Patents by Inventor Ralf Herborn

Ralf Herborn 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).

  • Ceramic fibers in the system silicon-boron-nitrogen-carbon
    Patent number: 5968859
    Abstract: The invention relates to new amorphous, high-strength SiBN(C) fibers which are at the same time resistant to high-temperature creep, their production and use. The fibers have a strength at room temperature of >2.5 GPa, a modulus of elasticity of >250 GPa and a creep value m of from 0.4 to 1 (in accordance with standard BSR test, 1 hour, 1400.degree. C.).
    Type: Grant
    Filed: August 12, 1998
    Date of Patent: October 19, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Peter Baldus, Nils Perchenek, Axel Thierauf, Ralf Herborn, Dieter Sporn
  • Process of preparing silicon-boron-nitrogen-carbon fibers
    Patent number: 5885519
    Abstract: The invention relates to new amorphous, high-strength SiBN(C) fibres which are at the same time resistant to high-temperature creep, their production and use.The fibres have a strength at room temperature of >2.5 GPa, a modulus of elasticity of >250 GPa and a creep value m of from 0.4 to 1 (in accordance with standard BSR test, 1 hour, 1400.degree. C.).
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: March 23, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Peter Baldus, Nils Perchenek, Axel Thierauf, Ralf Herborn, Dieter Sporn
  • Ceramic fibers in the system silicon-boron-nitrogen-carbon
    Patent number: 5834388
    Abstract: The invention relates to new amorphous, high-strength SiBN(C) fibers which are at the same time resistant to high-temperature creep, their production and use. The fibers have a strength at room temperature of >2.5 GPa, a modulus of elasticity of >250 GPa and a creep value m of from 0.4 to 1 (in accordance with standard BSR test, 1 hour, 1400.degree. C.).
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: November 10, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Peter Baldus, Nils Perchenck, Axel Thierauf, Ralf Herborn, Dieter Sporn