Patents by Inventor Winfried Mueller

Winfried Mueller 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).

  • Separation of organosilicon compounds from wastewater
    Patent number: 8877059
    Abstract: The invention relates to a method for separating organosilicon compounds from organosilicon wastewater. In the first step, the wastewater is heated to at least 10° C. In the second step, the wastewater is stored for at least 30 minutes at at least 10° C. In the third step, the wastewater is conducted through a phase separation element, in which droplets that are formed and contain organosilicon compounds are separated.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: November 4, 2014
    Assignee: Wacker Chemie AG
    Inventors: Ulrike Buettner, Susanne Kutz, Winfried Mueller
  • SEPARATION OF ORGANOSILICON COMPOUNDS FROM WASTEWATER
    Publication number: 20120046487
    Abstract: The invention relates to a method for separating organosilicon compounds from organosilicon wastewater. In the first step, the wastewater is heated to at least 10° C. In the second step, the wastewater is stored for at least 30 minutes at at least 10° C. In the third step, the wastewater is conducted through a phase separation element, in which droplets that are formed and contain organosilicon compounds are separated.
    Type: Application
    Filed: March 3, 2010
    Publication date: February 23, 2012
    Applicant: WACKER CHEMIE AG
    Inventors: Ulrike Buettner, Susanne Kutz, Winfried Mueller
  • Compositions in the form of solid solutions
    Patent number: 5684040
    Abstract: Compositions in the form of solid solutions containinga) 1-90% by weight of a coumarin derivative A from the group of alkoxycoumarins with a heterocyclic substituent or of hydroxycoumarins esterified with a sulfonic acid as active substance andb) 10-99% by weight of at least one water-soluble polymer B as carrier substance.
    Type: Grant
    Filed: November 7, 1995
    Date of Patent: November 4, 1997
    Assignee: BASF Aktiengesellschaft
    Inventors: Sven Grabowski, Winfried Mueller, Joerg Rosenberg, Rudolf Binder, Axel Sanner
  • Solid depot drug form
    Patent number: 5552159
    Abstract: A solid depot drug form produced by melt extrusion at from 50.degree. to 200.degree. C. and continuous shaping of a mixture of from 0.1 to 70% by weight, based on the finished depot form, of a pharmaceutical active ingredient with a polymer melt of the following composition:a) at least 6% by weight, based on the complete depot form, of at least one water-insoluble poly(meth) acrylate with a glass transition temperature Tg in the range from -60.degree. to 180.degree. C.,b) a water-soluble hydroxyalkylcellulose or hydroxy-alkylmethylcellulose with 2 or 3 carbons in the hydroxyalkyl, or an N-vinylpyrrolidone polymer with from 0 to 50% by weight of vinyl acetate or a mixture of the two in the ratio a):b) =5:95 to 95:5, andc) 0-30% by weight, based on the finished depot form, of one or more conventional pharmaceutical auxiliaries.
    Type: Grant
    Filed: September 23, 1993
    Date of Patent: September 3, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Winfried Mueller, Reinhard Spengler, Sven Grabowski, Axel Sanner