Patents by Inventor William J. Tuszynski

William J. Tuszynski 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).

  • Process for removing sulfur from organic polysulfides
    Patent number: 5242672
    Abstract: A process for removing sulfur from an organic polysulfide by reaction with an aqueous stripping solution of at least one sulfide salt and/or hydrosulfide salt in a multi-stage, continuous, countercurrent flow, reaction system wherein the sulfur is stripped from the polysulfide into the aqueous stripping solution phase which is separated from the polysulfide organic phase.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: September 7, 1993
    Assignee: Elf Atochem North America, Inc.
    Inventors: Jeffrey H. Yen, Glenn T. Carroll, Vijay R. Srinivas, William J. Tuszynski, John A. Wismer
  • Method for dewaxing oil and gas pipelines or wells
    Patent number: 5053149
    Abstract: A process for dissolving wax, paraffin and/or sulfur deposits in an oil or gas pipeline or well comprises providing at the site of the deposit an acid and a compound which liberates carbon disulfide upon contact with the acid, whereby the deposit is dissolved by the liberated carbon disulfide.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: October 1, 1991
    Assignee: Atochem North America, Inc.
    Inventors: Paul J. McElligott, Jr., Stanley R. Sandler, John F. Kennoy, William J. Tuszynski
  • Polyalkyleneoxyamine catalysts for dialkyl disulfides and/or polysulfides used in dissolving sulfur
    Patent number: 4804485
    Abstract: A composition, useful for dissolving sulfur, which comprises a major amount of a disulfide or polysulfide and a catalyst comprising one or more polyalkyleneoxyamines or polyamines, and methods for using the composition in a system to prevent sulfur-plugging, are disclosed.
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: February 14, 1989
    Assignee: Pennwalt Corporation
    Inventors: Glenn T. Carroll, Michael J. Lindstrom, William J. Tuszynski
  • Presulfiding composition for preparing hydrotreating catalyst activity and process for presulfiding a hydrotreating catalyst
    Patent number: 4725571
    Abstract: A presulfiding agent which is a blend of an alkyl sulfide of the formula R.sub.1 S.sub.x R.sub.2 where R.sub.1 and R.sub.2 are alkyl groups having from 1 to 12 carbon atoms and x is 1 or 2 and an alkyl polysulfide of the formula R.sub.3 S.sub.y R.sub.4 wherein R.sub.3 and R.sub.4 are alkyl groups having from 1 to 20 carbon atoms and y is 2 to 8 provided that the total carbon atoms in R.sub.3 and R.sub.4 do not exceed 30 and y is greater than x, is disclosed herein along with a process employing said agent for sulfiding an oxidic hydrotreating catalyst to form a sulfided hydrotreating agent and a process of hydrotreating a petroleum fraction with such sulfided hydrotreating catalyst.
    Type: Grant
    Filed: January 23, 1987
    Date of Patent: February 16, 1988
    Inventor: William J. Tuszynski
  • Organopolysulfide-impregnated catalyst and methods of preparation and use
    Patent number: 4725569
    Abstract: An organopolysulfide-impregnated catalyst composition usable to hydrotreat petroleum and other hydrocarbon feedstock is described. Also disclosed are processes for making and using the composition.
    Type: Grant
    Filed: November 27, 1984
    Date of Patent: February 16, 1988
    Inventors: William J. Tuszynski, Dennis R. Stevens
  • Electrolytic recovery of lead from scrap
    Patent number: 4650553
    Abstract: Lead is recovered from lead-containing scrap metal in an electrolytic process employing an aqueous solution of C.sub.1-4 alkanesulfonic acid as the electrolyte at a high concentration, scrap lead as the anode, and an electroconductive cathode, impressing an electromotive force across the solution between the electrodes to provide a specified steady-state concentration of lead salt in the electrolyte, and continuing the process to deplete the anode and collect lead at the cathode.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: March 17, 1987
    Assignee: Pennwalt Corporation
    Inventors: Alfred F. Felgendreger, Ashley D. Nevers, William J. Tuszynski