Patents by Inventor Alexander Fleisher

Alexander Fleisher 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).

  • Extracting maltol and water from naturally occurring plant material containing maltol and water
    Patent number: 5641489
    Abstract: Disclosed is a method for recovering maltol and water from naturally occurring plant material containing maltol and water. The maltol is extracted by utilizing a water-immiscible extractant while simultaneously stripping water from the plant material.
    Type: Grant
    Filed: August 22, 1995
    Date of Patent: June 24, 1997
    Assignee: Florasynth Inc.
    Inventor: Alexander Fleisher
  • Radiation-enhanced recovery of maltol
    Patent number: 5441612
    Abstract: The yield and recovery of desirable aromatic principles such as maltol, from source material and especially from plant material, are improved by irradiating the source material with gamma radiation and then extracting from the irradiated material a product comprising the desired principle.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: August 15, 1995
    Assignee: Florasynth, Inc.
    Inventors: Alexander Fleisher, Ian Gorenstein, Olga Vselyubskaya, Ilya Nakhimovich
  • Recovery of maltol through aqueous extraction
    Patent number: 5440053
    Abstract: Disclosed is a process for recovering maltol from water-insoluble source material containing maltol, comprising extracting the maltol with a hot aqueous solution containing a solute which increases the immiscibility between said source material and said solution.
    Type: Grant
    Filed: May 9, 1994
    Date of Patent: August 8, 1995
    Assignee: Florasynth, Inc.
    Inventors: Alexander Fleisher, Yan Gorenshteyn, Ilya Nakhimovich, Olga Vselyubsvaya
  • Method for the recovery and purification of maltol
    Patent number: 5221756
    Abstract: Pure maltol is recovered from maltol containing mixture by co-distillation with an aliphatic or cylcloaliphatic hydrocarbon or hydrocarbon mixture in which the maltol is substantially insoluble.
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: June 22, 1993
    Assignee: Florasynth, Inc.
    Inventors: Alexander Fleisher, Richard J. Coleman, Guy J. Gloor, Yan Gorenshteyn