Patents by Inventor Jung Kwang YOON

Jung Kwang YOON 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).

  • Publication number: 20240003078
    Abstract: A coffee recycled vegan leather sheet and the method for manufacturing the coffee recycled vegan leather sheet may include: a coffee grounds powder manufacturing step of drying coffee grounds to remove moisture, and pulverizing a dried coffee grounds to produce micronized coffee grounds powder; a first mixing step of mixing the coffee grounds powder obtained from the coffee grounds powder manufacturing step and a shaving scrap and latex, which are usually used as raw materials for recycled leather, into a mixing tank, respectively, and a second mixing step of adding a fatliquoring agent and a dispersing agent for imparting flexibility to the mixture into the mixing tank for mixing; a coffee regenerated leather molding step of drying the mixture that has undergone the secondary mixing step and passing it between pressing rolls to compression-mold it into regenerated coffee leather.
    Type: Application
    Filed: November 3, 2022
    Publication date: January 4, 2024
    Inventors: Ho Jin KIM, Won Ju KIM, Jung Kwang YOON, Jin Soo KANG