Patents by Inventor Maryellen Lavin

Maryellen Lavin 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).

  • Publication number: 20050271693
    Abstract: Provided is a method of formulating hydrophobic pesticides comprising emulsifying an aqueous phase and a water-immiscible phase to form a formulation; wherein the aqueous phase is comprised of water and optionally a freeze/thaw agent, one or more emulsifiers, or combinations thereof, and the water-immiscible phase comprises the hydrophobic pesticide and one or more emulsifiers.
    Type: Application
    Filed: July 28, 2005
    Publication date: December 8, 2005
    Inventors: Timothy Martin, MaryEllen Lavin
  • Patent number: 6946426
    Abstract: Provided is a method of formulating hydrophobic pesticides comprising emulsifying an aqueous phase and a water-immiscible phase to form a formulation; wherein the aqueous phase is comprised of water and optionally a freeze/thaw agent, one or more emulsifiers, or combinations thereof, and the water-immiscible phase comprises the hydrophobic pesticide and one or more emulsifiers.
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: September 20, 2005
    Assignee: FMC Corporation
    Inventors: Timothy M. Martin, MaryEllen Lavin
  • Publication number: 20030211128
    Abstract: Provided is a method of formulating hydrophobic pesticides comprising emulsifying an aqueous phase and a water-immiscible phase to form a formulation; wherein the aqueous phase is comprised of water and optionally a freeze/thaw agent, one or more emulsifiers, or combinations thereof, and the water-immiscible phase comprises the hydrophobic pesticide and one or more emulsifiers.
    Type: Application
    Filed: February 10, 2003
    Publication date: November 13, 2003
    Inventors: Timothy M Martin, MaryEllen Lavin
  • Patent number: 6313059
    Abstract: Difluoromethane (R-32) is of current interest as a partial replacement for chlorodifluoromethane (R-22) refrigerant heretofore widely used in vapor compression refrigeration systems. R-32 has, however, proved to be more reactive than is desirable with the zeolite A adsorbent-desiccant compositions used in such systems to prevent corrosion and freeze-up problems. The potassium cation form of a zeolite A molecular sieve—with at least 60 percent of the sodium cations replaced with potassium ions, agglomerated with a clay binder, and pore-reduced to essentially exclude the adsorption of R-32 having essentially no reactivity with difluoromethane, and having a surface ratio of silicon to aluminum of less than about 1.7 mol/mol as determined by X-ray photoelectron spectroscopy—has been found to be an effective desiccant for refrigerants comprising difluoromethane.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: November 6, 2001
    Inventors: Maryellen Lavin, Alan P. Cohen, Jack E. Hurst
  • Patent number: 6168720
    Abstract: Difluoromethane (R-32) is of current interest as a partial replacement for chlorodifluoromethane (R-22) refrigerant heretofore widely used in vapor compression refrigeration systems. R-32 has, however, proved to be more reactive than is desirable with the zeolite A adsorbent-desiccant compositions used in such systems to prevent corrosion and freeze-up problems. The potassium cation form of a zeolite A molecular sieve—with at least 60 percent of the sodium cations replaced with potassium ions, agglomerated with a clay binder, and pore-reduced to essentially exclude the adsorption of R-32 having essentially no reactivity with difluoromethane, and having a surface ratio of silicon to aluminum of less than about 1.7 mol/mol as determined by X-ray photoelectron spectroscopy—has been found to be an effective desiccant for refrigerants comprising difluoromethane.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: January 2, 2001
    Assignee: UOP LLC
    Inventors: Maryellen Lavin, Alan P. Cohen, Jack E. Hurst
  • Patent number: 6020281
    Abstract: Difluoromethane (R-32) is of current interest as a partial replacement for chlorodifluoromethane (R-22) refrigerant heretofore widely used in vapor compression refrigeration systems. R-32 has, however, proved to be more reactive than is desirable with the zeolite A adsorbent-desiccant compositions used in such systems to prevent corrosion and freeze-up problems. The potassium cation form of a zeolite A molecular sieve--with at least 60 per cent of the sodium cations replaced with potassium ions, agglomerated with a clay binder and pore-reduced to essentially exclude the adsorption of R-32, and having essentially no reactivity with difluoromethane--has been found to be an effective desiccant for refrigerants comprising difluoromethane.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: February 1, 2000
    Assignee: UOP LLC
    Inventors: MaryEllen Lavin, Alan P. Cohen, Jack E. Hurst
  • Patent number: 5347822
    Abstract: Difluoromethane (R32) is of current interest as a partial replacement for chlorodifluoromethane (R22) refrigerant heretofore widely used in vapor compression refrigeration systems. R32 has, however, proved to be more reactive than is desirable with the zeolite A adsorbent-desiccant compositions used in such systems to prevent corrosion and freeze-up problems. The sodium cation form of a zeolite having the crystal structure of zeolite B is found to be an effective adsorbent for that purpose and to be significantly less reactive with the R32.
    Type: Grant
    Filed: December 23, 1993
    Date of Patent: September 20, 1994
    Assignee: UOP
    Inventors: Maryellen Lavin, Alan P. Cohen, Nanette Greenlay, Thomas R. Cannan, Richard J. Hinchey