Patents by Inventor Petri Leukkunen

Petri Leukkunen 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).

  • Apparatus and method for optically detecting the emissions of a plasma produced in a conductive liquid by means of electrodes with different areas in contact with the liquid
    Patent number: 11073479
    Abstract: An apparatus comprises: a chamber (100) configured to be filled with electrically conductive liquid (102); a first electrode (104) and a second electrode (106) located within the chamber (100); an optical radiation receiver (126); and an electrically conductive contact area (108) of the first electrode (104) and an electrically conductive contact area (110) of the second electrode (106) are configured to be in contact with the liquid (102) of the chamber (100) wherein the electrically conductive contact area (108) of the first electrode (104) is configured to be smaller than the electrically conductive contact area (110) of the second electrode (106).
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: July 27, 2021
    Assignee: OULUN YLIOPISTO
    Inventors: Petri Leukkunen, Kalle Blomberg Von Der Geest, Ari Mäkinen
  • APPARATUS AND METHOD FOR OPTICALLY DETECTING THE EMISSIONS OF A PLASMA PRODUCED IN A CONDUCTIVE LIQUID BY MEANS OF ELECTRODES WITH DIFFERENT AREAS IN CONTACT WITH THE LIQUID
    Publication number: 20200292458
    Abstract: An apparatus comprises: a chamber (100) configured to be filled with electrically conductive liquid (102); a first electrode (104) and a second electrode (106) located within the chamber (100); an optical radiation receiver (126); and an electrically conductive contact area (108) of the first electrode (104) and an electrically conductive contact area (110) of the second electrode (106) are configured to be in contact with the liquid (102) of the chamber (100) wherein the electrically conductive contact area (108) of the first electrode (104) is configured to be smaller than the electrically conductive contact area (110) of the second electrode (106).
    Type: Application
    Filed: December 16, 2016
    Publication date: September 17, 2020
    Inventors: Petri LEUKKUNEN, Kalle BLOMBERG VON DER GEEST, Ari MAKINEN
  • On-Demand Identity Attribute Verification and Certification For Services
    Publication number: 20140013108
    Abstract: An apparatus is caused to store identification data of a plurality of clients in memory; cause reception of information indicating at least one identifier of a device corresponding to a client requesting access to a service; verify the identity of the client device on the basis of the received identifier; detect whether or not the identified device is authorized to communicate with the apparatus on the basis of first predetermined criteria; upon detecting that the device is authorized, cause reception of in-formation indicating at least one identifier of the client from the identified device; verify the at least one identifier of the client on the basis of the received identifier and the stored identification data; and determine, on demand, whether to issue a certificate indicating the verifications on the basis of second predetermined criteria in order to enable the client to apply the certificate in accessing the service.
    Type: Application
    Filed: July 6, 2012
    Publication date: January 9, 2014
    Inventors: Jani Pellikka, Petri Leukkunen, Ijaz Ahmed