Patents by Inventor David Lam

David Lam 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: 10940635
    Abstract: Methods and systems are provided for heating a dielectric preform material. An exemplary method includes inserting the preform material into a microwave cavity along a longitudinal axis of the microwave cavity and supplying the microwave cavity with microwave power having a frequency that corresponds to an axial wavelength along the longitudinal axis of the microwave cavity. The axial wavelength is greater than a length of the preform material along the longitudinal axis. The method includes heating the preform material within the microwave cavity by the microwave power and determining temperatures of the preform material at one or more locations on a surface of the preform material. The method further includes adjusting, based on the temperatures of the preform material, the microwave frequency to achieve substantially uniform heating at least on a sidewall of the preform material along the longitudinal axis.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: March 9, 2021
    Assignee: MKS Instruments, Inc.
    Inventors: Xing Chen, David Lam, Kevin W. Wenzel, Ilya Pokidov
  • Publication number: 20180345569
    Abstract: Methods and systems are provided for heating a dielectric preform material. An exemplary method includes inserting the preform material into a microwave cavity along a longitudinal axis of the microwave cavity and supplying the microwave cavity with microwave power having a frequency that corresponds to an axial wavelength along the longitudinal axis of the microwave cavity. The axial wavelength is greater than a length of the preform material along the longitudinal axis. The method includes heating the preform material within the microwave cavity by the microwave power and determining temperatures of the preform material at one or more locations on a surface of the preform material. The method further includes adjusting, based on the temperatures of the preform material, the microwave frequency to achieve substantially uniform heating at least on a sidewall of the preform material along the longitudinal axis.
    Type: Application
    Filed: August 10, 2018
    Publication date: December 6, 2018
    Inventors: Xing Chen, David Lam, Kevin W. Wenzel, Ilya Pokidov
  • Patent number: 10071521
    Abstract: Methods and systems are provided for heating a dielectric preform material. An exemplary method includes inserting the preform material into a microwave cavity along a longitudinal axis of the microwave cavity and supplying the microwave cavity with microwave power having a frequency that corresponds to an axial wavelength along the longitudinal axis of the microwave cavity. The axial wavelength is greater than a length of the preform material along the longitudinal axis. The method includes heating the preform material within the microwave cavity by the microwave power and determining temperatures of the preform material at one or more locations on a surface of the preform material. The method further includes adjusting, based on the temperatures of the preform material, the microwave frequency to achieve substantially uniform heating at least on a sidewall of the preform material along the longitudinal axis.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: September 11, 2018
    Assignee: MKS Instruments, Inc.
    Inventors: Xing Chen, David Lam, Kevin W. Wenzel, Ilya Pokidov
  • Publication number: 20180233333
    Abstract: An apparatus for abatement of gases is provided. The apparatus includes a toroidal plasma chamber having a plurality of inlets and an outlet, and at least one chamber wall. One or more magnetic cores are disposed relative to the toroidal plasma chamber. The plasma chamber confines a toroidal plasma. A second gas inlet is positioned on the toroidal plasma chamber between a first gas inlet and the gas outlet at a distance d from the gas outlet, such that a toroidal plasma channel volume between the first gas inlet and the second gas inlet in the is substantially filled by the inert gas, the distance d based on a desired residence time of the gas to be abated.
    Type: Application
    Filed: April 12, 2018
    Publication date: August 16, 2018
    Inventors: Xing Chen, Ilya Pokidov, Feng Tian, Ken Tran, David Lam, Kevin W. Wenzel
  • Publication number: 20180201404
    Abstract: An intermodal device comprising: a base; a perimetric rectangular frame; the frame comprising a first rail mounted to the base, a second rail in spaced relation to the first rail and a plurality of posts connecting the first and second rail; the posts being pivotally mounted to the first rail and in sliding engagement with the second rail; wherein the posts are arranged to slide along the second rail from a position at right angles to the first and second rails to a position parallel to the rails, the frame arranged to move from an expanded position to a collapsed position as a result of the movement of the posts.
    Type: Application
    Filed: June 23, 2016
    Publication date: July 19, 2018
    Inventors: Zhi Loong Lam, Zhiqun Lam, Choon Sen David Lam, Zhixiu Lam
  • Publication number: 20180192757
    Abstract: A razor blade cleaning device (10), for cleaning the or each blade of a safety razor or cartridge, comprises an open cleaning chamber, suitably dimensioned for receiving a razor head or cartridge, wherein the device is configured such that a fluid is feedable through the cleaning chamber to contact the blades of a razor head or cartridge disposed therein.
    Type: Application
    Filed: July 10, 2015
    Publication date: July 12, 2018
    Inventor: David LAM
  • Patent number: 9991098
    Abstract: An apparatus for abatement of gases is provided. The apparatus includes a toroidal plasma chamber having a plurality of inlets and an outlet, and at least one chamber wall. One or more magnetic cores are disposed relative to the toroidal plasma chamber. The plasma chamber confines a toroidal plasma. A second gas inlet is positioned on the toroidal plasma chamber between a first gas inlet and the gas outlet at a distance d from the gas outlet, such that a toroidal plasma channel volume between the first gas inlet and the second gas inlet in the is substantially filled by the inert gas, the distance d based on a desired residence time of the gas to be abated.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: June 5, 2018
    Assignee: MKS Instruments, Inc.
    Inventors: Xing Chen, Ilya Pokidov, Feng Tian, Ken Tran, David Lam, Kevin W. Wenzel
  • Publication number: 20170213704
    Abstract: An apparatus for abatement of gases is provided. The apparatus includes a toroidal plasma chamber having a plurality of inlets and an outlet, and at least one chamber wall. One or more magnetic cores are disposed relative to the toroidal plasma chamber. The plasma chamber confines a toroidal plasma. A second gas inlet is positioned on the toroidal plasma chamber between a first gas inlet and the gas outlet at a distance d from the gas outlet, such that a toroidal plasma channel volume between the first gas inlet and the second gas inlet in the is substantially filled by the inert gas, the distance d based on a desired residence time of the gas to be abated.
    Type: Application
    Filed: April 10, 2017
    Publication date: July 27, 2017
    Inventors: Xing Chen, Ilya Pokidov, Feng Tian, Ken Tran, David Lam, Kevin W. Wenzel
  • Publication number: 20170173846
    Abstract: Methods and systems are provided for heating a dielectric preform material. An exemplary method includes inserting the preform material into a microwave cavity along a longitudinal axis of the microwave cavity and supplying the microwave cavity with microwave power having a frequency that corresponds to an axial wavelength along the longitudinal axis of the microwave cavity. The axial wavelength is greater than a length of the preform material along the longitudinal axis. The method includes heating the preform material within the microwave cavity by the microwave power and determining temperatures of the preform material at one or more locations on a surface of the preform material. The method further includes adjusting, based on the temperatures of the preform material, the microwave frequency to achieve substantially uniform heating at least on a sidewall of the preform material along the longitudinal axis.
    Type: Application
    Filed: December 22, 2015
    Publication date: June 22, 2017
    Inventors: Xing Chen, David Lam, Kevin W. Wenzel, Ilya Pokidov
  • Patent number: 9630142
    Abstract: An apparatus for abatement of gases is provided. The apparatus includes a toroidal plasma chamber having a plurality of inlets and an outlet, and at least one chamber wall. One or more magnetic cores are disposed relative to the toroidal plasma chamber. The plasma chamber confines a toroidal plasma. A second gas inlet is positioned on the toroidal plasma chamber between a first gas inlet and the gas outlet at a distance d from the gas outlet, such that a toroidal plasma channel volume between the first gas inlet and the second gas inlet in the is substantially filled by the inert gas, the distance d based on a desired residence time of the gas to be abated.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: April 25, 2017
    Assignee: MKS Instruments, Inc.
    Inventors: Xing Chen, Ilya Pokidov, Feng Tian, Ken Tran, David Lam, Kevin W. Wenzel
  • Patent number: 9499844
    Abstract: The invention provides novel methods for making or modifying oils, e.g., plant animal or microbial oils, such as vegetable oils or related compounds, that are low in a particular fatty acid(s), for example, low linoleic oils, linolenic oils, low palmitic oils, low stearic oils or oils low in a combination thereof.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: November 22, 2016
    Assignee: DSM IP ASSETS B.V.
    Inventors: David Lam, David Weiner, Tim S. Hitchman, Nelson R. Barton, Jonathan D. Lyon
  • Publication number: 20160168604
    Abstract: The invention provides novel methods for making or modifying oils, e.g., plant animal or microbial oils, such as vegetable oils or related compounds, that are low in a particular fatty acid(s), for example, low linoleic oils, linolenic oils, low palmitic oils, low stearic oils or oils low in a combination thereof.
    Type: Application
    Filed: December 11, 2015
    Publication date: June 16, 2016
    Inventors: David LAM, David WEINER, Tim S. HITCHMAN, Nelson R. BARTON, Jonathan D. LYON
  • Patent number: 9243267
    Abstract: The invention provides novel methods for making or modifying oils, e.g., plant animal or microbial oils, such as vegetable oils or related compounds, that are low in a particular fatty acid(s), for example, low linoleic oils, linolenic oils, low palmitic oils, low stearic oils or oils low in a combination thereof.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: January 26, 2016
    Assignee: DSM IP ASSETS B.V.
    Inventors: David Lam, David Weiner, Tim S. Hitchman, Nelson R. Barton, Jonathan D. Lyon
  • Publication number: 20150344918
    Abstract: The invention provides novel methods for making or modifying oils, e.g., plant animal or microbial oils, such as vegetable oils or related compounds, that are low in a particular fatty acid(s), for example, low linoleic oils, linolenic oils, low palmitic oils, low stearic oils or oils low in a combination thereof.
    Type: Application
    Filed: February 6, 2015
    Publication date: December 3, 2015
    Inventors: David LAM, David WEINER, Tim S. HITCHMAN, Nelson R. BARTON, Jonathan D. LYON
  • Publication number: 20150203786
    Abstract: The invention provides the invention provides compositions and methods for the enzymatic treatment (“bleaching” or “de-colorizing”) of chlorophyll-comprising compositions, e.g., algae preparations, chlorophyll-containing or chlorophyll-contaminated feeds, foods or oils, for example, vegetable oils, including oils processed from oilseeds, such as canola (rapeseed) oil or soybean oil, or oil fruits, such as palm oil. In one aspect, the invention provides methods using a chlorophyllase enzyme for the enzymatic hydrolysis of chlorophyll in an algae, an animal (e.g., a fish) or plant preparation, a food or an oil. In one aspect, the chlorophyllase is immobilized onto a silica. The invention also provides compositions of manufacture and detergents.
    Type: Application
    Filed: March 27, 2015
    Publication date: July 23, 2015
    Inventors: David LAM, David WEINER, Timothy HITCHMAN, Nelson Robert BARTON, Mark BURK
  • Patent number: 9034612
    Abstract: The invention provides novel methods for making or modifying oils, e.g., plant animal or microbial oils, such as vegetable oils or related compounds, that are low in a particular fatty acid(s), for example, low linoleic oils, linolenic oils, low palmitic oils, low stearic oils or oils low in a combination thereof.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: May 19, 2015
    Assignee: DSM IP ASSETS, B.V.
    Inventors: David Lam, David Weiner, Tim S. Hitchman, Nelson R. Barton, Jonathan D. Lyon
  • Patent number: 9017990
    Abstract: The invention provides the invention provides compositions and methods for the enzymatic treatment (“bleaching” or “de-colorizing”) of chlorophyll-comprising compositions, e.g., algae preparations, chlorophyll-containing or chlorophyll-contaminated feeds, foods or oils, for example, vegetable oils, including oils processed from oilseeds, such as canola (rapeseed) oil or soybean oil, or oil fruits, such as palm oil. In one aspect, the invention provides methods using a chlorophyllase enzyme for the enzymatic hydrolysis of chlorophyll in an algae, an animal (e.g., a fish) or plant preparation, a food or an oil. In one aspect, the chlorophyllase is immobilized onto a silica. The invention also provides compositions of manufacture and detergents.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: April 28, 2015
    Assignee: DSM IP Assets B.V.
    Inventors: David Lam, David Weiner, Timothy Hitchman, Nelson Barton, Mark Burk
  • Patent number: D784611
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: April 18, 2017
    Inventors: Ryan Eng, David Lam, Eric Wong
  • Patent number: D814105
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: March 27, 2018
    Assignee: NGEN SMOKE LLC
    Inventors: Ryan Eng, Eric Wong, David Lam
  • Patent number: RE47210
    Abstract: A collapsible crate for transporting goods, the crate having an upstanding wall, at least a portion of which is movable, locating feature and releasable locking feature for releasably securing the movable wall portion relative to the crate, wherein the locating feature has a projection receivable within a recess or aperture to align, in use, the movable wall portion relative to the crate such that the movable wall portion is releasably securable by the locking feature.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: January 22, 2019
    Assignee: Goodpack IBC (Singapore) Pte. Ltd.
    Inventor: David Lam