Patents by Inventor Stuart Johnston

Stuart Johnston 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: 12110743
    Abstract: During extension, the reamer block of an expandable reamer pushes on an upper plate. Extension is limited by contact with a spring retainer. To adjust the maximum extension of the expandable reamer, a spacer is placed between the expandable block and the spring retainer. The spacer reduces the amount of longitudinal travel of the expandable reamer, thereby reducing the extension of the expandable reamer.
    Type: Grant
    Filed: January 5, 2024
    Date of Patent: October 8, 2024
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Stuart Johnston
  • Publication number: 20240141732
    Abstract: During extension, the reamer block of an expandable reamer pushes on an upper plate. Extension is limited by contact with a spring retainer. To adjust the maximum extension of the expandable reamer, a spacer is placed between the expandable block and the spring retainer. The spacer reduces the amount of longitudinal travel of the expandable reamer, thereby reducing the extension of the expandable reamer.
    Type: Application
    Filed: January 5, 2024
    Publication date: May 2, 2024
    Inventor: Stuart Johnston
  • Patent number: 11913285
    Abstract: During extension, the reamer block of an expandable reamer pushes on an upper plate. Extension is limited by contact with a spring retainer. To adjust the maximum extension of the expandable reamer, a spacer is placed between the expandable block and the spring retainer. The spacer reduces the amount of longitudinal travel of the expandable reamer, thereby reducing the extension of the expandable reamer.
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: February 27, 2024
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Stuart Johnston
  • Publication number: 20230039209
    Abstract: During extension, the reamer block of an expandable reamer pushes on an upper plate. Extension is limited by contact with a spring retainer. To adjust the maximum extension of the expandable reamer, a spacer is placed between the expandable block and the spring retainer. The spacer reduces the amount of longitudinal travel of the expandable reamer, thereby reducing the extension of the expandable reamer.
    Type: Application
    Filed: August 4, 2022
    Publication date: February 9, 2023
    Inventor: Stuart Johnston
  • Patent number: 8054847
    Abstract: Buffer management in a network device. A new data packet is received at a packet buffer queue of the network switch, wherein the new data packet is a portion of a burst block. If the packet buffer queue is full, a data packet from within the packet buffer queue that is not a last sequential data packet of a burst block is dropped.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: November 8, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alan R. Albrecht, Stuart Johnston, Bruce E. LaVigne, Jonathan M. Watts
  • Publication number: 20080101226
    Abstract: Buffer management in a network device. A new data packet is received at a packet buffer queue of the network switch, wherein the new data packet is a portion of a burst block. If the packet buffer queue is full, a data packet from within the packet buffer queue that is not a last sequential data packet of a burst block is dropped.
    Type: Application
    Filed: October 31, 2006
    Publication date: May 1, 2008
    Inventors: Alan R. Albrecht, Stuart Johnston, Bruce E. LaVigne, Jonathan M. Watts
  • Publication number: 20060195938
    Abstract: The instant invention provides nucleic acid molecules encoding insect acetyl CoA carboxylase, as well as acetyl CoA carboxylase encoded thereby. The invention further provides methods of identifying agents that modulate a level of acetyl CoA carboxylase mRNA, polypeptide, or enzyme activity. Such agents are candidate insecticidal compounds.
    Type: Application
    Filed: June 13, 2005
    Publication date: August 31, 2006
    Inventors: Eva-Maria Franken, Gregory Weddell, Stuart Johnston, Lijuan Zhou, Dago Dimster-Denk, Allen Ebens
  • Patent number: 6913899
    Abstract: The instant invention provides nucleic acid molecules encoding insect ethanolamine kinase, as well as ethanolamine kinase encoded thereby. The invention further provides methods of identifying agents that modulate a level of ethanolamine kinase mRNA, polypeptide, or enzyme activity. Such agents are candidate insecticidal compounds.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: July 5, 2005
    Assignee: Genoptera, LLC
    Inventors: Allen J. Ebens, Jr., Stuart Johnston, Jean-Claude Breach
  • Publication number: 20030049711
    Abstract: The instant invention provides nucleic acid molecules encoding insect 26/29 cysteine protease, as well as 26/29 cysteine protease encoded thereby. The invention further provides methods of identifying agents that modulate a level of 26/29 cysteine protease mRNA, polypeptide, or enzyme activity. Such agents are candidate insecticidal compounds.
    Type: Application
    Filed: June 26, 2002
    Publication date: March 13, 2003
    Inventors: Allen J. Ebens, Thomas J. Stout, Stuart Johnston, Dat Nguyen
  • Publication number: 20030027191
    Abstract: The instant invention provides nucleic acid molecules encoding insect ethanolamine kinase, as well as ethanolamine kinase encoded thereby. The invention further provides methods of identifying agents that modulate a level of ethanolamine kinase mRNA, polypeptide, or enzyme activity. Such agents are candidate insecticidal compounds.
    Type: Application
    Filed: July 11, 2002
    Publication date: February 6, 2003
    Inventors: Allen J. Ebens, Stuart Johnston, Jean-Claude Breach
  • Publication number: 20030013177
    Abstract: The invention provides polynucleotides encoding insect glutaminyl cyclase, as well as polypeptides encoded thereby. The invention further provides host cells comprising expression vectors comprising polynucleotides of the invention. Isolated polypeptides and host cells of the invention are useful in methods of screening for agents that reduce glutaminyl cyclase activity. Such agents are useful as pesticides.
    Type: Application
    Filed: May 21, 2002
    Publication date: January 16, 2003
    Inventors: Allen J. Ebens, Jean-Claude R. Breach, Stuart Johnston, Julie B. Mazzotta
  • Patent number: 5898931
    Abstract: In a mobile communications system each radio unit (14, 16) is associated with a respective base station (12) as its `home` base station; any radio unit can communicate with any base station in whose service area it is located. Each base station has a radio interface (20) for communication with radio units, a telephone interface (24) for connection to a telephone line, for example via a PABX (44), and a LAN interface (28) for connection to a local area network (40) to which all the base stations are coupled. Voice communications for a handset are always routed through the home base station for that handset, e.g. to another handset or to the PABX, irrespective of the identity of the base station in whose service area the handset is currently located.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: April 27, 1999
    Assignee: Hewlett-Packard Company
    Inventors: Colin I'Anson, Stuart Johnston
  • Patent number: 5787360
    Abstract: In a mobile communications system each radio unit (14,16) is associated with a respective base station (12) as its `home` base station; any radio unit can communicate with any base station in whose service area it is located. Each base station has a radio interface (20) for communication with radio units, a telephone interface (24) for connection to a telephone line, for example via a PABX (44), and a LAN interface (28) for connection to a local area network (40) to which all the base stations are coupled. Voice communications for a handset are always routed through the home base station for that handset, e.g. to another handset or to the PABX, irrespective of the identity of the base station in whose service area the handset is currently located.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: July 28, 1998
    Assignee: Hewlett-Packard Company
    Inventors: Stuart Johnston, Roberto Morassi, Isabelle Moreau