Patents by Inventor Afif M. Seyam

Afif M. Seyam 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).

  • Lubricant additives
    Patent number: 9777021
    Abstract: Lubricant additives useful as friction reducing additives are disclosed herein that have a structure according to general formula I, where M is metal such as Ag, Au, Zn or Cu, and R1, R2, and R3, are each a hydrogen, or an alkyl, a substituted alkyl, or an aryl group.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: October 3, 2017
    Assignee: Qatar Foundation
    Inventors: Massimiliano Delferro, Tobin J. Marks, Q. Jane Wang, Yip-Wah Chung, Hassan S. Bazzi, Afif M. Seyam, Michael Desanker, Blake Johnson, Danni Jin
  • LUBRICANT ADDITIVES
    Publication number: 20170217993
    Abstract: Lubricant additives useful as friction reducing additives are disclosed herein that have a structure according to general formula I, where M is metal such as Ag, Au, Zn or Cu, and R1, R2, and R3, are each a hydrogen, or an alkyl, a substituted alkyl, or an aryl group.
    Type: Application
    Filed: February 2, 2016
    Publication date: August 3, 2017
    Inventors: Massimiliano Delferro, Tobin J. Marks, Q. Jane Wang, Yip-Wah Chung, Hassan S. Bazzi, Afif M. Seyam, Michael Desanker, Blake Johnson, Danni Jin
  • Rare earth homogeneous catalysts for the ring-opening polymerization and copolymerization of strained-ring olefins
    Patent number: 5422406
    Abstract: The organolanthanide hydrides (Cp'.sub.2 LnH).sub.2 (Cp'=.eta..sup.5 -Me.sub.5 C.sub.5 ;Ln=Sm,Lu) rapidly catalyze the copolymerization of methylenecyclopropane and ethylene to cleanly yield high molecular weight polyolefins of microstructure {[CH.sub.2 CH.sub.2 ].sub.x [CH.sub.2 CH.sub.2 C(CH.sub.2)].sub.y }n via sequential olefin insertion and ring-opening/.beta.-alkyl shift processes. Homopolymerization of methylenecyclopropane likewise cleanly yields polymers of the structure [CH.sub.2 CH.sub.2 C(CH.sub.2)].sub.n.
    Type: Grant
    Filed: February 1, 1994
    Date of Patent: June 6, 1995
    Assignee: Northwestern University
    Inventors: Xinmin Yang, Afif M. Seyam, Tobin J. Marks