Patents by Inventor Michael G. Henk

Michael G. Henk 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).

  • Alloyed metal catalysts for the reduction of NO.sub.x in the exhaust gases from internal combustion engines containing excess oxygen
    Patent number: 5977012
    Abstract: Removal of carbon monoxide, hydrocarbons, and nitrogen oxides from the exhaust gas from lean-burn, diesel and other engines which produce exhaust gases containing oxygen in substantial excess of stoichiometric is provided by catalysts containing platinum alloyed with cobalt, nickel, copper, rhodium, palladium, silver or gold. Alloying is accomplished by thermal treatment or by colloidal methods. The catalysts are capable of reducing nitrogen oxides (NO.sub.x) within a predetermined range of engine operating temperatures.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: November 2, 1999
    Assignee: ASEC Manufacturing General Partnership
    Inventors: Karl C. C. Kharas, Heinz J. Robota, John G. Nunan, Michael G. Henk
  • Layered automotive catalytic composite
    Patent number: 5024824
    Abstract: This invention relates to a catalytic composite for treating an exhaust gas comprising a first support which is a refractory inorganic oxide having dispersed thereon at least one noble metal component and having dispersed immediately thereon an overlayer comprising at least one oxygen storage component and optionally a second support which is a refractory inorganic oxide. The first support may be selected from the group consisting of alumina, silica, titania, zirconia and aluminosilicates with alumina being preferred. Additionally, the noble metal component may be selected from the group consisting of platinum, palladium, rhodium, ruthernium and iridium. The oxygen storage component is an oxide of a metal which includes cerium, iron, nickel, cobalt lanthanum, neodymium, praesodymium, etc. and mixtures thereof. Cerium oxide is a preferred oxygen storage component.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: June 18, 1991
    Assignee: Allied-Signal Inc.
    Inventors: Michael G. Henk, Jack C. Summers, II
  • Layered automotive catalytic composite
    Patent number: 4868148
    Abstract: This invention relates to a catalytic composite for treating an exhaust gas comprising a first support which is refractory inorganic oxide having dispersed thereon at least one noble metal component and having dispersed immediately thereon an overlayer comprising at least one oxygen storage component and optionally a second support which is a refractory inorganic oxide. The first support may be selected from the group consisting of alumina, silica, titania, zirconia and aluminosilicates with alumina being preferred. Additionally, the noble metal component may be selected from the group consisting of platinum, palladium, rhodium, ruthenium and iridium. The oxygen storage component is an oxide of a metal which includes cerium, iron, nickel, cobalt lanthanum, neodymium, praesodymium, etc. and mixtures thereof. Cerium oxide is a preferred oxygen storage component.
    Type: Grant
    Filed: June 1, 1988
    Date of Patent: September 19, 1989
    Assignee: Allied-Signal Inc.
    Inventors: Michael G. Henk, Jack C. Summers, II
  • Polybutylene terephthalate
    Patent number: 4014858
    Abstract: Reaction of terephthalic acid and butane diol using a tetravalent tin catalyst having the organo-to-tin linkage.
    Type: Grant
    Filed: May 12, 1975
    Date of Patent: March 29, 1977
    Assignee: Standard Oil Company
    Inventors: Gary R. Chipman, Michael G. Henk, Jacob A. De Boer, Eli W. Blaha