Patents by Inventor Khalid Rasheed

Khalid Rasheed 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).

  • Aromatic and aliphatic sulfonates and properties and applications thereof
    Patent number: 6133474
    Abstract: The present invention is directed to novel alkyl glyceryl ether disulfonate compositions (ADEDS), alkylphenol polyethoxy sulfate-sulfonates, and ethoxylated alkylphenol sulfonates, and novel methods of preparation and uses thereof.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: October 17, 2000
    Assignee: Witco Corporation
    Inventors: Khalid Rasheed, John Gray, Jeffrey J. Fulton
  • Aromatic and aliphatic sulfonates and properties and applications thereof
    Patent number: 5919975
    Abstract: The present invention is directed to novel alkyl glyceryl ether disulfonate compositions (ADEDS), alkylphenol polyethoxy sulfate-sulfonates, and ethoxylated alkylphenol sulfonates, and novel methods of preparation and uses thereof.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: July 6, 1999
    Assignee: Witco Corporation
    Inventor: Khalid Rasheed
  • Alkoxylate surfactant compositions and the use thereof in paper deinking
    Patent number: 5712233
    Abstract: Enhanced removal of ink in the froth flotation deinking of waste paper is provided by carrying out the flotation with one or more dialkoxylates of certain cyclohexenyl diacids, one or more alkoxylates of C.sub.2-12 polyhydric alcohols, or a mixture thereof. Improved performance is also provided by adding one or more alkyl diglyceryl disulfonates, C.sub.8 to C.sub.18 alpha-olefin sulfonates and/or alkyl ether sulfates.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: January 27, 1998
    Assignee: Witco Corporation
    Inventor: Khalid Rasheed
  • Alkoxylated alkyl substituted phenol sulfonates compounds and compositions, the preparation thereof and their use in various applications
    Patent number: 5049311
    Abstract: The present invention relates to novel compounds of the formula ##STR1## wherein R.sub.1 is an alkyl group, M.sup.+ is a cation, R.sub.2 is an alkylene oxide and n is an integer from 1 to 4. Surfactant compositions containing these novel compounds, the process of preparing these novel compounds as well as the methods of using these surfactant compounds in enhanced oil recovery, as emulsifiers, in emulsion polymerization, as hydrotropes, in foamed drilling fluids, as dye carriers, as textile detergents, as foaming agents for concrete formation and as fiber lubricants are also disclosed.
    Type: Grant
    Filed: December 12, 1990
    Date of Patent: September 17, 1991
    Assignee: Witco Corporation
    Inventors: Khalid Rasheed, Rodney Cravey, Paul D. Berger, Edwin O'Brien
  • Biocidally-active 1,3-benzodithiole-2-thione compounds
    Patent number: 4240821
    Abstract: 1,3-Benzodithiole-2-thione compounds are disclosed including the novel method of preparing said compounds and their biocidal activity.
    Type: Grant
    Filed: November 8, 1979
    Date of Patent: December 23, 1980
    Assignee: Ciba-Geigy Corporation
    Inventors: Khalid Rasheed, James D. Warkentin
  • Biocidally-active 1,3-benzodithiole-2-thione compounds
    Patent number: 4187096
    Abstract: 1,3-Benzodithiole-2-thione compounds are disclosed including the novel method of preparing said compounds and their biocidal activity.
    Type: Grant
    Filed: August 4, 1977
    Date of Patent: February 5, 1980
    Assignee: The Ansul Company
    Inventors: Khalid Rasheed, James D. Warkentin
  • Soil fungicidal (nitrogen heterocyclic)-substituted-1,3-benzodithiole-2-ones
    Patent number: 4177270
    Abstract: 1,3-Benzodithiole-2-one and 1,3-benzodithiole-2-thione compounds are disclosed including the novel method of preparing said compounds and their biocidal activity.
    Type: Grant
    Filed: December 14, 1977
    Date of Patent: December 4, 1979
    Assignee: The Ansul Company
    Inventors: Khalid Rasheed, James D. Warkentin
  • Biocidally-active, 1,3-benzodithiole-2-one and 1,3-benzodithiole-2-thione compounds
    Patent number: 4175186
    Abstract: 1,3-Benzodithiole-2-one and 1,3-benzodithiole-2-thione compounds are disclosed including the novel method of preparing said compounds and their biocidal activity.
    Type: Grant
    Filed: November 4, 1977
    Date of Patent: November 20, 1979
    Assignee: The Ansul Company
    Inventors: Khalid Rasheed, James D. Warkentin
  • Biocidally-active 1,2,3-benzotrisulfides
    Patent number: 4139362
    Abstract: 1,2,3-Benzotrisulfide compounds are disclosed including the novel method of preparing said compounds and their biocidal activity.
    Type: Grant
    Filed: August 4, 1977
    Date of Patent: February 13, 1979
    Assignee: The Ansul Company
    Inventors: Khalid Rasheed, James D. Warkentin
  • Biocidally-active 1,3-benzodithiole-2-one compounds
    Patent number: 4084954
    Abstract: 1,3-Benzodithiole-2-one and 1,3-benzodithiole-2-thione compounds are disclosed including the novel method of preparing said compounds and their biocidal activity.
    Type: Grant
    Filed: September 30, 1975
    Date of Patent: April 18, 1978
    Assignee: The Ansul Company
    Inventors: Khalid Rasheed, James D. Warkentin