Patents by Inventor Alan Leff

Alan Leff 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: 20130341940
    Abstract: ZipHer® is a decorative device to pull garment hard-to-reach or back zippers up and down. The way an “invisible zipper” is sewn into a garment makes the zipper invisible and hidden in a seam. The only part of the invisible zipper that is left accessible is the pull tab which lacks the large hole of traditional zippers. ZipHer is a stand alone zipper aid that is inserted into the tiny connector link between the zipper pull tab and the slider. The ZipHer hook is designed not to dislodge while zipping up or down and is strong enough to pull up zippers on form fitting garments. The flexible ball chain can be wrapped around the hand to accommodate various heights. ZipHer, commercially available at www.primaproductions.com, has been sold to over 600 people in the United States and many foreign countries.
    Type: Application
    Filed: June 9, 2013
    Publication date: December 26, 2013
    Inventors: Donna Taurman, Alan Leff
  • Publication number: 20020165119
    Abstract: Methods for treating or modulating inflammatory processes or chronic inflammatory conditions dependent upon cellular inflammation, such as asthma and rheumatoid arthritis are provided, as well as methods for inhibiting or blocking eosinophil migration and airway hyperresponsiveness. Also described is a method for treating or preventing the adhesion of granulocytes and other inflammatory cells into the tissue that is the site of the inflammation. In particular, the methods relate to the therapeutic or prophylactic use of compounds and compositions that inhibit cytosolic phospholipase A2.
    Type: Application
    Filed: January 31, 2002
    Publication date: November 7, 2002
    Inventor: Alan Leff
  • Patent number: 4822940
    Abstract: The present invention provides for a process for converting a feedstock comprising ethylene and/or acetylene to a product comprising liquid hydrocarbons. The process comprises maintaining said feedstock at a temperature in the range of about 700.degree. C. to about 1000.degree. C. for about 100 to about 1000 milliseconds to provide for said conversion. In one embodiment, the feedstock further comprises hydrogen. In another embodiment the feedstock comprises the product made by the process comprising heating a gaseous mixture comprising (i) hydrogen and (ii) natural gas and/or at least one light hydrocarbon at a temperature of at least about 1250.degree. C. for an effective period of time to provide said feedstock. In still another embodiment, the feedstock further comprises natural gas and/or at least one light hydrocarbon in addition to said ethylene and/or acetylene.
    Type: Grant
    Filed: August 17, 1987
    Date of Patent: April 18, 1989
    Assignee: The Standard Oil Company
    Inventors: Alan A. Leff, Joseph E. Metcalfe, Louis J. Velenyi, Christos Paparizos