Patents Represented by Attorney Leander F. Aulisio

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  • Process for the preparation of carbon fiber
    Patent number: 5804108
    Abstract: A process for preparing high strength carbon fiber from PAN-fiber wherein the time of the oxidation step is reduced from 30-90 minutes to about 8-15 minutes and product prepared therefrom.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: September 8, 1998
    Inventor: Kenneth Wilkinson
  • Process for the preparation of an acrylonitrile copolymer and product prepared therefrom
    Patent number: 5708111
    Abstract: A process for the rapid precipitation polymerization of acrylonitrile and a minor amount of a vinyl carboxylic acid comonomer in an environment of less than 10 ppm metal-ions to produce an acrylonitrile copolymer which, when pyrolyzed in an oxidizing atmosphere, produces a high quality carbon fiber.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: January 13, 1998
    Inventor: Kenneth Wilkinson
  • Process of preparing elastomeric thread
    Patent number: 5616675
    Abstract: A continuous solventless process for preparing elastomeric polyurethane/urea filaments and fibers in a vertical spinning tower and product prepared therefrom.
    Type: Grant
    Filed: February 8, 1995
    Date of Patent: April 1, 1997
    Inventor: Kenneth Wilkinson
  • Process of making PAN fibers
    Patent number: 5616292
    Abstract: A process for preparing PAN fibers under precipitation polymerization conditions in an aqueous solvent system.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: April 1, 1997
    Inventor: Kenneth Wilkinson
  • Reverse osmosis purification of water
    Patent number: 5525236
    Abstract: Addition of minor amounts of polymeric ethers, having oxyalkylene tentacles dangling from a carbon backbone, to ultrafiltration membranes improves rate of flow of purified water.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: June 11, 1996
    Inventor: Kenneth Wilkinson
  • Process for the preparation of an acrylonitrile copolymer and product prepared therefrom
    Patent number: 5523366
    Abstract: A process for the rapid precipitation polymerization of acrylonitrile and a minor amount of a vinyl carboxylic acid comonomer in an environment of less than 10 ppm metal-ions to produce an acrylonitrile copolymer which, when pyrolyzed in an oxidizing atmosphere, produces a high quality carbon fiber.
    Type: Grant
    Filed: October 28, 1994
    Date of Patent: June 4, 1996
    Inventor: Kenneth Wilkinson
  • Attachment for removal of smoke in laparoscopic surgery
    Patent number: 5417655
    Abstract: A twist-on attachment for laparoscopic port for withdrawal of smoke and other contaminants from a patient cavity during laparoscopic surgery to provide an atmosphere of enhanced air quality and improved visibility for the surgeon.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: May 23, 1995
    Inventors: Robert J. Divilio, L. Thomas Divilio
  • Process of making polyacrylonitrile fibers
    Patent number: 5364581
    Abstract: A process for the rapid precipitation polymerization of acrylonitrile and a minor amount of a vinyl carboxylic acid comonomer in an environment of less than 10 ppm metal-ions to produce an acrylonitrile copolymer which, when pyrolyzed in an oxidizing atmosphere, produces a high quality carbon fiber.
    Type: Grant
    Filed: May 6, 1993
    Date of Patent: November 15, 1994
    Inventor: Kenneth Wilkinson
  • Attachment for removal of smoke in laparoscopic surgery
    Patent number: 5336169
    Abstract: A device for removal of smoke from a patient cavity comprising (1) a hollow envelope having a plurality of rearward region-located apertures, a forward region-located first opening for accepting smoke and a substantially middle region-located second opening for dispensing smoke, (2) a first connector for attachment of the device to a laparoscopic assembly and (3) a second connector for attachment of the device to a vacuum pump suction line.
    Type: Grant
    Filed: March 2, 1993
    Date of Patent: August 9, 1994
    Inventors: Robert J. Divilio, L. Thomas Divilio