Patents by Inventor Ute Woelfel

Ute Woelfel 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).

  • Publication number: 20210340054
    Abstract: A glass has a low ratio of density ? and refractive index nd. The glass has a refractive index nd in a range of 1.80 to 2.00, an internal transmission of at least 80% (450 nm, 10 mm), a dispersion vd of 19.0 to 27.0, and a ratio ?/nd of <1.97.
    Type: Application
    Filed: May 4, 2021
    Publication date: November 4, 2021
    Applicant: Schott AG
    Inventors: Bianca Schreder, Ute Wölfel, Stefanie Hansen
  • Publication number: 20210300814
    Abstract: A sealing glass is provided that includes SiO2, Al2O3 having a content of less than 2% by weight, is free of PbO except for unavoidable impurities, a coefficient of linear thermal expansion (?20-300 of more than 10*10?6/K, a dielectric constant (?r) in the range from at least 7.10 to not more than 7.80 at a measurement frequency of 1 MHz and a temperature of 25° C., and a glass transition temperature (Tg) in a range from 400 to 550° C.
    Type: Application
    Filed: March 31, 2021
    Publication date: September 30, 2021
    Applicant: SCHOTT AG
    Inventors: Bianca Schreder, Ute Wölfel, Stefanie Hansen
  • Publication number: 20210191014
    Abstract: A glass includes cations of the following components in the indicated amounts (molar proportion in cat.-%): 30-80 cat.-% silicon; 0-20 cat.-% boron; 0-2 cat.-% aluminum; 5-35 cat.-% sodium; 2-25 cat.-% potassium; 0-0.5 cat.-% nickel; 0-0.5 cat.-% chromium; and 0.03-0.5 cat.-% cobalt. A sum of the molar proportions of cations of sodium and potassium is in a range of from 15 to 50 cat.-%, a sum of the molar proportions of cations of nickel and chromium is in a range of from 0.1 to 0.5 cat.-%, and a ratio of the sum of the molar proportions of cations of sodium and potassium to the sum of the molar proportions of cations of nickel and chromium is in a range of from 70:1 to 200:1.
    Type: Application
    Filed: December 18, 2020
    Publication date: June 24, 2021
    Applicant: Schott AG
    Inventors: Bianca Schreder, Ute Wölfel, Stephanie Hansen, Ralf Biertümpfel
  • Patent number: 10703669
    Abstract: The invention relates to a filter glass comprising Na2O and K2O and the following (in % by weight on an oxide basis): P2O5 58-68? Al2O3 5-10 CuO 8-15 V2O5 0.05-1??? SiO2 <2 F <1 Total R?O (R? = Mg, Ca, Sr, Ba) 0-11 Total R2O (R = Li, Na, K) ?3-17.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: July 7, 2020
    Assignee: SCHOTT AG
    Inventors: Bianca Schreder, Ute Woelfel, Stefanie Hansen
  • Patent number: 10343946
    Abstract: Glass sheets with high refractive indexes (nd), layer composite assemblies including the glass sheets, methods for manufacturing the glass sheets, and methods of using the glass sheets are all provided. The glass sheets can be processed in a glass sheet manufacturing process and nevertheless have the optical properties of a classical optical glass. The glass sheets of the are highly transparent, resistant to crystallization, chemically resistant and highly refractive. The glass sheets have a viscosity-temperature behavior that is adapted to the manufacturing procedure with glass sheet manufacturing processes.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: July 9, 2019
    Assignee: SCHOTT AG
    Inventors: Silke Wolff, Simone Ritter, Gunther Paulus, Ute Wölfel, Peter Brix
  • Patent number: 10308545
    Abstract: Glass sheets with high refractive indexes (nd), layer composite assemblies including the glass sheets, methods for manufacturing the glass sheets, and methods of using the glass sheets are all provided. The glass sheets can be processed in a glass sheet manufacturing process and nevertheless have the optical properties of a classical optical glass. The glass sheets of the are highly transparent, resistant to crystallization, chemically resistant and highly refractive. The glass sheets have a viscosity-temperature behavior that is adapted to the manufacturing procedure with glass sheet manufacturing processes.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: June 4, 2019
    Assignee: SCHOTT AG
    Inventors: Silke Wolff, Simone Ritter, Gunther Paulus, Ute Wölfel, Peter Brix
  • Publication number: 20180312424
    Abstract: The invention relates to a filter glass comprising Na2O and K2O and the following (in % by weight on an oxide basis): P2O5 58-68? Al2O3 5-10 CuO 8-15 V2O5 0.
    Type: Application
    Filed: April 27, 2018
    Publication date: November 1, 2018
    Applicant: SCHOTT AG
    Inventors: Bianca Schreder, Ute Woelfel, Stefanie Hansen
  • Patent number: 10106454
    Abstract: The present invention relates to optical glasses, in particular special short flint glasses (KZFS) and optical elements and components, which comprise these glasses, and use thereof and a method for producing such optical glasses. The optical glasses of the present invention are characterized by a pronounced short flint character and additionally by an excellent transmission and chemical resistance and workability. At that, the glasses of the invention can stand out due to lower costs of production caused by lower costs of raw materials and lower processing costs, due to their crystallization properties that can be handled also in smaller melting aggregates, and due to good environmental compatibility.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: October 23, 2018
    Assignee: SCHOTT AG
    Inventors: Simone Ritter, Bianca Schreder, Ute Woelfel, Stefanie Hansen
  • Patent number: 9701568
    Abstract: Thin glasses having high refractive index (nd), a layer composite assembly made from these thin glasses, a method for the production of the thin glasses, and the uses of the thin glasses are provided. The thin glasses are processed in an in line manufacturing process and have the optical properties of a classical optical glass. The thin glasses are highly transparent, crystallization-resistant, chemically resistant and highly refractive. The viscosity/temperature behavior of the thin glasses is adjusted to the manufacturing process via in line flat glass methods.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: July 11, 2017
    Assignee: SCHOTT AG
    Inventors: Karl Mennemann, Uwe Kolberg, Holger Wegener, Monika Gierke, Ute Woelfel, Joerg Fechner
  • Publication number: 20170137317
    Abstract: The present invention relates to optical glasses, in particular special short flint glasses (KZFS) and optical elements and components, which comprise these glasses, and use thereof and a method for producing such optical glasses. The optical glasses of the present invention are characterized by a pronounced short flint character and additionally by an excellent transmission and chemical resistance and workability. At that, the glasses of the invention can stand out due to lower costs of production caused by lower costs of raw materials and lower processing costs, due to their crystallization properties that can be handled also in smaller melting aggregates, and due to good environmental compatibility.
    Type: Application
    Filed: November 18, 2016
    Publication date: May 18, 2017
    Applicant: SCHOTT AG
    Inventors: Simone Ritter, Bianca Schreder, Ute Woelfel, Stefanie Hansen
  • Patent number: 9388069
    Abstract: Coloured glasses are provided that include a following composition in percent by weight, based on oxide of: P2O5 25-75? Al2O3 0.5-15?? MgO 0-10 CaO 0-10 BaO 0-35 SrO 0-16 Li2O 0-12 Na2O 0-12 K2O 0-12 CuO 1-20 F/F2 0-20 Sum RO (R = Mg, Ca, Sr, Ba) 0-40 Sum R2O (R = Li, Na, K) 0.5-20.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: July 12, 2016
    Assignee: SCHOTT AG
    Inventors: Bianca Schreder, Ute Woelfel, Ralf Biertuempfel, Stefanie Hansen
  • Publication number: 20160090324
    Abstract: A pore-free ceramic is provided that has a high modulus of elasticity and a low coefficient of thermal expansion. A process for producing a corresponding ceramic is also provided. The pore free ceramic is a dimensionally stable substrate material in applications subjected to temperature gradients including semiconductor manufacture.
    Type: Application
    Filed: September 25, 2015
    Publication date: March 31, 2016
    Applicant: SCHOTT AG
    Inventors: Bianca Schreder, Ute Wölfel, Stefanie Hansen
  • Patent number: 9057836
    Abstract: A glass wafer is provided that is made of a copper ions containing phosphate or fluorophosphate glass. The glass wafer has a diameter greater than 15 centimeters and a thickness of less than 0.4 millimeters. The glass wafer has two plane-parallel surfaces at least one of which is polished.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: June 16, 2015
    Assignee: SCHOTT AG
    Inventors: Bianca Schreder, Jochen Freund, Ute Woelfel, Claude Martin, Christophe Baur, Steffen Reichesl, Marc Clement
  • Patent number: 9018116
    Abstract: A highly refractive and highly transparent optical glass is provided. The use of such a glass, optical elements and processes for producing the glass or the optical elements are also provided.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: April 28, 2015
    Assignee: Schott AG
    Inventors: Bianca Schreder, Karl Mennemann, Ute Woelfel, Volker Dietrich
  • Publication number: 20140284577
    Abstract: Thin glasses having high refractive index (nd), a layer composite assembly made from these thin glasses, a method for the production of the thin glasses, and the uses of the thin glasses are provided. The thin glasses are processed in an in line manufacturing process and have the optical properties of a classical optical glass. The thin glasses are highly transparent, crystallization-resistant, chemically resistant and highly refractive. The viscosity/temperature behavior of the thin glasses is adjusted to the manufacturing process via in line flat glass methods.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 25, 2014
    Applicant: Schott AG
    Inventors: Karl Mennemann, Uwe Kolberg, Holger Wegener, Monika Gierke, Ute Woelfel, Joerg Fechner
  • Patent number: 8785335
    Abstract: Glass having an optimized degree of cross-linking of the phosphate component in the glass matrix is provided so that excellent weatherability is achieved. These glasses are fluorophosphate glasses that contain copper oxide as coloring component. The glasses can further contain coloring components and are obtainable in a method that includes a bubbling step.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: July 22, 2014
    Assignee: Schott AG
    Inventors: Simone Ritter, Bianca Schreder, Ute Woelfel, Stefanie Hansen
  • Publication number: 20130344343
    Abstract: Coloured glasses are provided that include a following composition in percent by weight, based on oxide of: P2O5 25-75? Al2O3 0.5-15?? MgO 0-10 CaO 0-10 BaO 0-35 SrO 0-16 Li2O 0-12 Na2O 0-12 K2O 0-12 CuO 1-20 F/F2 0-20 Sum RO (R = Mg, Ca, Sr, Ba) 0-40 Sum R2O (R = Li, Na, K) 0.5-20.
    Type: Application
    Filed: June 21, 2013
    Publication date: December 26, 2013
    Inventors: Bianca SCHREDER, Ute WOELFEL, Ralf BIERTUEMPFEL, Stefanie HANSEN
  • Publication number: 20130331255
    Abstract: A highly refractive and highly transparent optical glass is provided. The use of such a glass, optical elements and processes for producing the glass or the optical elements are also provided.
    Type: Application
    Filed: June 6, 2013
    Publication date: December 12, 2013
    Inventors: Bianca SCHREDER, Karl MENNEMANN, Ute WOELFEL, Volker DIETRICH
  • Publication number: 20130264672
    Abstract: A glass wafer is provided that is made of a copper ions containing phosphate or fluorophosphate glass. The glass wafer has a diameter greater than 15 centimeters and a thickness of less than 0.4 millimeters. The glass wafer has two plane-parallel surfaces at least one of which is polished.
    Type: Application
    Filed: March 18, 2013
    Publication date: October 10, 2013
    Applicant: Schott AG
    Inventors: Bianca SCHREDER, Jochen FREUND, Ute WOELFEL, Claude MARTIN, Christophe BAUR, Steffen REICHESL, Marc CLEMENT
  • Patent number: 8476177
    Abstract: The optical glass has a refractive index nd of 1.945?nd?1.97, an Abbe number ?d of 33??d?36, and a composition with the following components in amounts expressed in % of their cations, with respect to the total number of cations in the composition: B3+, 35-46; La3+, 25-35; Ta5+, 6-14; W6+, 6-13; Zr4+, 1-7; Gd3+, 0-5; Nb5+, 0-4; Y+3, 0-4; Ba2+, 0-2; ? alkaline earth metal cations, 0-2, ? La3++Ta3++W6++Zr4++Gd3++Nb5++Y3+?50; and at least one fining agent, 0-0.3. Also a ratio of B3+ to La+3 is 1.1 to 1.6 and a ratio of B3+ to ? Si+4+B3+ is ?0.5. The glass is free of lead, arsenic, Ti4+, Th4+, Zn2+, F?, and Hf+4.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: July 2, 2013
    Assignee: Schott AG
    Inventors: Simone Ritter, Ute Woelfel, Stefanie Hansen