Patents by Inventor Ratka Damnjanovic

Ratka Damnjanovic 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: 11878182
    Abstract: A method of modulating neural activity using a combination of electrical and optical stimulation transmitted via a gold nanoparticle covered nanoelectrode is presented. The combination of short-duration green visible light optical pulses with the complementary sub-threshold level electric current pulses are capable of producing action potentials in neurons. Cells were found to have a greater than a 5× survival rate using this hybrid stimulation method as compared to pure plasmonic/optical stimulation. The cell stimulation success rate was 3× greater with hybrid stimulation.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: January 23, 2024
    Assignee: University of South Florida
    Inventors: Ratka Damnjanovic, Parveen Bazard, Robert Dana Frisina, Venkat Rama Bhethanabotla
  • Patent number: 6833184
    Abstract: This invention relates to window films and more particularly to a low haze colored window film wherein coloration of the window film is effected with a pigment. The invention further is concerned with a process for the manufacture of the pigmented window film. The window film of this invention is pigmented with a pigment having small particle size wherein the particles are coated with a resin binder which encapsulates the pigment particles. The encapsulated pigment particles are blended into an adhesive which is compatible with the resin binder which is used to encapsulate the pigment particles. The resulting adhesive is used to secure one or more film layers of a composite window film structure together. The resulting films have haze levels which approximate the haze levels of dyed window films. The window films of this invention have outstanding light stability.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: December 21, 2004
    Assignee: Film Technologies International, Inc.
    Inventors: Ratka Damnjanovic, Haibin Huang
  • Publication number: 20030064215
    Abstract: This invention relates to window films and more particularly to a low haze colored window film wherein coloration of the window film is effected with a pigment. The invention further is concerned with a process for the manufacture of the pigmented window film. The window film of this invention is pigmented with a pigment having small particle size wherein the particles are coated with a resin binder which encapsulates the pigment particles. The encapsulated pigment particles are blended into an adhesive which is compatible with the resin binder which is used to encapsulate the pigment particles. The resulting adhesive is used to secure one or more film layers of a composite window film structure together. The resulting films have haze levels which approximate the haze levels of dyed window films. The window films of this invention have outstanding light stability.
    Type: Application
    Filed: July 11, 2001
    Publication date: April 3, 2003
    Inventors: Ratka Damnjanovic, Haibin Huang