Patents by Inventor Jan Polster

Jan Polster 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).

  • Scanning electron microscope and method of use thereof
    Patent number: 10504694
    Abstract: A scanning electron microscope comprises three objective lenses, including a distant objective lens and a close objective lens, which are of conventional type, and an immersion objective lens of the immersion type below the distant objective lens and the close objective lens. These three objective lenses can be controlled independently, therefor different combinations of active objective lenses can be achieved. The scanning electron microscope therefore offers various imaging modes. There is a possibility to switch between these imaging modes and therefore, choose the most suitable way of imaging for given application.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: December 10, 2019
    Assignee: TESCAN Brno, s.r.o.
    Inventors: Jaroslav Jiruse, Filip Lopour, Milos Havelka, Jan Polster, Josef Rysavka, Martin Zadrazil
  • Scanning Electron Microscope and Method of Use Thereof
    Publication number: 20170338078
    Abstract: A scanning electron microscope comprises three objective lenses, including a distant objective lens and a close objective lens, which are of conventional type, and an immersion objective lens of the immersion type below the distant objective lens and the close objective lens. These three objective lenses can be controlled independently, therefor different combinations of active objective lenses can be achieved. The scanning electron microscope therefore offers various imaging modes. There is a possibility to switch between these imaging modes and therefore, choose the most suitable way of imaging for given application.
    Type: Application
    Filed: May 22, 2017
    Publication date: November 23, 2017
    Applicant: TESCAN Brno, s.r.o.
    Inventors: Jaroslav Jiruse, Filip Lopour, Milos Havelka, Jan Polster, Josef Rysavka, Martin Zadrazil