Patents by Inventor Lionel B. Luttinger

Lionel B. Luttinger 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 carbon deposits using microemulsion cleaners
    Patent number: 5401325
    Abstract: This invention relates to a process for removing oil, grease, and baked-on carbon deposits from metal surfaces with microemulsion cleaners comprising (a) an organic solvent (b) a surfactant blend comprising an anionic and nonionic surfactant (c) a glycol ether (d) morpholine, and (e) water.
    Type: Grant
    Filed: July 29, 1993
    Date of Patent: March 28, 1995
    Assignee: Drew Chemical Corporation
    Inventors: Joseph Mihelic, Lionel B. Luttinger, Thomas A. Farrington
  • Microemulsion cleansers and their uses
    Patent number: 5401326
    Abstract: This invention relates to microemulsion cleaners comprising (a) an organic solvent (b) a surfactant blend comprising an anionic and nonionic surfactant (c) a glycol ether (d) morpholine, and (e) water. These cleaners can be used for removing baked-on oil and carbon deposits.
    Type: Grant
    Filed: July 29, 1993
    Date of Patent: March 28, 1995
    Assignee: Drew Chemical Corporation
    Inventors: Joseph Mihelic, Lionel B. Luttinger
  • Soft coating compositions for metals
    Patent number: 5338346
    Abstract: This invention relates to a soft coating for ferrous metal surfaces tanks, having a thickness of about 1-10 mils, comprising over-based alkaline aliphatic-aromatic organic sulfonate salt, an alkaline earth metal or zinc salt of a naphthalene sulfonate, a drying oil, a metal drier, and a paraffinic oil. The coating is particularly useful for coating ferrous metal surfaces, such as ballast tanks, which are exposed to seawater. The invention also relates to a process for inhibiting the corrosion of ballast tanks.
    Type: Grant
    Filed: June 21, 1993
    Date of Patent: August 16, 1994
    Assignee: Ashland Oil, Inc.
    Inventors: Lionel B. Luttinger, Rosanna P. Rudy, Paul J. Holtzapfel
  • Process of stripping gold and silver from carbon
    Patent number: 5073354
    Abstract: Gold and silver are stripped from activated carbon on which they are adsorbed as cyanide complexes by subjecting the activated carbon to a stripping solution comprising as the strippant an effective amount of a compound containing the carboxylate functionality. The compound is preferably selected from benzoic and substituted benzoic acids, and polyacrylic acids of less than about 100,000 m.w.
    Type: Grant
    Filed: September 26, 1990
    Date of Patent: December 17, 1991
    Assignee: Drew Chemical Corporation
    Inventors: Everett J. Fuller, Lionel B. Luttinger, Mark G. Lang
  • Recovery of metal values from ores
    Patent number: 4929274
    Abstract: Heap leaching of gold/silver ores with an aqueous alkali cyanide solution containing a surfactant hydrolyzable at the pH of the solution, the surfactant being present in an amount sufficient to increase the rate of metal value recovery without adversely affecting the carbon efficiency in the subsequent step of separating the metal cyanide value from the pregnant leach solution by absorption on carbon columns.
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: May 29, 1990
    Assignee: Drew Chemical Corporation
    Inventor: Lionel B. Luttinger