filed: March 22, 2019
    Publication date: September 26, 2019
    Inventors: Joachim Krauss, Uwe Fischer, Roman Roeder, Andreas Peter
  • Publication number: 20180085940
    Abstract: Electric shaver provided with a handle and a shaver head including at least one drivable cutter element, wherein said shaver head is connected to said handle by means of a support structure providing for a swivel and/or tilting axis about which said shaver head may swivel or tilt relative to said handle, wherein said support structure includes a pair of link arms forming a four-joint linkage with each link arm having a head joint connected to a shaver head part and a handle joint connected to the handle or a base part connected thereto.
    Type: Application
    Filed: September 25, 2017
    Publication date: March 29, 2018
    Inventors: Joachim Krauss, Uwe Fischer, Roman Roeder, Andreas Erndt, Detlef Gleich, Uwe Ludaescher
  • Publication number: 20180085939
    Abstract: Electric shaver provided with a handle and a shaver head including at least one drivable cutter element, wherein said shaver head is connected to said handle by means of a support structure providing for a swivel and/or tilting axis about which said shaver head may swivel or tilt relative to said handle, wherein said support structure includes a pair of link arms forming a four-joint linkage with each link arm having a head joint connected to a shaver head part and a handle joint connected to the handle or a base part connected thereto.
    Type: Application
    Filed: September 25, 2017
    Publication date: March 29, 2018
    Inventors: Joachim Krauss, Uwe Fischer, Roman Roeder, Andreas Erndt, Detlef Gleich, Uwe Ludaescher