Patents by Inventor Christine Lienau

Christine Lienau 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).

  • Kit of parts for producing a paste type glass ionomer cement, process of production and use thereof
    Patent number: 10799429
    Abstract: The invention relates to a kit of parts for preparing a glass ionomer composition for dental use, the kit comprising a Paste A and a Paste B, Paste A comprising water, acid-reactive inorganic filler A, phyllo silicate(s), Paste B comprising water, poly-acid, non acid-reactive filler B, optionally chelating agent. The invention also relates to a hardenable composition obtainable by combining the pastes of the kit or parts and to the use of such a composition as or for preparing a dental cement, dental filling material, dental core build up material or dental root channel filling material.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: October 13, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kai U. Claussen, Johannes M. Leykauff, Christine Lienau, Reinhold Hecht, Peter Braun, Markus Mikulla
  • KIT OF PARTS FOR PRODUCING A PASTE TYPE GLASS IONOMER CEMENT, PROCESS OF PRODUCTION AND USE THEREOF
    Publication number: 20190046419
    Abstract: The invention relates to a kit of parts for preparing a glass ionomer composition for dental use, the kit comprising a Paste A and a Paste B, Paste A comprising water, acid-reactive inorganic filler A, phyllo silicate(s), Paste B comprising water, poly-acid, non acid-reactive filler B, optionally chelating agent. The invention also relates to a hardenable composition obtainable by combining the pastes of the kit or parts and to the use of such a composition as or for preparing a dental cement, dental filling mater ial, dental core build up material or dental root channel filling material.
    Type: Application
    Filed: February 16, 2017
    Publication date: February 14, 2019
    Inventors: Kai U. Claussen, Johannes M. Leykauff, Christine Lienau, Reinhold Hecht, Peter Braun, Markus Mikulla