Patents by Inventor Dennis L. Rivenburgh

Dennis L. Rivenburgh 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).

  • Soldering flux
    Patent number: 4441938
    Abstract: A soldering flux comprising of rosin, certain acetic acid derivatives, ionic fluorocarbon surfactant, and organic diluent.
    Type: Grant
    Filed: March 29, 1983
    Date of Patent: April 10, 1984
    Assignee: International Business Machines Corporation
    Inventors: Richard M. Poliak, Dennis L. Rivenburgh, Carlos J. Sambucetti
  • Reducing chloride concentration
    Patent number: 4358627
    Abstract: A process for reducing the chloride concentration in a system which contains an ethylenically unsaturated chlorinated hydrocarbon, water and HCl which includes providing certain nitrogen-containing compounds in the system and contacting the system with a molecular sieve. The process surprisingly is capable of regenerating the nitrogen-containing compounds employed.
    Type: Grant
    Filed: April 13, 1981
    Date of Patent: November 9, 1982
    Assignee: International Business Machines Corporation
    Inventors: Joseph G. Ameen, Charles A. Joseph, Dennis L. Rivenburgh, David W. Sissenstein
  • Reducing carbonate concentration in aqueous solution
    Patent number: 4334949
    Abstract: A method for reducing the concentration of carbonate in an aqueous solution which includes contacting the aqueous solution with a strongly basic ion-exchange resin.
    Type: Grant
    Filed: November 25, 1980
    Date of Patent: June 15, 1982
    Assignee: International Business Machines Corporation
    Inventors: Joseph G. Ameen, Nelson P. Franchak, John Rasile, Dennis L. Rivenburgh
  • Cleaning composition and use thereof
    Patent number: 4276186
    Abstract: A cleaning composition which includes N-methyl-2-pyrrolidone and an alkanolamine, and use thereof for cleaning substrates.
    Type: Grant
    Filed: June 26, 1979
    Date of Patent: June 30, 1981
    Assignee: International Business Machines Corporation
    Inventors: Peter Bakos, Gerald A. Bendz, Russell E. Darrow, Dennis L. Rivenburgh
  • Screenable and strippable solder mask and use thereof
    Patent number: 4246147
    Abstract: A screenable and strippable solder mask composition which contains a polyepoxide or polyimide/amide; a detackifier and a high-temperature resistant filler; and use thereof for protecting predetermined areas on a substrate from the solder deposition.
    Type: Grant
    Filed: June 4, 1979
    Date of Patent: January 20, 1981
    Assignee: International Business Machines Corporation
    Inventors: Peter Bakos, Russell E. Darrow, Dennis L. Rivenburgh, William F. Williams