Patents by Inventor Henry E. Hoffman

Henry E. Hoffman 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).

  • Patent number: 11931122
    Abstract: A teleoperated surgical system is provided comprising: a first robotic surgical instrument; an image capture; a user display; a user input command device coupled to receive user input commands to control movement of the first robotic surgical instrument; and a movement controller coupled to scale a rate of movement of the first robotic surgical instrument, based at least in part upon a surgical skill level at using the first robotic surgical instrument of the user providing the received user input commands, from a rate of movement indicated by the user input commands received at the user input command device.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: March 19, 2024
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: William C. Nowlin, Mahdi Azizian, Simon P. DiMaio, Brian D. Hoffman, Anthony M. Jarc, Henry C. Lin, May Quo-Mei Liu, Ian E. McDowall, Brent Tokarchuk
  • Patent number: 4889703
    Abstract: A process is disclosed for producing tungstosilicic acid which involves adding sodium silicate to a first solution of sodium tungstate while assuring that the pH of the resulting mixture is from about 2 to about 6, the pH adjustments being made with a cation exchange resin on the hydrogen cycle, to produce a second solution. The solids are removed from the second solution which is digested at a temperature of greater than about 50.degree. C. and then contacted with a cation exchange resin on the hydrogen cycle to produce a third solution which is essentially a tungstosilicic acid solution containing at least about 99% by weight of the starting tungsten as tungstosilicic acid.
    Type: Grant
    Filed: June 16, 1989
    Date of Patent: December 26, 1989
    Assignee: GTE Products Corporation
    Inventors: Kenneth T. Reilly, Alan D. Douglas, Henry E. Hoffman
  • Patent number: 4604278
    Abstract: A process is disclosed for producing ammonium tetrathiomolybdate. The process involves reacting an ammoniacal molybdate solution with hydrogen sulfide gas, the solution and the gas being in a closed system and the flow of the gas being regulated at an elevated pressure to form a slurry consisting essentially of a solid essentially all of which is ammonium tetrathiomolybdate containing a portion of the starting molybdenum and a mother liquor containing the balance of the molybdenum. The slurry is then cooled to ambient temperature and the solid is removed from the major portion of the mother liquor. The solid is then washed with water and with alcohol followed by removal of the resulting respective water and alcohol washes to remove the remaining portion of the mother liquor and soluble impurities from the solid. The resulting washed solid is then dried at ambient temperature to form the final ammonium tetrathiomolybdate.
    Type: Grant
    Filed: May 17, 1985
    Date of Patent: August 5, 1986
    Assignee: GTE Products Corporation
    Inventors: Kenneth T. Reilly, Robin W. Munn, Henry E. Hoffman, Alan D. Douglas
  • Patent number: 4604277
    Abstract: A process is disclosed for producing ammonium tetrathiotungstate. The process involves reacting an ammoniacal tungstate solution with hydrogen sulfide gas, the solution and the gas being in a closed system and the flow of the gas being regulated at an elevated pressure to form a slurry consisting essentially of a solid essentially all of which is ammonium tetrathiotungstate containing a portion of the starting tungsten and a mother liquor containing the balance of the tungsten. The slurry is then cooled to ambient temperature and the solid is removed from the major portion of the mother liquor. The solid is then washed with water and with alcohol followed by removal of the resulting respective water and alcohol washes to remove the remaining portion of the mother liquor and soluble impurities from the solid. The resulting washed solid is then dried at ambient temperature to form the final ammonium tetrathiotungstate.
    Type: Grant
    Filed: August 16, 1985
    Date of Patent: August 5, 1986
    Assignee: GTE Products Corporation
    Inventors: Robin W. Munn, Kenneth T. Reilly, Henry E. Hoffman