Patents by Inventor Xiwang Qi

Xiwang Qi 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).

  • Patent number: 10413880
    Abstract: The present disclosure relates to a substrate containing passive NOx adsorption (PNA) materials for treatment of gases, and washcoats for use in preparing such a substrate. Also provided are methods of preparation of the PNA materials, as well as methods of preparation of the substrate containing the PNA materials. More specifically, the present disclosure relates to a coated substrate containing PNA materials for PNA systems, useful in the treatment of exhaust gases. Also disclosed are exhaust treatment systems, and vehicles, such as diesel or gasoline vehicles, particularly light-duty diesel or gasoline vehicles, using catalytic converters and exhaust treatment systems using the coated substrates.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: September 17, 2019
    Assignee: Umicore AG & Co. KG
    Inventors: Maximilian A. Biberger, Bryant Kearl, Qinghua Yin, Xiwang Qi
  • Publication number: 20190009244
    Abstract: The present disclosure relates to a substrate containing passive NOx adsorption (PNA) materials for treatment of gases, and washcoats for use in preparing such a substrate. Also provided are methods of preparation of the PNA materials, as well as methods of preparation of the substrate containing the PNA materials. More specifically, the present disclosure relates to a coated substrate containing PNA materials for PNA systems, useful in the treatment of exhaust gases. Also disclosed are exhaust treatment systems, and vehicles, such as diesel or gasoline vehicles, particularly light-duty diesel or gasoline vehicles, using catalytic converters and exhaust treatment systems using the coated substrates.
    Type: Application
    Filed: August 27, 2018
    Publication date: January 10, 2019
    Inventors: Maximilian A. Biberger, Bryant Kearl, Qinghua Yin, Xiwang Qi
  • Patent number: 10124322
    Abstract: The present disclosure relates to micron-sized particle used for catalyzing and storing NOx gases, such as those found in vehicle exhaust emissions, washcoats employing micron-sized particle used for catalyzing and storing NOx gases, washcoat coated substrates, lean NOx trap (LNT) systems, and vehicles using such systems. Also provided are methods of preparing micron-sized particle used for catalyzing and storing NOx gases, as well as preparation of washcoats and coated substrates. More specifically, the present disclosure relates to a lean NOx trapping materials, wherein the materials include a NOx catalytic component attached to a micron-sized carrier particle and a NOx storage component, as well as washcoats and coated substrates useful in the treatment of exhaust gases. In some embodiments, a portion of the NOx storage component is attached to the micron-sized carrier particle.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: November 13, 2018
    Assignee: Umicore AG & Co. KG
    Inventors: Maximilian A. Biberger, Bryant Kearl, Qinghua Yin, Xiwang Qi, David Leamon
  • Publication number: 20180318763
    Abstract: The present disclosure relates to a substrate containing passive NOx adsorption (PNA) materials for treatment of gases, and washcoats for use in preparing such a substrate. Also provided are methods of preparation of the PNA materials, as well as methods of preparation of the substrate containing the PNA materials. More specifically, the present disclosure relates to a coated substrate containing PNA materials for PNA systems, useful in the treatment of exhaust gases. Also disclosed are exhaust treatment systems, and vehicles, such as diesel or gasoline vehicles, particularly light-duty diesel or gasoline vehicles, using catalytic converters and exhaust treatment systems using the coated substrates.
    Type: Application
    Filed: October 28, 2016
    Publication date: November 8, 2018
    Inventors: Maximilian A. Biberger, Bryant Kearl, Qinghua Yin, Xiwang Qi
  • Patent number: 10086356
    Abstract: The present disclosure relates to a substrate containing passive NOx adsorption (PNA) materials for treatment of gases, and washcoats for use in preparing such a substrate. Also provided are methods of preparation of the PNA materials, as well as methods of preparation of the substrate containing the PNA materials. More specifically, the present disclosure relates to a coated substrate containing PNA materials for PNA systems, useful in the treatment of exhaust gases. Also disclosed are exhaust treatment systems, and vehicles, such as diesel or gasoline vehicles, particularly light-duty diesel or gasoline vehicles, using catalytic converters and exhaust treatment systems using the coated substrates.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: October 2, 2018
    Assignee: Umicore AG & Co. KG
    Inventors: Maximilian A. Biberger, Bryant Kearl, Qinghua Yin, Xiwang Qi
  • Publication number: 20180207620
    Abstract: The present disclosure relates to micron-sized particle used for catalyzing and storing NOx gases, such as those found in vehicle exhaust emissions, washcoats employing micron-sized particle used for catalyzing and storing NOx gases, washcoat coated substrates, lean NOx trap (LNT) systems, and vehicles using such systems. Also provided are methods of preparing micron-sized particle used for catalyzing and storing NOx gases, as well as preparation of washcoats and coated substrates. More specifically, the present disclosure relates to a lean NOx trapping materials, wherein the materials include a NOx catalytic component attached to a micron-sized carrier particle and a NOx storage component, as well as washcoats and coated substrates useful in the treatment of exhaust gases. In some embodiments, a portion of the NOx storage component is attached to the micron-sized carrier particle.
    Type: Application
    Filed: March 23, 2018
    Publication date: July 26, 2018
    Inventors: Maximilian Biberger, Bryant Kearl, Qinghua Yin, Xiwang Qi, David Leamon
  • Publication number: 20180200700
    Abstract: Disclosed are washcoats, coated substrates formed from such washcoats, and catalytic converters for use in diesel applications, such as heavy duty diesel applications. Methods of preparing the coated substrates are also disclosed.
    Type: Application
    Filed: March 6, 2018
    Publication date: July 19, 2018
    Inventors: Qinghua Yin, Xiwang Qi, Maximilian Biberger
  • Patent number: 9950316
    Abstract: Disclosed are washcoats, coated substrates formed from such washcoats, and catalytic converters for use in diesel applications, such as heavy duty diesel applications. Methods of preparing the coated substrates are also disclosed.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: April 24, 2018
    Assignee: Umicore AG & Co. KG
    Inventors: Qinghua Yin, Xiwang Qi, Maximilian A. Biberger
  • Publication number: 20180093249
    Abstract: The present disclosure relates to a substrate containing passive NOx adsorption (PNA) materials for treatment of gases, and washcoats for use in preparing such a substrate. Also provided are methods of preparation of the PNA materials, as well as methods of preparation of the substrate containing the PNA materials. More specifically, the present disclosure relates to a coated substrate containing PNA materials for PNA systems, useful in the treatment of exhaust gases. Also disclosed are exhaust treatment systems, and vehicles, such as diesel or gasoline vehicles, particularly light-duty diesel or gasoline vehicles, using catalytic converters and exhaust treatment systems using the coated substrates.
    Type: Application
    Filed: May 25, 2017
    Publication date: April 5, 2018
    Inventors: Maximilian A. BIBERGER, Bryant KEARL, Qinghua YIN, Xiwang QI
  • Publication number: 20170274367
    Abstract: Metal substrates suitable for use as catalyst supports for catalytic converters are disclosed, as well as methods of making such substrates. A coating of boehmite particles in aqueous suspension is applied to the metal substrate and calcined. Any further desired washcoats can then be applied to the resulting calcined boehmite-coated metal substrate. One exemplary metal for use as a substrate is stainless steel.
    Type: Application
    Filed: August 28, 2015
    Publication date: September 28, 2017
    Inventors: David BURROUGHS, Qinghua YIN, Xiwang QI, Maximilian A. BIBERGER
  • Publication number: 20170189892
    Abstract: The present invention relates to coated substrates useful in catalytic converters. The coated substrates can have two washcoat layers, and in some embodiments, the first washcoat layer is divided into two zones. The substrates can be used in catalytic converters and emission control systems for treatment of exhaust gases from gasoline engines.
    Type: Application
    Filed: December 23, 2016
    Publication date: July 6, 2017
    Inventors: Qinghua YIN, Xiwang QI, Bryant KEARL, Maximilian A. BIBERGER
  • Patent number: 9687811
    Abstract: The present disclosure relates to a substrate containing passive NOx adsorption (PNA) materials for treatment of gases, and washcoats for use in preparing such a substrate. Also provided are methods of preparation of the PNA materials, as well as methods of preparation of the substrate containing the PNA materials. More specifically, the present disclosure relates to a coated substrate containing PNA materials for PNA systems, useful in the treatment of exhaust gases. Also disclosed are exhaust treatment systems, and vehicles, such as diesel or gasoline vehicles, particularly light-duty diesel or gasoline vehicles, using catalytic converters and exhaust treatment systems using the coated substrates.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: June 27, 2017
    Assignee: SDCmaterials, Inc.
    Inventors: Maximilian A. Biberger, Bryant Kearl, Qinghua Yin, Xiwang Qi
  • Publication number: 20170165653
    Abstract: Disclosed are washcoats, coated substrates formed from such washcoats, and catalytic converters for use in diesel applications, such as heavy duty diesel applications. Methods of preparing the coated substrates are also disclosed.
    Type: Application
    Filed: December 21, 2016
    Publication date: June 15, 2017
    Inventors: Qinghua YIN, Xiwang QI, Maximilian A. BIBERGER
  • Publication number: 20170167338
    Abstract: The present disclosure relates to a substrate comprising nanomaterials for treatment of gases, washcoats for use in preparing such a substrate, and methods of preparation of the nanomaterials and the substrate comprising the nanomaterials. More specifically, the present disclosure relates to a substrate comprising nanomaterial for three-way catalytic converters for treatment of exhaust gases.
    Type: Application
    Filed: November 23, 2016
    Publication date: June 15, 2017
    Inventors: Xiwang QI, Maximilian A. BIBERGER
  • Publication number: 20170151552
    Abstract: The present disclosure relates to a substrate comprising nanoparticle catalysts and NOx storage materials for treatment of gases, and washcoats for use in preparing such a substrate. Also provided are methods of preparation of the nanoparticle catalysts and NOx storage materials, as well as methods of preparation of the substrate comprising the nanoparticle catalysts and NOx storage materials. More specifically, the present disclosure relates to a coated substrate comprising nanoparticle catalysts and NOx storage materials for lean NOx trap (LNT) systems, useful in the treatment of exhaust gases.
    Type: Application
    Filed: November 8, 2016
    Publication date: June 1, 2017
    Inventors: Bryant KEARL, Qinghua YIN, Xiwang QI, David LEAMON, Maximilian A. BIBERGER
  • Patent number: 9662637
    Abstract: Described is related to a nano-structured composite absorber for air detoxing and deodoring at ambient temperature to prevent harmful chemicals in the air from damaging human health. The nano-structured composite absorber consists of nano-porous carbon, zeolites with nano-sized pores and at least 1 other component chosen from nano-porous rare earth oxides and nano-sized catalysts. The synergetic action of those nano-structured components can effectively remove toxic chemicals including, but not limited to formaldehyde, benzene, toluene, xylene, propene, butadiene, acetone, carbon monoxide, nitric oxide, nitrogen dioxide, sulfur dioxide, hydrogen sulfide, ammonia, alcohols, chlorine, mercaptans, as well as malodors, such cigarette smoke, net/fish/poultry odors and bathroom/toilet smells.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: May 30, 2017
    Inventors: Xiwang Qi, Mei Jiang
  • Patent number: 9586179
    Abstract: Disclosed are, inter alia, methods of forming coated substrates for use in catalytic converters, as well as washcoat compositions and methods suitable for using in preparation of the coated substrates, and the coated substrates formed thereby, which in some cases use iron-exchanged zeolite particles that provide enhanced performance such as lower light-off temperatures and lower pollutant levels in exhaust gases. The catalytic material is prepared by a plasma-based method, yielding catalytic material with a lower tendency to migrate on support at high temperatures, and thus less prone to catalyst aging after prolonged use. Also disclosed are catalytic converters using the coated substrates, which have favorable properties as compared to catalytic converters using catalysts deposited on substrates using solution chemistry.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: March 7, 2017
    Assignee: SDCmaterials, Inc.
    Inventors: Qinghua Yin, Xiwang Qi, Maximilian A. Biberger, David Leamon
  • Patent number: 9566568
    Abstract: Disclosed are washcoats, coated substrates formed from such washcoats, and catalytic converters for use in diesel applications, such as heavy duty diesel applications. Methods of preparing the coated substrates are also disclosed.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: February 14, 2017
    Assignee: SDCmaterials, Inc.
    Inventors: Qinghua Yin, Xiwang Qi, Maximilian A. Biberger
  • Patent number: 9533299
    Abstract: The present disclosure relates to a substrate comprising nanomaterials for treatment of gases, washcoats for use in preparing such a substrate, and methods of preparation of the nanomaterials and the substrate comprising the nanomaterials. More specifically, the present disclosure relates to a substrate comprising nanomaterial for three-way catalytic converters for treatment of exhaust gases.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: January 3, 2017
    Assignee: SDCmaterials, Inc.
    Inventors: Xiwang Qi, Maximilian A. Biberger
  • Patent number: 9533289
    Abstract: Embodiments of present inventions are directed to an advanced catalyst. The advanced catalyst includes a honeycomb structure with an at least one nano-particle on the honeycomb structure. The advanced catalyst used in diesel engines is a two-way catalyst. The advanced catalyst used in gas engines is a three-way catalyst. In both the two-way catalyst and the three-way catalyst, the at least one nano-particle includes nano-active material and nano-support. The nano-support is typically alumina. In the two-way catalyst, the nano-active material is platinum. In the three-way catalyst, the nano-active material is platinum, palladium, rhodium, or an alloy. The alloy is of platinum, palladium, and rhodium.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: January 3, 2017
    Assignee: SDCmaterials, Inc.
    Inventors: Qinghua Yin, Xiwang Qi, Maximilian A. Biberger