Patents by Inventor Ursula KLETT

Ursula KLETT 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).

  • Diffuser material of synthetically produced quartz glass and method for the manufacture of a molded body consisting fully or in part thereof
    Patent number: 11390556
    Abstract: A diffuser material of synthetically produced, pore-containing quartz glass and a method for the manufacture of a molded body consisting fully or in part thereof. The diffuser material has a chemical purity of at least 99.9% SiO2, a cristobalite content of not more than 1%, and a density in the range of 2.0 to 2.18 g/cm3. Starting therefrom, to indicate a diffuser material which is improved with respect to diffuse reflectivity with Lambertian behavior over a wide wavelength range, high material homogeneity and UV radiation resistance, the quartz glass has a hydroxyl group content in the range of at least 200 wt. ppm and at least 80% of the pores have a maximum pore dimension of less than 20 ?m.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: July 19, 2022
    Assignee: HERAEUS QUARZGLAS GMBH & CO. KG
    Inventors: Gerrit Scheich, Frank Nuernberg, Andreas Goetzendorfer, Nadine Tscholitsch, Bernhard Franz, Ursula Klett, Matthew Donelon
  • DIFFUSER MATERIAL OF SYNTHETICALLY PRODUCED QUARTZ GLASS AND METHOD FOR THE MANUFACTURE OF A MOLDED BODY CONSISTING FULLY OR IN PART THEREOF
    Publication number: 20190031555
    Abstract: A diffuser material of synthetically produced, pore-containing quartz glass and a method for the manufacture of a molded body consisting fully or in part thereof. The diffuser material has a chemical purity of at least 99.9% SiO2, a cristobalite content of not more than 1%, and a density in the range of 2.0 to 2.18 g/cm3. Starting therefrom, to indicate a diffuser material which is improved with respect to diffuse reflectivity with Lambertian behavior over a wide wavelength range, high material homogeneity and UV radiation resistance, the quartz glass has a hydroxyl group content in the range of at least 200 wt. ppm and at least 80% of the pores have a maximum pore dimension of less than 20 ?m.
    Type: Application
    Filed: February 13, 2017
    Publication date: January 31, 2019
    Inventors: Gerrit SCHEICH, Frank NUERNBERG, Andreas GOETZENDORFER, Nadine TSCHOLITSCH, Bernhard FRANZ, Ursula KLETT, Matthew DONELON