Patents by Inventor Sergio de Almeida Graça

Sergio de Almeida Graça 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).

  • Device for winding a timepiece movement
    Patent number: 11144011
    Abstract: A component of a winding device, in particular an automatic winding device, of a timepiece movement, wherein it is made of austenitic stainless steel and wherein it comprises at least one friction surface hardened by carbon or nitrogen type atoms introduced into the austenitic stainless steel over a predetermined depth.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: October 12, 2021
    Assignee: ROLEX SA
    Inventors: Sergio de Almeida Graça, Vannina Linck
  • DEVICE FOR WINDING A TIMEPIECE MOVEMENT
    Publication number: 20180046141
    Abstract: A component of a winding device, in particular an automatic winding device, of a timepiece movement, wherein it is made of austenitic stainless steel and wherein it comprises at least one friction surface hardened by carbon or nitrogen type atoms introduced into the austenitic stainless steel over a predetermined depth.
    Type: Application
    Filed: August 3, 2017
    Publication date: February 15, 2018
    Applicant: ROLEX SA
    Inventors: Sergio de Almeida Graça, Vannina Linck