Patents by Inventor Ronen Weingarten

Ronen Weingarten 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: 20230076525
    Abstract: A method of preparing an organosilicon compound via selective silylation of ethylene is disclosed. The method comrises prises reacting via silylation (A) a hydridochlorosilane compound and (B) ethylene in the presence of (C) a catalyst, thereby preparing the organosilicon compound. The silylation may be selectively conducted as a dehydrogenative coupling to prepare the organosilicon ompound as a vinylchlorosilane compound, or as a hydrosilylation to prepare the organosilicon compound as an ethylchlorosilane compound. The catalyst (C) comprises a Ru(0) complex, and may be recycled for use in subsequent silylation reactions without purification. The organosilicon compound prepared according to the method is also disclosed.
    Type: Application
    Filed: December 17, 2020
    Publication date: March 9, 2023
    Inventors: David Lawrence WITKER, Juan Mauricio VENEGAS, Ronen WEINGARTEN, Dimitris E. KATSOULIS
  • Patent number: 9242952
    Abstract: A method to produce 5-hydroxymethylfurfural (HMF) is described in which a reactant including cellulose, lignocellulose, or a combination thereof, in a reaction mixture of a polar, aprotic solvent and an acid is reacted for a time, at a temperature, and at a hydrogen ion concentration wherein at least a portion of the cellulose or lignocellulose present in the reactant is converted to HMF. The reaction mixture is initially substantially devoid of water. As the reaction proceeds, dehydration of intermediates causes the water concentration in the reaction mixture to rise to no more than about 0.2 wt % water.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: January 26, 2016
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: James A. Dumesic, George W. Huber, Ronen Weingarten
  • Publication number: 20150274685
    Abstract: A method to produce 5-hydroxymethylfurfural (HMF) is described in which a reactant including cellulose, lignocellulose, or a combination thereof, in a reaction mixture of a polar, aprotic solvent and an acid is reacted for a time, at a temperature, and at a hydrogen ion concentration wherein at least a portion of the cellulose or lignocellulose present in the reactant is converted to HMF. The reaction mixture is initially substantially devoid of water. As the reaction proceeds, dehydration of intermediates causes the water concentration in the reaction mixture to rise to no more than about 0.2 wt % water.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 1, 2015
    Applicant: Wisconsin Alumni Research Foundation
    Inventors: James A. Dumesic, George W. Huber, Ronen Weingarten