Patents by Inventor Luuk Danes

Luuk Danes 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).

  • Issuing electronic vouchers
    Patent number: 8468100
    Abstract: A method of issuing electronic vouchers (Vi) which a user (U) may submit to a merchant (M) in exchange for goods or services comprises the steps of: an issuer (I) receiving an electronic declaration (Di?1) from the user (U), the issuer verifying the electronic declaration (Di?1), and the issuer issuing a new electronic voucher (Vi) for use with the merchant (M) only if the electronic declaration comprises a signature (SM) of a merchant on a previous electronic voucher (Vi?1). The vouchers (Vi) and declarations (Di?1) are preferably blinded by the user such that the user remains anonymous. However, the electronic vouchers (Vi) may contain the identity (Q) of the user (U), which identity may be revealed when a voucher is submitted more than once.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: June 18, 2013
    Assignee: Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNO
    Inventors: Thijs Veugen, Luuk Danes
  • Issuing Electronic Vouchers
    Publication number: 20100257111
    Abstract: A method of issuing electronic vouchers (Vi) which a user (U) may submit to a merchant (M) in exchange for goods or services comprises the steps of: an issuer (I) receiving an electronic declaration (Di?1) from the user (U), the issuer verifying the electronic declaration (Di?1), and the issuer issuing a new electronic voucher (Vi) for use with the merchant (M) only if the electronic declaration comprises a signature (SM) of a merchant on a previous electronic voucher (Vi?1). The vouchers (Vi) and declarations (Di?1) are preferably blinded by the user such that the user remains anonymous. However, the electronic vouchers (Vi) may contain the identity (Q) of the user (U), which identity may be revealed when a voucher is submitted more than once.
    Type: Application
    Filed: July 30, 2008
    Publication date: October 7, 2010
    Applicant: Nederlandse Organisatie voor toegepast- natuurwetenschappelijk Onderzoek TNO
    Inventors: Thijs Veugen, Luuk Danes