Patents by Inventor Njål Rotevatn

Njål Rotevatn 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).

  • Distributed double litz wire winding in open slots
    Patent number: 11936261
    Abstract: An electric machine comprising a stator with a plurality of open slots accommodating double-layer distributed winding with conductors transposed in the end-winding area. The conductors are litz wire conductors and the end-winding portions of the conductor are not twisted or turned around the axis of the conductor.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: March 19, 2024
    Assignee: Kongsberg Maritime AS
    Inventors: Jon Ivar Koa, Roar Furuhaug, Stev Erlend Skaar, Njål Rotevatn
  • Distributed Double Litz Wire Winding in Open Slots
    Publication number: 20220069652
    Abstract: An electric machine comprising a stator with a plurality of open slots accommodating double-layer distributed winding with conductors transposed in the end-winding area. The conductors are litz wire conductors and the end-winding portions of the conductor are not twisted or turned around the axis of the conductor.
    Type: Application
    Filed: February 6, 2020
    Publication date: March 3, 2022
    Inventors: Jon Ivar Koa, Roar Furuhaug, Stev Erlend Skaar, Njål Rotevatn