Patents by Inventor Douglas A. MacKenzie

Douglas A. MacKenzie 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: 20240101193
    Abstract: A vehicle control method and apparatus to reverse a trailer are provided. The method includes storing a moving path of a trailer connected to the vehicle by a hitch, measuring a location of the trailer or a heading of the trailer when the trailer is reversed upon activation of a reversing mode, comparing the location of the trailer or the heading of the trailer in the stored moving path of the trailer with the measured location of the trailer or the measured heading of the trailer, and minimizing a difference between the location of the trailer in the stored moving path of the trailer and the measured location of the trailer, or a difference between the heading of the trailer in the stored moving path of the trailer and the measured heading of the trailer, and t performing an operation of reversing the trailer.
    Type: Application
    Filed: September 22, 2022
    Publication date: March 28, 2024
    Applicant: HYUNDAI MOBIS CO., LTD.
    Inventors: Douglas MACKENZIE, Venkatesh DUDIKI
  • Publication number: 20240034304
    Abstract: A parking method includes searching a moving path of a trailer, giving a movement instruction to a vehicle, based on the moving path of the trailer, measuring one or both of a current location of the trailer and a current direction of the trailer according to the movement instruction, comparing one or both of a desired location of the trailer and a desired direction of the trailer in the moving path of the trailer with one or both of the current location of the trailer and the current direction of the trailer; and moving the trailer to a parking space, based on a result of the comparing.
    Type: Application
    Filed: August 1, 2022
    Publication date: February 1, 2024
    Applicant: HYUNDAI MOBIS CO., LTD.
    Inventors: DOUGLAS MACKENZIE, VENKATESH DUDIKI, ZHE LI
  • Publication number: 20220348968
    Abstract: A process for producing a fuel from lignocellulosic biomass is disclosed. The process includes obtaining a feedstock comprising lignocellulosic biomass, pretreating a slurry containing the lignocellulosic feedstock, sulfur dioxide, and optionally a bisulfite salt, at temperatures between 110° C. and 160° C. for at least 30 minutes. The pretreatment includes subjecting the slurry to a pH adjustment, which includes adding alkali to the slurry, removing lignosulfonic acid from the slurry, or a combination thereof.
    Type: Application
    Filed: April 2, 2020
    Publication date: November 3, 2022
    Inventors: Daniel G. MACDONALD, Jeffrey S. TOLAN, Douglas A. MACKENZIE
  • Patent number: 11299850
    Abstract: A process for converting lignocellulosic biomass to glucose or ethanol includes subjecting the lignocellulosic biomass to a SO2 pretreatment within the temperature range 110° C.-150° C. Good glucose yields have been achieved when the SO2 pretreatment is conducted for more than 90 minutes and when the total amount of SO2 available is greater than 20 wt % based on dry weight of lignocellulosic biomass.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: April 12, 2022
    Assignee: Iogen Corporation
    Inventors: Brian Foody, Jeffrey S. Tolan, Daniel G. MacDonald, Kristin Martens, Natacha Leduc, Douglas A. MacKenzie
  • Patent number: 11238739
    Abstract: An apparatus configured to prevent at least one vulnerable road user (VRU) from having an accident including a driver monitoring unit configured to utilize at least one sensor provided in a vehicle to detect a gaze area corresponding to a gaze direction of a driver of the vehicle, a VRU monitoring unit configured to calculate position information including current position and predicted motion information of the VRU existing in a peripheral area of the vehicle, the VRU is detected by using the at least one sensor, a detection unit configured to detect whether the driver is aware of the VRU and whether the VRU is aware of the driver based on a gaze area of the driver and the position information of the VRU, and a warning processing unit configured to output warning information on a dangerous situation to some or all of the driver and the VRU in response to a detection result of the detection unit.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: February 1, 2022
    Assignee: Hyundai Mobis Co., Ltd.
    Inventor: Douglas Mackenzie
  • Publication number: 20210350703
    Abstract: An apparatus configured to prevent at least one vulnerable road user (VRU) from having an accident including a driver monitoring unit configured to utilize at least one sensor provided in a vehicle to detect a gaze area corresponding to a gaze direction of a driver of the vehicle, a VRU monitoring unit configured to calculate position information including current position and predicted motion information of the VRU existing in a peripheral area of the vehicle, the VRU is detected by using the at least one sensor, a detection unit configured to detect whether the driver is aware of the VRU and whether the VRU is aware of the driver based on a gaze area of the driver and the position information of the VRU, and a warning processing unit configured to output warning information on a dangerous situation to some or all of the driver and the VRU in response to a detection result of the detection unit.
    Type: Application
    Filed: May 11, 2020
    Publication date: November 11, 2021
    Inventor: Douglas MACKENZIE
  • Publication number: 20200354891
    Abstract: A process for converting lignocellulosic biomass to glucose or ethanol includes subjecting the lignocellulosic biomass to a SO2 pretreatment within the temperature range 110° C.-150° C. Good glucose yields have been achieved when the SO2 pretreatment is conducted for more than 90 minutes and when the total amount of SO2 available is greater than 20 wt % based on dry weight of lignocellulosic biomass.
    Type: Application
    Filed: November 9, 2018
    Publication date: November 12, 2020
    Inventors: Brian Foody, Jeffrey S. Tolan, Daniel G. MacDonald, Kristin Martens, Natacha Leduc, Douglas A. MacKenzie
  • Patent number: 8383845
    Abstract: A process for obtaining lipids containing highly unsaturated fatty acids from plant or animal material, including contacting the material with liquid dimethyl ether to give a dimethyl ether solution containing lipids and a residue of plant or animal material, separating the solution from the residue of plant or animal material, and recovering lipids from the solution.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: February 26, 2013
    Assignee: Industrial Research Limited
    Inventors: Owen John Catchpole, John Bertram Grey, Andrew Douglas MacKenzie, Stephen John Tallon
  • Patent number: 8161712
    Abstract: A flexible wrap of rotatably interlocking fluted strips is provided. The fluted strips may have similarly shaped cross-sectional areas and be rotatably interconnected with one another such that the flexible wrap may be wrapped around an object. One end of a fluted strip may have a socket means for rotatably interlocking with an adjacent fluted strip. The socket means may have a circular inner diameter and two curved arms with an opening between their ends. The opposite end of the fluted strip may have a ball means for rotatably interlocking with another adjacent fluted strip. The ball means may have a circular outer diameter sized to slide into the circular inner diameter of the socket means of an adjacent fluted strip, and an arm sized to slide between the opening of the curved arms, during assembly. One fluted strip may be designed to join in the middle to facilitate wrapping.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: April 24, 2012
    Inventor: Douglas A. Mackenzie
  • Patent number: 7927394
    Abstract: Collection apparatus are installed in a horizontal separator vessel to aid conventional coalescing media to remove mist and droplets from a gas flow, typically downstream from a compressor. The collection apparatus have filaments which act to wick the coalesced droplets either from the conventional coalescing media or from the sides of the vessel toward an annular channel which collects the droplets and assists in delivering the droplets, by gravity, to the bottom of horizontal vessel where they are carried to a collection area. Use of the collection apparatus permits a reduction in the size of the separator vessel and further permits vapor load factors of up to about 10 times that in a conventionally designed separator vessel.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: April 19, 2011
    Assignee: Gas Liquids Engineering Ltd.
    Inventors: Douglas MacKenzie, Arnold Toews
  • Publication number: 20100236182
    Abstract: A flexible wrap of rotatably interlocking fluted strips is provided. The fluted strips may have similarly shaped cross-sectional areas and be rotatably interconnected with one another such that the flexible wrap may be wrapped around an object. One end of a fluted strip may have a socket means for rotatably interlocking with an adjacent fluted strip. The socket means may have a circular inner diameter and two curved arms with an opening between their ends. The opposite end of the fluted strip may have a ball means for rotatably interlocking with another adjacent fluted strip. The ball means may have a circular outer diameter sized to slide into the circular inner diameter of the socket means of an adjacent fluted strip, and an arm sized to slide between the opening of the curved arms, during assembly. One fluted strip may be designed to join in the middle to facilitate wrapping.
    Type: Application
    Filed: March 17, 2010
    Publication date: September 23, 2010
    Inventor: Douglas A. Mackenzie
  • Publication number: 20100160659
    Abstract: A process for obtaining lipids containing highly unsaturated fatty acids from plant or animal material, including contacting the material with liquid dimethyl ether to give a dimethyl ether solution containing lipids and a residue of plant or animal material, separating the solution from the residue of plant or animal material, and recovering lipids from the solution.
    Type: Application
    Filed: May 24, 2007
    Publication date: June 24, 2010
    Inventors: Owen John Catchpole, John Bertram Grey, Andrew Douglas MacKenzie, Stephen John Tallon
  • Patent number: 7709668
    Abstract: A process for extracting a wide range of lipophilic compounds from urea-containing solutions is described. The process utilises a near-critical fluid as the extraction solvent. The process is particularly applicable to the extraction of polyunsaturated fatty acids from the filtrate obtained upon urea fractionation, as employed in the processing of fish and other oils. In contrast to known processes, the lipophilic compounds may be extracted without the use of non-food grade solvents, and are suitable for pharmaceutical and cosmetic use.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: May 4, 2010
    Assignee: Industrial Research Limited
    Inventors: Owen John Catchpole, Andrew Douglas Mackenzie, John Bertram Grey
  • Publication number: 20070277485
    Abstract: Collection apparatus are installed in a horizontal separator vessel to aid conventional coalescing media to remove mist and droplets from a gas flow, typically downstream from a compressor. The collection apparatus have filaments which act to wick the coalesced droplets either from the conventional coalescing media or from the sides of the vessel toward an annular channel which collects the droplets and assists in delivering the droplets, by gravity, to the bottom of horizontal vessel where they are carried to a collection area. Use of the collection apparatus permits a reduction in the size of the separator vessel and further permits vapor load factors of up to about 10 times that in a conventionally designed separator vessel.
    Type: Application
    Filed: May 31, 2006
    Publication date: December 6, 2007
    Applicant: GAS LIQUIDS ENGINEERING LTD.
    Inventors: Douglas MacKenzie, Arnold Toews
  • Publication number: 20070045012
    Abstract: A surface vehicle capable of overcoming obstacles is disclosed in which the vehicle accelerates vertically while having a horizontal velocity. The vehicle has a frame and at least three wheels attached to the frame to which a horizontal propulsion system is coupled. Further, a vertical propulsion system is coupled to the frame and the wheels. The vertical propulsion system is capable of providing a force to such wheels normal to the surface so that the vehicle separates from the surface. The vehicle has an electronic control unit coupled to the vertical propulsion system to automatically control its operation.
    Type: Application
    Filed: August 29, 2005
    Publication date: March 1, 2007
    Inventors: Wayne Brehob, Douglas MacKenzie
  • Patent number: 7047408
    Abstract: Secure communication protocols are disclosed in which two parties generate a shared secret which may be used as a secure session key for communication between the parties. The protocols are based on Diffie-Hellman type key exchange in which a Diffie-Hellman value is combined with a function of at least a password using the group operation such that the Diffie-Hellman value may be extracted by the other party using the inverse group operation and knowledge of the password. In one embodiment, each of the parties explicitly authenticates the other party, while in another embodiment, the parties utilize implicit authentication relying on the generation of an appropriate secret session key to provide the implicit authentication. Typically, the parties will be a client computer and a server computer.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: May 16, 2006
    Assignee: Lucent Technologies Inc.
    Inventors: Victor Vladimir Boyko, Eric Grosse, Philip Douglas MacKenzie, Sarvar Patel
  • Patent number: 6757825
    Abstract: A password-only mutual network authentication protocol and key exchange protocol using a public key encryption scheme in which a server generates a public key/secret key pair and transmits the public key to a client. The client determines whether the public key was chosen in an acceptable manner, and if so, continues with the protocol. Otherwise, the client rejects authentication. If the protocol is continued, in one embodiment the client generates a parameterp as a function of the public key and a password (or, in an alternate embodiment, as a function of the public key and a function of a password). If the public key space mapping function FPK applied to p, FPK(p), is an element of the public key message space, then the protocol continues. If FPK(p) is not an element of the public key message space, then the client determines to reject authentication, but continues with the protocol so that the server does not gain any information about the password.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: June 29, 2004
    Assignee: Lucent Technologies Inc.
    Inventors: Philip Douglas MacKenzie, Ram Swaminathan
  • Publication number: 20040009233
    Abstract: An extract obtained from shark meat, which extract is capable of inhibiting angiogenesis in an animal. A process for obtaining the extract by contacting shark meat with a solvent, separating the resulting solution from the meat, then removing the solvent to give an extract which is an inhibitor of angiogenesis. The use of the extract for treatment of diseases associated with angiogenesis including cancer, retinopathy, inflammation, and arthritis.
    Type: Application
    Filed: July 25, 2003
    Publication date: January 15, 2004
    Inventors: Paul Frank Davis, Andrew Douglas Mackenzie
  • Patent number: 6520808
    Abstract: A connector with at least two pairs of contacts is provided, wherein crosstalk between first and third contacts, which are separated by a second contact, is reduced by a lateral extension of the third contact. The lateral extension includes a suppressing section extending parallel and adjacent to the first contact, and a pair of connecting sections that each connects one end of the suppressing section to the rest of the third contact. This allows at least some current passing along the third contact, to pass through the suppressing section and induce anti-crosstalk currents in the first contact to counter crosstalk. At least one connecting section has a lengthening portion that increases its length to create a phase shift. The suppressing section has a minimal width compared to its height. For a stamped sheet metal contact, the width is less than twice the height to reduce capacitive coupling while maintaining inductive coupling.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: February 18, 2003
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventors: Harry Forbes, David Ralph Pinney, William Douglas Mackenzie
  • Patent number: D643132
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: August 9, 2011
    Inventor: Douglas A. MacKenzie