Patents by Inventor Donald U. Bessler

Donald U. Bessler 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).

  • Demulsification of surfactant-petroleum-water flood emulsions
    Patent number: 4446054
    Abstract: This invention relates to the demulsification of surfactant petroleum water flood emulsions which comprises treating such emulsions with a demulsifier in conjunction with an amine, preferably a polyalkylenepolyamine.
    Type: Grant
    Filed: September 21, 1977
    Date of Patent: May 1, 1984
    Assignee: Petrolite Corporation
    Inventor: Donald U. Bessler
  • Demulsification of surfactant-petroleum-water flood emulsions
    Patent number: 4089803
    Abstract: This invention relates to the demulsification of surfactant petroleum water flood emulsions which comprises treating such emulsions with a demulsifier in conjunction with an amine, preferably a polyalkylenepolyamine.
    Type: Grant
    Filed: August 12, 1976
    Date of Patent: May 16, 1978
    Assignee: Petrolite Corporation
    Inventor: Donald U. Bessler
  • Distillate fuel containing dehazing compositions
    Patent number: 4046521
    Abstract: This invention relates to compositions which are the reaction products of phenol-formaldehyde resins, .alpha.-olefin epoxides derived from .alpha.-olefins of 4 or more carbons and alkylene oxides such as ethylene and propylene oxides; and to the use of these compositions as dehazers for petroleum distillates.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: September 6, 1977
    Assignee: Petrolite Corporation
    Inventors: Donald U. Bessler, Kenneth J. Tacchi