Patents by Inventor David Charles Alexander

David Charles Alexander 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: 11429739
    Abstract: A method and system that enables a data owner to write data in an encrypted manner to an immutable ledger, and yet still be able to grant read access to specific data elements, as they were written at particular moments in time, to a requesting party. Examples therefore provide a process for encryption of data onto an immutable ledger in a time indexed manner, together with a process by which a third party can request access to the data stored in the immutable ledger from the data owner, and the data owner can provide them with certain decryption keys that allow the third party to read the data directly from the immutable ledger, again based on time-indexed queries. The data the third party can read is restricted to specific elements only of the data written, and further restricted to within a time range or to a specific point in time.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: August 30, 2022
    Assignee: Ordnance Survey Limited
    Inventor: David Charles Alexander Stow
  • Publication number: 20220266956
    Abstract: This invention relates to a parachute sea anchor system deployable from a payload tube. There is provided a parachute sea anchor system suitable for launch from a vessel comprising at least one payload tube, said payload tube, comprising a payload canister, which comprises a parachute sea anchor, wherein said parachute sea anchor comprises a buoy tethered thereto, wherein said payload canister is attached to said vessel.
    Type: Application
    Filed: November 2, 2020
    Publication date: August 25, 2022
    Applicant: BAE SYSTEMS plc
    Inventors: Simon Phillip Newby, Jason Michael Dobb, David Charles Alexander Ritchie, Adam Benedict Bruce Cowley
  • Publication number: 20200372168
    Abstract: A method and system that enables a data owner to write data in an encrypted manner to an immutable ledger, and yet still be able to grant read access to specific data elements, as they were written at particular moments in time, to a requesting party. Examples therefore provide a process for encryption of data onto an immutable ledger in a time indexed manner, together with a process by which a third party can request access to the data stored in the immutable ledger from the data owner, and the data owner can provide them with certain decryption keys that allow the third party to read the data directly from the immutable ledger, again based on time-indexed queries. The data the third party can read is restricted to specific elements only of the data written, and further restricted to within a time range or to a specific point in time.
    Type: Application
    Filed: May 19, 2020
    Publication date: November 26, 2020
    Inventor: David Charles Alexander Stow
  • Patent number: 10341613
    Abstract: A method for use in providing content includes hosting a network site on a computer network, displaying on the network site links to one or more videos, and displaying on the network site at least an on-demand preview of a first video in response to a corresponding one of the links being selected. A storage medium stores a computer program for use on a client computer. Several other methods, systems and programs are also disclosed.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: July 2, 2019
    Assignee: Crackle, Inc.
    Inventors: Aviv Eyal, Piers Haken, David Charles Alexander Hodgson, Steven Hazel
  • Publication number: 20190037176
    Abstract: A method for use in providing content includes hosting a network site on a computer network, displaying on the network site links to one or more videos, and displaying on the network site at least an on-demand preview of a first video in response to a corresponding one of the links being selected. A storage medium stores a computer program for use on a client computer. Several other methods, systems and programs are also disclosed.
    Type: Application
    Filed: September 21, 2018
    Publication date: January 31, 2019
    Inventors: Aviv Eyal, Piers Haken, David Charles Alexander Hodgson, Steven Hazel
  • Patent number: 10091462
    Abstract: A method for use in providing content includes hosting a network site on a computer network, displaying on the network site links to one or more videos, and displaying on the network site at least an on-demand preview of a first video in response to a corresponding one of the links being selected. A storage medium stores a computer program for use on a client computer. Several other methods, systems and programs are also disclosed.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: October 2, 2018
    Assignee: Crackle, Inc.
    Inventors: Aviv Eyal, Piers Haken, David Charles Alexander Hodgson, Steven Hazel
  • Publication number: 20170339374
    Abstract: A method for use in providing content includes hosting a network site on a computer network, displaying on the network site links to one or more videos, and displaying on the network site at least an on-demand preview of a first video in response to a corresponding one of the links being selected. A storage medium stores a computer program for use on a client computer. Several other methods, systems and programs are also disclosed.
    Type: Application
    Filed: August 7, 2017
    Publication date: November 23, 2017
    Inventors: Aviv Eyal, Piers Haken, David Charles Alexander Hodgson, Steven Hazel
  • Patent number: 9729829
    Abstract: A method for use in providing content includes hosting a network site on a computer network, displaying on the network site links to one or more videos, and displaying on the network site at least an on-demand preview of a first video in response to a corresponding one of the links being selected. A storage medium stores a computer program for use on a client computer. Several other methods, systems and programs are also disclosed.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: August 8, 2017
    Assignee: Crackle, Inc.
    Inventors: Aviv Eyal, Piers Haken, David Charles Alexander Hodgson, Steven Hazel
  • Patent number: 8881011
    Abstract: A method for use in providing content includes hosting a network site on a computer network, displaying on the network site links to one or more videos, and displaying on the network site at least an on-demand preview of a first video in response to a corresponding one of the links being selected. A storage medium stores a computer program for use on a client computer. Several other methods, systems and programs are also disclosed.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: November 4, 2014
    Assignee: Crackle, Inc.
    Inventors: Aviv Eyal, Piers Haken, David Charles Alexander Hodgson, Steven Hazel
  • Patent number: 8727127
    Abstract: A screening apparatus includes beams and screen panels forming a broad screening surface. Each panel is mounted to a pair of beams along opposite side edges to bridge between two adjacent beams. The panels are mounted to an upwardly facing edge of the beams by elongate fixing members extending in the longitudinal direction of the beams. The fixing members engage opposite side edges of the panels and include a pair of projections that extend into openings provided in the edge of the beams. Each projection is engaged by a locking clip to prevent release from the openings. The openings into which the projections extend are of greater diameter than the outside diameter of the projections providing a loose fit within the openings, to allow movement of the fixing rails and the screen panels before the projections are engaged by a locking clip.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: May 20, 2014
    Assignee: Lettela Pty Limited
    Inventors: Raymond Maxwell Woodgate, Marc Raymond Woodgate, David Charles Alexander James Waller
  • Publication number: 20130037459
    Abstract: A screening apparatus includes beams and screen panels forming a broad screening surface. Each panel is mounted to a pair of beams along opposite side edges to bridge between two adjacent beams. The panels are mounted to an upwardly facing edge of the beams by elongate fixing members extending in the longitudinal direction of the beams. The fixing members engage opposite side edges of the panels and include a pair of projections that extend into openings provided in the edge of the beams. Each projection is engaged by a locking clip to prevent release from the openings. The openings into which the projections extend are of greater diameter than the outside diameter of the projections providing a loose fit within the openings, to allow movement of the fixing rails and the screen panels before the projections are engaged by a locking clip.
    Type: Application
    Filed: August 10, 2012
    Publication date: February 14, 2013
    Applicant: Lettela Pty Limited
    Inventors: Raymond Maxwell Woodgate, Marc Raymond Woodgate, David Charles Alexander James Waller
  • Patent number: 8010657
    Abstract: Systems and methods are provided to track viral marketing. The resulting user interfaces can include a map that tracks propagation via a node tree or a geographic map that shows where media was viewed. The information may also be displayed as a cumulative or absolute tracking graph, which is based on various parameters, such as number of views, number of transmissions, rewards earned, etc. The systems and methods can track viral propagation through, e.g., email, social networking service or site messages or postings, and instant messages. Data used by the invention include URLs as received from a media transmission page form, the URLs pertaining to both the propagator and the recipient, time stamps at which the media was propagated and viewed, and so on.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: August 30, 2011
    Assignee: Crackle, Inc.
    Inventors: Richard Hall, David Charles Alexander Hodgson
  • Publication number: 20080256233
    Abstract: Systems and methods are provided to track viral marketing. The resulting user interfaces can include a map that tracks propagation via a node tree or a geographic map that shows where media was viewed. The information may also be displayed as a cumulative or absolute tracking graph, which is based on various parameters, such as number of views, number of transmissions, rewards earned, etc. The systems and methods can track viral propagation through, e.g., email, social networking service or site messages or postings, and instant messages. Data used by the invention include URLs as received from a media transmission page form, the URLs pertaining to both the propagator and the recipient, time stamps at which the media was propagated and viewed, and so on.
    Type: Application
    Filed: November 27, 2007
    Publication date: October 16, 2008
    Inventors: Richard Hall, David Charles Alexander Hodgson
  • Publication number: 20080184119
    Abstract: A method for use in providing content includes hosting a network site on a computer network, displaying on the network site links to one or more videos, and displaying on the network site at least an on-demand preview of a first video in response to a corresponding one of the links being selected. A storage medium stores a computer program for use on a client computer. Several other methods, systems and programs are also disclosed.
    Type: Application
    Filed: December 4, 2007
    Publication date: July 31, 2008
    Applicant: Crackle, Inc.
    Inventors: Aviv Eyal, Piers Haken, David Charles Alexander Hodgson, Steven Hazel
  • Publication number: 20080178230
    Abstract: A method for use in providing content includes hosting a network site on a computer network, displaying on the network site links to one or more videos, and displaying on the network site at least an on-demand preview of a first video in response to a corresponding one of the links being selected. A storage medium stores a computer program for use on a client computer. Several other methods, systems and programs are also disclosed.
    Type: Application
    Filed: December 4, 2007
    Publication date: July 24, 2008
    Applicant: Crackle, Inc.
    Inventors: Aviv EYAL, Piers Haken, David Charles Alexander Hodgson, Steven Hazel
  • Publication number: 20080178242
    Abstract: A method for use in providing content includes hosting a network site on a computer network, displaying on the network site links to one or more videos, and displaying on the network site at least an on-demand preview of a first video in response to a corresponding one of the links being selected. A storage medium stores a computer program for use on a client computer. Several other methods, systems and programs are also disclosed.
    Type: Application
    Filed: December 4, 2007
    Publication date: July 24, 2008
    Applicant: Crackle, Inc.
    Inventors: Aviv EYAL, Piers HAKEN, David Charles Alexander HODGSON, Steven HAZEL
  • Publication number: 20080178234
    Abstract: A method for use in providing content includes hosting a network site on a computer network, displaying on the network site links to one or more videos, and displaying on the network site at least an on-demand preview of a first video in response to a corresponding one of the links being selected. A storage medium stores a computer program for use on a client computer. Several other methods, systems and programs are also disclosed.
    Type: Application
    Filed: December 4, 2007
    Publication date: July 24, 2008
    Applicant: Crackle, Inc.
    Inventors: Aviv Eyal, Piers Haken, David Charles Alexander Hodgson, Steven Hazel
  • Patent number: 5709596
    Abstract: An ergonomically profiled hand grip for a hand-held tool. The hand grip has a contoured top surface and a pommel attached thereto. The centerline of the pommel is offset from the axis of the contoured top surface at an angle of approximately 45.degree.. The pommel is contoured to comfortably fit between the thumb and index finger of the user while the fingers extend over the top surface. Preferably, the pommel is rotatably attached to the top surface making the hand grip equally accessible and comfortable to right and left hand users and for users with large or small hands.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: January 20, 1998
    Assignee: Ryobi North America
    Inventors: David Charles Alexander, Robert Bruce Rummer
  • Patent number: 4021501
    Abstract: In the thermal cracking of a hydrocarbon feedstock, the quenching of the gases leaving the cracking zone is deliberately deferred for a very short time to permit continued endothermic reaction and thereby increase the ethylene yield.
    Type: Grant
    Filed: August 12, 1975
    Date of Patent: May 3, 1977
    Assignee: Imperial Chemical Industries Limited
    Inventors: Peter Dyer, David Charles Alexander Waterman