Patents by Inventor Glenis R. Schenk

Glenis R. Schenk 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).

  • Polyhydroxypolyethers as low foam surfactants
    Patent number: 5425894
    Abstract: Polyhydroxypolyethers as low foam surfactants comprising a compound of the general formula ##STR1## wherein R.sup.1 is a linear or branched C.sub.2 - to C.sub.18 -alkylene radical;R.sup.2 is H, ##STR2## R.sup.3, R.sup.4 are linear or branched C.sub.2 to C.sub.18 alkyl radicals;Z is a number of from 1 to 3;with the proviso that at least one R.sup.2 is ##STR3## n is a number of from 2 to 8; m is a number of from 15 to 34; andl is a number of from 0 to 3.These compounds are useful in cleaning compositions and rinse aids which are low foaming and biodegradable.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: June 20, 1995
    Assignee: BASF Corporation
    Inventors: Michael C. Welch, Jay G. Otten, Glenis R. Schenk
  • Hydroxypolyethers as low-foam surfactants
    Patent number: 5294365
    Abstract: Hydroxypolyethers as low foam surfactants comprising a compound of the general formula ##STR1## wherein R.sup.1, R.sup.2 are the same or different and are a linear or branched C.sub.1 - to C.sub.18 -alkyl radical;n is a number of from 15 to 45; andm is a number of from 0 to 3.These compounds are useful in cleaning compositions and rinse aids, especially in automatic dishwashing machines.
    Type: Grant
    Filed: December 12, 1991
    Date of Patent: March 15, 1994
    Assignee: BASF Corporation
    Inventors: Michael C. Welch, Jay G. Otten, Glenis R. Schenk