Patents by Inventor Mark Tellefsen

Mark Tellefsen 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).

  • CARBON-COATED BiOCl PIGMENTS
    Publication number: 20210179856
    Abstract: BiOCl pigments coated with an amorphous carbon. A process for the preparation of the pigments. And use of the pigments prepared in this way, inter alia in paints, coatings, printing inks, plastics and cosmetics.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 17, 2021
    Applicant: MERCK PATENT GMBH
    Inventors: Adeliene SCHMITT, Padma KAVIRATNA, Udo GUMSHEIMER, Mark TELLEFSEN, Qingmin CHENG
  • Pigment powders
    Patent number: 10676619
    Abstract: Disclosed are pigment powders containing only coated BiOCl flakes, which flakes area) BiOCl flakes having a coating containing yellow iron oxide Fe2O3*xH2O, optionally a colorant, optionally an adjuvant, and optionally SiO2, b) BiOCl flakes having a coating containing SiO2, optionally a colorant, and optionally an adjuvant, c) BiOCl flakes having a coating containing a colorant, SiO2, optionally yellow iron oxide Fe2O3*xH2O, and optionally an adjuvant, or d) BiOCl flakes having a coating containing Fe3O4 and optionally SiO2, to a process for the preparation of the pigment powders, and to the use thereof especially in cosmetic formulations.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: June 9, 2020
    Assignee: Merck Patent GmbH
    Inventors: Padma Kaviratna, Mark Tellefsen, Qingmin Cheng, Matthew Eddens, Qinyun Peng
  • Pigment mixtures
    Patent number: 10639247
    Abstract: Disclosed are pigment mixtures containing at least two components, where component A contains bismuth oxychloride (BiOCl) or boron nitride (BN) and component B contains synthetic flakes treated with at least one metal soap or mineral flakes treated with at least one metal soap and to the use thereof especially in cosmetic formulations.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: May 5, 2020
    Assignee: Merck Patent Gesellschaft
    Inventors: Mark Tellefsen, Qinyun Peng
  • PIGMENT POWDERS
    Publication number: 20180265708
    Abstract: Disclosed are pigment powders containing only coated BiOCl flakes, which flakes area) BiOCl flakes having a coating containing yellow iron oxide Fe2O3*xH2O, optionally a colorant, optionally an adjuvant, and optionally SiO2, b) BiOCl flakes having a coating containing SiO2, optionally a colorant, and optionally an adjuvant, c) BiOCl flakes having a coating containing a colorant, SiO2, optionally yellow iron oxide Fe2O3*xH2O, and optionally an adjuvant, or d) BiOCl flakes having a coating containing Fe3O4 and optionally SiO2, to a process for the preparation of the pigment powders, and to the use thereof especially in cosmetic formulations.
    Type: Application
    Filed: March 19, 2018
    Publication date: September 20, 2018
    Applicant: Merck Patent GmbH
    Inventors: Padma KAVIRATNA, Mark TELLEFSEN, Qingmin CHENG, Matthew EDDENS, Qinyun PENG
  • Pigment Mixtures
    Publication number: 20100291014
    Abstract: Disclosed are pigment mixtures containing at least two components, where component A contains bismuth oxychloride (BiOCl) or boron nitride (BN) and component B contains synthetic flakes treated with at least one metal soap or mineral flakes treated with at least one metal soap and to the use thereof especially in cosmetic formulations.
    Type: Application
    Filed: May 13, 2010
    Publication date: November 18, 2010
    Applicant: MERCK Patent Gesselschaft
    Inventors: Mark Tellefsen, Qinyun Peng
  • Surface treated pearlescent pigments for hair care products
    Publication number: 20050214236
    Abstract: A surface treated pearlescent pigment obtained by a process comprising hydrolyzing an amine of the formulae (R)2N—(CH2)n)—SIR? R=alkyl or aryl or A?(R)3—N—(CH2)n—SiR? R?=alkoxy, C1-C3 n=3-5 A?=an anion to obtain silanol groups and contacting a pearlescent pigment with resultant hydrolyzate.
    Type: Application
    Filed: December 22, 2004
    Publication date: September 29, 2005
    Inventors: Qinyun Peng, Philip Linz, Mark Tellefsen, Francois Marchio, Ratan Chaudhuri