Patents by Inventor Marilyn W. Blaschke

Marilyn W. Blaschke 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).

  • Use of phenylenediamines and hindered phenols to inhibit polymer formation during the manufacture of acrylonitrile
    Patent number: 6627766
    Abstract: The present invention relates to the use of phenylenediamines, preferably para-phenylenediamines, in combination with hindered phenols, to reduce polymer formation during the manufacture of acrylonitrile.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: September 30, 2003
    Assignee: Baker Hughes Incorporated
    Inventors: Dwight K. Reid, Marilyn W. Blaschke
  • Use of phenylenediamines and hindered phenols to inhibit polymer formation during the manufacture of acrylonitrile
    Patent number: 6608226
    Abstract: The present invention relates to the use of phenylenediamines, preferably para-phenylenediamines, in combination with hindered phenols, to reduce polymer formation during the manufacture of acrylonitrile.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 19, 2003
    Assignee: Baker Hughes Incorporated
    Inventors: Dwight K. Reid, Marilyn W. Blaschke
  • Use of phenylenediamines and hindered phenols to inhibit polymer formation during the manufacture of acrylonitrile
    Publication number: 20030109739
    Abstract: The present invention relates to the use of phenylenediamines, preferably para-phenylenediamines, in combination with hindered phenols, to reduce polymer formation during the manufacture of acrylonitrile.
    Type: Application
    Filed: December 30, 2002
    Publication date: June 12, 2003
    Inventors: Dwight K. Reid, Marilyn W. Blaschke
  • Method for chemical addition utilizing adaptive optimization
    Patent number: 6535795
    Abstract: The present invention provides a method for chemical addition utilizing adaptive process control optimizations having a combination of expert system(s), neural network(s) and genetic algorithm(s).
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: March 18, 2003
    Assignee: Baker Hughes Incorporated
    Inventors: Myron E. Schroeder, Marilyn W. Blaschke, Michael J. Zetlmeisl, David M. Fischer, Kenneth J. Tacchi
  • Aqueous nitrogenous fertilizer solutions having reduced corrosivity
    Patent number: 4781748
    Abstract: The corrosive effects of liquid nitrogen-based fertilizer compositions on metal surfaces is reduced by adding to the fertilizer compositions small amounts of amine oxides.
    Type: Grant
    Filed: October 17, 1986
    Date of Patent: November 1, 1988
    Assignee: Pony Industries, Inc.
    Inventors: Richard F. Miller, Marilyn W. Blaschke
  • Alkylation aide for sulfuric acid catalyzed alkylation units
    Patent number: 4675305
    Abstract: Hydrocarbon alkylation processes which are catalyzed by acids are promoted by the addition of an alkylation promoter which is a combination of a new carboxylic acid having the structural formula ##STR1## wherein R, R.sup.1 and R.sup.2 are alkyl groups and at least one aromatic hydrocarbon sulfonic acid selected from compounds having the structure ##STR2## wherein R.sup.3 is H or an alkyl group and R.sup.4 is an alkyl group.
    Type: Grant
    Filed: September 15, 1986
    Date of Patent: June 23, 1987
    Assignee: Atlantic Richfield Company
    Inventors: Richard F. Miller, Marilyn W. Blaschke
  • Inhibiting polymerization of vinyl aromatic monomers
    Patent number: 4654451
    Abstract: Vinyl aromatic compounds are stabilized against undesired polymerization by adding to the vinyl aromatic compounds small amounts of mixtures of alkyl-substituted p-nitrosophenols and p-nitrosophenol.
    Type: Grant
    Filed: December 27, 1985
    Date of Patent: March 31, 1987
    Assignee: Atlantic Richfield Company
    Inventors: Richard F. Miller, Marilyn W. Blaschke
  • Alkylation aide for sulfuric acid catalyzed alkylation units
    Patent number: 4650918
    Abstract: Hydrocarbon alkylation processes which are catalyzed by acids are promoted by the addition of an alkylation promoter which is a combination of a new carboxylic acid having the structural formula ##STR1## wherein R, R.sup.1 and R.sup.2 are alkyl groups and at least one aromatic hydrocarbon sulfonic acid selected from compounds having the structure ##STR2## wherein R.sup.3 is H or an alkyl group and R.sup.4 is an alkyl group.
    Type: Grant
    Filed: November 25, 1985
    Date of Patent: March 17, 1987
    Assignee: Atlantic Richfield Company
    Inventors: Richard F. Miller, Marilyn W. Blaschke
  • Preparation of higher silicon carboxylates in improved yields using an inert gas
    Patent number: 4611073
    Abstract: Silicon tetracarboxylates of higher acids are prepared by contacting silicon tetracarboxylates of lower fatty acids with higher fatty acids at a temperature sufficiently high to vaporize the lower fatty acid by-product. The reaction may be carried out in the presence of an inert gas, if desired.
    Type: Grant
    Filed: December 27, 1985
    Date of Patent: September 9, 1986
    Assignee: Atlantic Richfield Company
    Inventors: Richard F. Miller, Marilyn W. Blaschke
  • Novel water-soluble antimony compounds and their preparation
    Patent number: 4609747
    Abstract: Novel organic water-soluble antimony compounds are prepared by reacting an alkoxyalkylamine with a hydroxycarboxylic acid to form an intermediate product and then reacting the intermediate product with an antimony oxide. These compounds are useful for use as catalyst metal poison passivators.
    Type: Grant
    Filed: November 19, 1984
    Date of Patent: September 2, 1986
    Assignee: Atlantic Richfield
    Inventors: Marilyn W. Blaschke, Richard F. Miller, John Link
  • Novel water-soluble antimony compounds and their preparation
    Patent number: 4595772
    Abstract: Novel organic water-soluble antimony compounds are prepared by reacting an alkanolamine with a hydroxycarboxylic acid to form an intermediate product and then reacting the intermediate product with an antimony oxide. These compounds are useful for use as catalyst metal poison passivators.
    Type: Grant
    Filed: November 19, 1984
    Date of Patent: June 17, 1986
    Assignee: Atlantic Richfield Company
    Inventors: Marilyn W. Blaschke, Richard F. Miller, John Link
  • Water-soluble antimony compounds and their preparation
    Patent number: 4595771
    Abstract: Novel organic water-soluble antimony compounds are prepared by reacting ammonia or an alkylamine with a hydroxycarboxylic acid to form an intermediate product and then reacting the intermediate product with an antimony oxide. These compounds are useful for use as catalyst metal poison passivators.
    Type: Grant
    Filed: November 16, 1984
    Date of Patent: June 17, 1986
    Assignee: Atlantic Richfield Company
    Inventors: Marilyn W. Blaschke, Richard F. Miller, John Link