Patents by Inventor Wolfgang Krumbe

Wolfgang Krumbe 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).

  • Process for the production of water and solvent-free polymers
    Patent number: 8975361
    Abstract: The present invention relates to water and solvent-free polymers, in particular water and solvent-free synthetic rubber products like styrene butadiene rubber products and butadiene rubber products as well as a process for the production thereof. The invention further relates to a device suitable to accomplish said process.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: March 10, 2015
    Assignee: LANXESS Deutschland GmbH
    Inventors: Wolfgang Krumbe, Rolf Feller, Paul Wagner, Hanns-Ingolf Paul, Martin Siebuerger, Heike Kloppenburg, Alicia Le-Sattler, John Lovegrove
  • PROCESS FOR THE PRODUCTION OF WATER AND SOLVENT-FREE POLYMERS
    Publication number: 20130211030
    Abstract: The present invention relates to water and solvent-free polymers, in particular water and solvent-free synthetic rubber products like styrene butadiene rubber products and butadiene rubber products as well as a process for the production thereof. The invention further relates to a device suitable to accomplish said process.
    Type: Application
    Filed: March 23, 2011
    Publication date: August 15, 2013
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Paul Wagner, Hanns-Ingolf Paul, Rolf Feller, Wolfgang Krumbe, Alicia Le-Sattler, Heike Kloppenburg, Martin Siebuerger, John Lovegrove
  • Melting pot with silicon protective layers, method for applying said layer and the use thereof
    Patent number: 6165425
    Abstract: The invention relates to melting pots provided with silicon protective layers, a process for applying the silicon protective layer and the use thereof.
    Type: Grant
    Filed: August 4, 1999
    Date of Patent: December 26, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Horst Lange, Wolfgang Krumbe, Heinz Gatzweiler
  • Directionally solidified, multicrystalline silicon, a process for the production thereof and its use, and solar cells containing this silicon and a process for the production thereof
    Patent number: 6013872
    Abstract: The present invention relates to directionally solidified, arsenic- and/or antimony-containing, multicrystalline silicon, a process for the production thereof and its use, and to solar cells containing this silicon and a process for the production thereof.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: January 11, 2000
    Assignee: Bayer AG
    Inventors: Peter Woditsch, Christian Hassler, Wolfgang Krumbe, Horst Lange, Klaus Weber
  • SI C powder, a process for its production and its use
    Patent number: 5039632
    Abstract: The present invention relates to an SiC powder suitable for the production of SiC sintered ceramics with compounds applied to its surface, these compounds being boron nitride and carbon; processes for production of the SiC powders; and the use of these powders to produce SiC sintered mouldings.
    Type: Grant
    Filed: October 4, 1989
    Date of Patent: August 13, 1991
    Assignee: Bayer AG
    Inventors: Ralf Riedel, Gerd Passing, Gunter Petzow, Wolfgang Krumbe, Gerhard Franz
  • Process for the preparation of finely divided carbides and nitrides from ceramic precursor-compounds
    Patent number: 4948762
    Abstract: Carbides, nitrides or carbonitrides of elements from the main groups III and IV and sub-groups III, IV, V and VI of the periodic system of elements are prepared by(i) reacting compounds of the formula MX.sub.m or R.sub.n MX.sub.m-n with a reactive hydrocarbon-containing compound or a mixture of compounds which is polymerizable and which contains a reactive compound with one C--OH-group in whichM is an element of the main group III or IV or sub-group of III, IV, V or VI of the periodic system of elements,X is a halogen,R is hydrogen or alkyl or aryl,m is an integer corresponding to the valency stage of M,n is an integer from 1 to one less than the velency stage of M, and(ii) thermally decomposing the resulting product from (i) to the corresponding carbide or to the corresponding nitrides or carbonitrides with further nitridation.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: August 14, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Krumbe, Benno Laubach, Gerhard Franz