Patents by Inventor Jürgen Stebani

Jürgen Stebani 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).

  • Copolymer for use in a digital manufacturing process
    Patent number: 11767387
    Abstract: Copolymers for use in a digital manufacturing process, in particular support materials for use in a digital manufacturing process comprising such copolymers. More particularly, the invention is directed to a copolymer, a support material based on the the copolymer, the use of the copolymer in a digital manufacturing process, a method for preparing the copolymer and a method for building a 3D-model by using a support material comprising the copolymer.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: September 26, 2023
    Assignee: ISQUARED AG
    Inventors: Christoph Jung, Gerhard Maier, Jürgen Stebani, Jan-Michael Stepper
  • COPOLYMER FOR USE IN A DIGITAL MANUFACTURING PROCESS
    Publication number: 20210253763
    Abstract: Copolymers for use in a digital manufacturing process, in particular support materials for use in a digital manufacturing process comprising such copolymers. More particularly, the invention is directed to a copolymer, a support material based on the the copolymer, the use of the copolymer in a digital manufacturing process, a method for preparing the copolymer and a method for building a 3D-model by using a support material comprising the copolymer.
    Type: Application
    Filed: February 12, 2021
    Publication date: August 19, 2021
    Inventors: Christoph JUNG, Gerhard MAIER, Jürgen STEBANI, Jan-Michael STEPPER
  • Method for producing and purifying 3-(4-Hydroxyphenyl)-1, 1,3-trimethylindan-5-ol
    Patent number: 6268538
    Abstract: A process is disclosed for the preparation and purification of 3-(4-hydroxyphenyl)-1,1,3-trimethylindan-5-ol. Accordingly, isopropenylphenol, its dimers or oligomers undergo isomerization in the presence of an acid catalyst, crude 3-(4-hydroxyphenyl)-1,1,3-trimethylindan-5-ol is isolated from the reaction mixture and purified by distillation.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: July 31, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Stefan Westernacher, Claudia Laukötter, Jürgen Stebani, Gerhard Fennhoff
  • Copolycarbonates with an indane bisphenol base
    Patent number: 6218502
    Abstract: A copolycarbonate having glass transition temperature not higher than 160° C. and a rheooptic constant not higher than 4 is disclosed. Containing structural units conforming to wherein the radicals R1 each independently denotes a C1-12-alkyl radical or a halogen atom and n is 0 to 3, the copolycarbonate is suitable for the preparation of lenses and optical mass storage means.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: April 17, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Stefan Westernacher, Annett König, Jürgen Stebani, Friedrich-Karl Bruder, Wilfried Haese