Patents by Inventor Roland Fromme

Roland Fromme 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).

  • Hydrogel contact lenses of high biocompatibility
    Patent number: 6733123
    Abstract: A hydrogel contact lens is described, the HEMA basic material of which is copolymerized with SPE and amino acids. The water retention capability and the refractive index of the resulting contact lens are similar to those of the natural cornea.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: May 11, 2004
    Assignee: Wohlk Contact-Linsen GmbH
    Inventors: Kurt Polzhofer, Roland Fromme, Lothar Haase, K Herter, Birgit Kollosche
  • Hydrogel contact lenses of high biocompatibility
    Publication number: 20020180927
    Abstract: A hydrogel contact lens is described, the HEMA basic material of which is copolymerized with SPE and amino acids. The water retention capability and the refractive index of the resulting contact lens are similar to those of the natural cornea.
    Type: Application
    Filed: November 9, 2001
    Publication date: December 5, 2002
    Inventors: Kurt Polzhofer, Roland Fromme, Lothar Haase, K. Herter, Birgit Kollosche
  • Thermosetting reactive resin mixture, moulded article and coating made therefrom
    Patent number: 5292833
    Abstract: The invention relates to a thermosetting reactive resin mixture ofa) at least one organic compound, which possesses at least two epoxide groups,b) at least one carbamate compound of the formulae I, II, III or IV, such as can be quoted from the claim petitions,c) at least one basic catalyst,and with or withoutd) other processing aids and/or additives.The thermosetting reactive resin mixture according to the present invention are used for chemically resistant coatings, as cross-linked, no longer soluble and infusible moulded articles, for the production of cathodically precipitable electrophoretic enamels, and for the production of coating powders and automobile paints.
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: March 8, 1994
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Gerwald F. Grahe, Arthur Lachowicz, Roland Fromme