Patents by Inventor Dan Tonchev

Dan Tonchev 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).

  • Patent number: 10946670
    Abstract: Embodiments of the present invention feature apparatus and methods for manufacturing a personalized identification document including one or more dyes and/or pigments embedded in the substrate.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: March 16, 2021
    Assignee: GET GROUP HOLDINGS LIMITED
    Inventors: Dan Tonchev, Aref A. Al Salah, Maysoon Fehmi Jamal
  • Publication number: 20130176699
    Abstract: The present invention relates to a method of depositing a composition on a receiving substrate to form a printed object, the method comprising the steps of providing: (1) a receiving substrate; (2) a source of near-infra-red laser radiation which is a pulsed laser source or an array of pulsed lasers; (3) a support transparent to near-infra-red laser radiation, the support being positioned between the receiving substrate and the laser source; and a composition which is in contact with the transparent support and which is positioned between the transparent support and the receiving substrate, wherein the composition comprises: (a) a functional material in particulate form capable of absorbing near-infra-red laser radiation, (b) an oligomer and/or polymer, (c) water, and (d) optionally additives, the method comprising directing near-infra-red laser radiation through the transparent support and into the composition and thereby causing the composition to be transferred from the transparent support across a gap to
    Type: Application
    Filed: June 10, 2011
    Publication date: July 11, 2013
    Applicant: DZP TECHNOLOGIES LIMITED
    Inventors: Dan Tonchev, Stoeva Zlatka
  • Publication number: 20090314529
    Abstract: An aqueous printable electrical conductor (APEC) is defined as a dispersion comprising metal powder (with specific surface properties) dispersed into an aqueous acrylic, styrene/acrylic, urethane/acrylic, natural polymers vehicle (gelatine, soy protein, casein, starch or similar) or in a film forming reactive fatty acids mixture without a binder resin. The aqueous printable dispersion can be applied to substrates through different printing processes such as flexography, gravure, screen, dry offset or others. Exemplary substrates include: (1) coated paper, (2) uncoated paper, and (3) a variety of plastics with treated and untreated surfaces. When printed at a thickness of 1-8 ?m, heating to cure is not required as the dispersion cures at ambient temperatures.
    Type: Application
    Filed: June 8, 2006
    Publication date: December 24, 2009
    Inventors: Michael Petersen, Mykola Sherstyuk, Dan Tonchev, Colin Dwarika