Patents by Inventor Eric KIENTZ

Eric KIENTZ 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).

  • Process for retanning leather
    Patent number: 10087497
    Abstract: The present invention is directed to a process for retanning leather comprising the steps of: a) providing tanned or pre-tanned leather b) treating the tanned leather of step a) with a composition comprising hollow microspheres, preferably as an aqueous composition, the hollow microspheres have a true density of from 0.01 to 0.10 g/cm3 (25° C.) and/or a bulk density of the dry powder of 0.005 to 0.06 g/cm3 (25° C.), c) drying, whereby the temperature of the leather during drying does not exceed 75° C. as well as to leather obtained by said process.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: October 2, 2018
    Assignee: TFL LEDERTECHNIK GMBH
    Inventors: Jens Fennen, Eric Kientz, Florian Döppert, Nina Schulte
  • PROCESS FOR RETANNING LEATHER
    Publication number: 20160160301
    Abstract: The present invention is directed to a process for retanning leather comprising the steps of: a) providing tanned or pre-tanned leather b) treating the tanned leather of step a) with a composition comprising hollow microspheres, preferably as an aqueous composition, the hollow microspheres have a true density of from 0.01 to 0.10 g/cm3 (25° C.) and/or a bulk density of the dry powder of 0.005 to 0.06 g/cm3 (25° C.), c) drying, whereby the temperature of the leather during drying does not exceed 75° C. as well as to leather obtained by said process.
    Type: Application
    Filed: July 25, 2014
    Publication date: June 9, 2016
    Applicant: TFL LEDERTECHNIK GMBH
    Inventors: Jens FENNEN, Eric KIENTZ, Florian DÖPPERT, Nina SCHULTE