Patents by Inventor Glenis Roberts

Glenis Roberts 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).

  • Patent number: 5998346
    Abstract: An improved powdered non-phosphate machine dishwashing composition comprising a blend of nonionic surfactants, builders, chlorine or non-chlorine bleach, bleach activators, enzymes and copolymers of alkylene oxides adducts of allyl alcohol and acrylic acid useful in reducing spotting and filming of dishware.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: December 7, 1999
    Assignee: BASF Corporation
    Inventors: Michael C. Welch, Kenneth L. Zack, Glenis Roberts
  • Patent number: 5880082
    Abstract: The present invention relates to an aqueous based, solvent free degreaser composition, comprising (a) alcohol alkoxylate with a fatty alcohol moiety, (b) alkoxylated fatty alcohol, and (c) a fatty alcohol having an oxyethylate moiety.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: March 9, 1999
    Inventors: Michael C. Welch, Charles O. Kerobo, Suzanne M. Gessner, Sonia J. Patterson, Glenis Roberts
  • Patent number: 5880087
    Abstract: An improved rinse aid composition comprising a blend of nonionic low foam surfactants, hydrotropes, polycarboxylate polymers and alkyliminodialkanoates.
    Type: Grant
    Filed: December 28, 1996
    Date of Patent: March 9, 1999
    Inventors: Kenneth L. Zack, Michael C. Welch, Glenis Roberts
  • Patent number: 5753608
    Abstract: The present invention relates to rinse aid compositions comprising non-ionic surfactants, acrylic acid polymers and phosphate esters.
    Type: Grant
    Filed: December 28, 1996
    Date of Patent: May 19, 1998
    Assignee: BASF Corporation
    Inventors: Kenneth L. Zack, Michael C. Welch, Glenis Roberts
  • Patent number: 5739099
    Abstract: An improved rinse aid composition comprising a blend of nonionic, cationic, anionic, zwitterionic and amphoteric surfactants, hydrotropes, and copolymers of alkylene oxide adducts of allyl alcohol and acrylic acid useful in reducing spotting and filming of dishware.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: April 14, 1998
    Assignee: BASF Corporation
    Inventors: Michael C. Welch, Kenneth L. Zack, Glenis Roberts
  • Patent number: 5518648
    Abstract: A machine dishwashing composition is provided wherein two specifically defined nonionic surfactants are utilized which in combination have been shown through empirical research to surprisingly yield improved results. One of the nonionic surfactants is an alcohol alkoxylate (as defined) and the other nonionic surfactant is a block copolymer of ethylene oxide and propylene oxide (as defined). The use temperature for efficient cleaning while using the composition extends over a broad range up to at least 140.degree. F. in the absence of deleterious foaming even in the presence of protein soil (e.g., egg and/or milk soil).
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: May 21, 1996
    Assignee: BASF Corporation
    Inventors: Michael C. Welch, Kenneth L. Zack, Suzanne M. Gessner, Glenis Roberts
  • Patent number: 5516452
    Abstract: An aqueous rinse-aid composition for kitchen utensils is provided wherein an anionic hydrotrope and a blend of two specifically defined nonionic surfactants are utilized which has been shown through empirical research to surprisingly yield improved results. One of the nonionic surfactants is an alcohol alkoxylate (as defined) and the other nonionic surfactant is a block copolymer of ethylene oxide and propylene oxide (as defined). The composition is suitable for use at a temperature of up to at least 180.degree. F. in the absence of excessive foaming, spotting and film formation. The components of the composition exhibit good compatibility during storage even if elevated temperatures are experienced thereby maintaining reliable performance upon usage. Rapid high velocity rinsing at a high temperature is made possible in the absence of deleterious foam generation to yield dishes and tableware that can be readily dried without the need for the time consuming hand removal of deleterious spots and/or film.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: May 14, 1996
    Assignee: BASF Corporation
    Inventors: Michael C. Welch, Kenneth L. Zack, Suzanne M. Gessner, Glenis Roberts