Patents by Inventor Graham Barrett

Graham Barrett 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: 20230355377
    Abstract: An intraocular lens has a monofocal lens body that defines a focal length and is configured to add more higher order aberration (HOA) to an eye than a spherical IOL with the same focal length. The lens body defines an optical center, an outer edge, a first region that extends from the optical center to a radius between the outer edge and the optical center, and a second region located radially outward of the first region. The second region is configured to reduce the longitudinal HOA that would otherwise occur in low light conditions. The lens body may be configured to create a higher order aberration to normalized radial distance ratio (HOA-NRD ratio) profile that increases in slope as NRD increases within at least a portion of the first region and does not increase in slope as NRD increases within at least a portion of the second region. The HOA may be a spherical aberration, trefoil or coma.
    Type: Application
    Filed: July 17, 2023
    Publication date: November 9, 2023
    Inventors: Graham Barrett, Tjundewo Lawu
  • Patent number: 11744698
    Abstract: A method improves depth of focus in a first eye only by adding a higher order aberration (HOA) to the first eye by adding a monofocal optical device to the first eye. The method may also correct a spherical aberration in a second eye by inserting a monofocal aspheric IOL. The HOA added to the first eye may be selected from the group consisting of spherical, trefoil and coma. Additionally, the monofocal optical device inserted into the first eye may comprise a monofocal aspheric IOL that adds spherical aberration to the first eye. The optical device inserted into the first eye may comprise a 20 D monofocal aspheric IOL that adds 0.4 ?m of spherical aberration to the first eye at 6 mm entrance pupil and adds 0.1 ?m of spherical aberration to the first eye at 4 mm entrance pupil.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: September 5, 2023
    Assignee: Rayner Intraocular Lenses Limited
    Inventors: Graham Barrett, Tjundewo Lawu
  • Patent number: 11700351
    Abstract: Among other things, a first video is captured of at least the eyes of a first person who is looking along a video capture axis. A second video of at least the eyes of a second person is presented, along a display axis. The video capture axis and the display axis are aligned along a common axis so that the first person can view the second video of at least the eyes of the second person along the common axis when the first video of the eyes of the first person is being captured along the common axis. Instructions are executed to maintain an eye contact video interaction session between the first person and the second person using the captured video and the presented video.
    Type: Grant
    Filed: August 9, 2021
    Date of Patent: July 11, 2023
    Assignee: See I2I Pty Ltd
    Inventors: Graham Barrett, Michael Winlo
  • Publication number: 20220210368
    Abstract: Among other things, a first video is captured of at least the eyes of a first person who is looking along a video capture axis. A second video of at least the eyes of a second person is presented, along a display axis. The video capture axis and the display axis are aligned along a common axis so that the first person can view the second video of at least the eyes of the second person along the common axis when the first video of the eyes of the first person is being captured along the common axis. Instructions are executed to maintain an eye contact video interaction session between the first person and the second person using the captured video and the presented video.
    Type: Application
    Filed: August 9, 2021
    Publication date: June 30, 2022
    Inventors: Graham Barrett, Michael Winlo
  • Publication number: 20210307318
    Abstract: A process for preparation of agrichemical granules comprising: addition of aqueous liquid to a rapidly mixing powder composition comprising a carrier including a hydratable calcium sulfate, to form a pliable moist mixture with rapid mixing wherein the aqueous liquid is added in an amount of at least 5 wt % water by weight of the moist mixture composition; and shaping the pliable moist mixture, preferably comprising extrusion or pelletisation, to form granules.
    Type: Application
    Filed: August 20, 2019
    Publication date: October 7, 2021
    Inventor: Graham BARRETT
  • Patent number: 11089262
    Abstract: Among other things, a first video is captured of at least the eyes of a first person who is looking along a video capture axis. A second video of at least the eyes of a second person is presented, along a display axis. The video capture axis and the display axis are aligned along a common axis so that the first person can view the second video of at least the eyes of the second person along the common axis when the first video of the eyes of the first person is being captured along the common axis. Instructions are executed to maintain an eye contact video interaction session between the first person and the second person using the captured video and the presented video.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: August 10, 2021
    Assignee: See I2I Pty Ltd
    Inventors: Graham Barrett, Michael Winlo
  • Publication number: 20200276012
    Abstract: A method improves depth of focus in a first eye only by adding a higher order aberration (HOA) to the first eye by adding a monofocal optical device to the first eye. The method may also correct a spherical aberration in a second eye by inserting a monofocal aspheric IOL. The HOA added to the first eye may be selected from the group consisting of spherical, trefoil and coma. Additionally, the monofocal optical device inserted into the first eye may comprise a monofocal aspheric IOL that adds spherical aberration to the first eye. The optical device inserted into the first eye may comprise a 20 D monofocal aspheric IOL that adds 0.4 ?m of spherical aberration to the first eye at 6 mm entrance pupil and adds 0.1 ?m of spherical aberration to the first eye at 4 mm entrance pupil.
    Type: Application
    Filed: May 20, 2020
    Publication date: September 3, 2020
    Inventors: Graham Barrett, Tjundewo Lawu
  • Patent number: 10702376
    Abstract: Methods and apparatus involving extended depth of focus IOLs.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: July 7, 2020
    Assignee: Rayner Intraocular Lenses Limited
    Inventors: Graham Barrett, Tjundewo Lawu
  • Patent number: 10226049
    Abstract: An insecticidal granular composition for broadcasting of the granular composition onto a body of water on which insects are to be controlled comprising: a granular carrier of size in range of from 1 to 4 mm; a composition absorbed into the granular carrier comprising a bacterially derived larvicidal active agent and a non-aqueous liquid having a density less than 1; wherein the insecticidal granular composition has an average individual granule density greater than 1 and is adapted to sink in the body of water.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: March 12, 2019
    Assignee: Granular Products Assets PTY LTD
    Inventors: Graham Barrett, Philip Pentland, Abhinetiri Kumari Maharaj
  • Patent number: 9901441
    Abstract: Methods and apparatus involving extended depth of focus IOLs.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: February 27, 2018
    Inventors: Graham Barrett, Tjundewo Lawu
  • Publication number: 20170112612
    Abstract: Methods and apparatus involving extended depth of focus IOLs.
    Type: Application
    Filed: December 29, 2016
    Publication date: April 27, 2017
    Inventor: Graham BARRETT
  • Patent number: 9567173
    Abstract: A sheet feeder comprises a feed deck for supporting a stack of sheets (65) to be fed. The feed deck may be formed by a bed of freely spinning rollers. A feed block (62) comprises a friction pad (66) that projects from the bottom of the feed block (62) towards a drive belt (42) to define a gate therebetween. The drive belt (42) frictionally engages the underside of a bottom sheet of the stack (65) and urges the sheet towards the gate. The feed block (62) comprises a front face (72) immediately upstream from the gate, which is inclined at a sharp angle to the feed direction. The friction pad (66) comprises a lower face that is substantially parallel to the feed direction and does not intersect the plane of the feed block front face (72).
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: February 14, 2017
    Assignee: CreaseStream LLP
    Inventors: Graham Michael Harris, Paul Graham Barrett
  • Publication number: 20160345584
    Abstract: An insecticidal granular composition for broadcasting of the granular composition onto a body of water on which insects are to be controlled comprising: a granular carrier of size in range of from 1 to 4 mm; a composition absorbed into the granular carrier comprising a bacterially derived larvicidal active agent and a non-aqueous liquid having a density less than 1; wherein the insecticidal granular composition has an average individual granule density greater than 1 and is adapted to sink in the body of water.
    Type: Application
    Filed: February 4, 2015
    Publication date: December 1, 2016
    Inventors: Graham BARRETT, Philip PENTLAND, Abhinetiri Kumari MAHARAJ
  • Publication number: 20150321865
    Abstract: A sheet feeder comprises a feed deck for supporting a stack of sheets (65) to be fed. The feed deck may be formed by a bed of freely spinning rollers. A feed block (62) comprises a friction pad (66) that projects from the bottom of the feed block (62) towards a drive belt (42) to define a gate therebetween. The drive belt (42) frictionally engages the underside of a bottom sheet of the stack (65) and urges the sheet towards the gate. The feed block (62) comprises a front face (72) immediately upstream from the gate, which is inclined at a sharp angle to the feed direction. The friction pad (66) comprises a lower face that is substantially parallel to the feed direction and does not intersect the plane of the feed block front face (72).
    Type: Application
    Filed: November 16, 2011
    Publication date: November 12, 2015
    Applicant: CreaseStream LLP
    Inventors: Graham Michael Harris, Paul Graham Barrett
  • Publication number: 20150035223
    Abstract: A sheet feeder comprises a feed deck for supporting a stack of sheets (65) to be fed. The feed deck may be formed by a bed of freely spinning rollers. A feed block (62) comprises a friction pad (66) that projects from the bottom of the feed block (62) towards a drive belt (42) to define a gate therebetween. The drive belt (42) frictionally engages the underside of a bottom sheet of the stack (65) and urges the sheet towards the gate. The feed block (62) comprises a front face (72) immediately upstream from the gate, which is inclined at a sharp angle to the feed direction. The friction pad (66) comprises a lower face that is substantially parallel to the feed direction and does not intersect the plane of the feed block front face (72).
    Type: Application
    Filed: November 16, 2011
    Publication date: February 5, 2015
    Applicant: CreaseStream LLP
    Inventors: Graham Michael Harris, Paul Graham Barrett
  • Publication number: 20140303725
    Abstract: Methods and apparatus involving extended depth of focus IOLs.
    Type: Application
    Filed: August 3, 2012
    Publication date: October 9, 2014
    Inventors: Graham Barrett, Tjundewo Lawu
  • Patent number: 7775960
    Abstract: A drum for a creasing device, a resilient creasing ring and method are provided. The drum includes first and second drum parts that cooperate with one another to define a circumferential channel of the drum a base and two side wall for receiving a resilient creasing ring. At least one of the side walls includes recess for receiving a portion of the resilient creasing ring such that the resilient creasing ring cannot be removed radially from the channel. The creasing ring may be continuous or a split ring. A method of mounting the creasing ring includes mounting the resilient creasing ring on a first drum part and axially sliding a second drum part into cooperation with the first drum part to mount the creasing ring within a channel formed therebetween.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: August 17, 2010
    Assignee: Tech-ni-Fold Ltd
    Inventors: Graham Harris, Paul Graham Barrett
  • Patent number: 7686754
    Abstract: A drum for a creasing device, a resilient creasing ring and method are provided. The drum includes first and second drum parts that cooperate with one another to define a circumferential channel of the drum a base and two side wall for receiving a resilient creasing ring. At least one of the side walls includes recess for receiving a portion of the resilient creasing ring such that the resilient creasing ring cannot be removed radially from the channel. The creasing ring may be continuous or a split ring. A method of mounting the creasing ring includes mounting the resilient creasing ring on a first drum part and axially sliding a second drum part into cooperation with the first drum part to mount the creasing ring within a channel formed therebetween.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: March 30, 2010
    Assignee: Tech-ni-Fold Ltd
    Inventors: Graham Harris, Paul Graham Barrett
  • Publication number: 20100035741
    Abstract: A drum for a creasing device, a resilient creasing ring and method are provided. The drum includes first and second drum parts that cooperate with one another to define a circumferential channel of the drum a base and two side wall for receiving a resilient creasing ring. At least one of the side walls includes recess for receiving a portion of the resilient creasing ring such that the resilient creasing ring cannot be removed radially from the channel. The creasing ring may be continuous or a split ring. A method of mounting the creasing ring includes mounting the resilient creasing ring on a first drum part and axially sliding a second drum part into cooperation with the first drum part to mount the creasing ring within a channel formed therebetween.
    Type: Application
    Filed: October 14, 2009
    Publication date: February 11, 2010
    Applicant: Tech-ni-Fold, Ltd.
    Inventors: Graham Harris, Paul Graham Barrett
  • Patent number: 7563220
    Abstract: A drum for a creasing device, a resilient creasing ring and method are provided. The drum includes first and second drum parts that cooperate with one another to define a circumferential channel of the drum a base and two side wall for receiving a resilient creasing ring. At least one of the side walls includes recess for receiving a portion of the resilient creasing ring such that the resilient creasing ring cannot be removed radially from the channel. The creasing ring may be continuous or a split ring.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: July 21, 2009
    Assignee: Tech-ni-Fold Ltd.
    Inventors: Graham Harris, Paul Graham Barrett