Patents by Inventor Peter Greenwood

Peter Greenwood 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: 20160196927
    Abstract: The present invention relates to a module of opto-electronic devices, which comprises a plurality of opto-electronic devices arranged on a first electrically insulating carrier substrate to define a plurality of interconnection regions between the opto-electronic devices, with each opto-electronic device comprising: —an upper device component that comprises a second electrically insulating carrier substrate and a counter electrode made of a metal, a conductive oxide or a conductive organic compound; —a lower device component that comprises a working electrode, a blocking layer, an active layer, a hole conducting layer and a lower contact layer, and —a conductive adhesive disposed between the upper device component and the lower device component, wherein the conductive adhesive disposed between the upper device component and the lower device component is a transparent conductive adhesive and an interconnecting conductive adhesive is provided in each interconnection region between, and in electrical contact wit
    Type: Application
    Filed: August 29, 2014
    Publication date: July 7, 2016
    Inventors: Daniel Bryant, Peter Greenwood, Maarten Wijdekop, Udaya Shantha Ketipearachchi, Paolo Melgari
  • Patent number: 9365460
    Abstract: The invention relates to a method of producing a substantially aqueous pigment dispersion substantially free from an organic binder comprising mixing at least one water-soluble or water-dispersible silane compound and colloidal silica particles to form silanized colloidal silica particles in an aqueous dispersion whereby said at least one silane compound is mixed with colloidal silica particles in a weight ratio of silane to silica of from about 0.2 to about 1.5, mixing said silanized colloidal silica particles with an organic and/or inorganic pigment, wherein the weight ratio of silica to pigment is from about 0.001 to about 0.8 to form said substantially aqueous pigment dispersion. The invention also relates to an aqueous pigment dispersion obtained from the method defined herein.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: June 14, 2016
    Assignee: Akzo Nobel N.V.
    Inventors: Peter Greenwood, Hans Lagnemo
  • Patent number: 8361946
    Abstract: The invention relates to a method of preparing an aqueous detergent dispersion comprising mixing at least one silane compound, colloidal silica particles, and a detergent to form an aqueous detergent dispersion comprising silanized colloidal silica particles. The invention also relates to a dispersion obtainable by the method and to the use thereof.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: January 29, 2013
    Assignee: Akzo Nobel N.V.
    Inventors: Peter Greenwood, Hans Lagnemo
  • Patent number: 7674833
    Abstract: The present invention relates to a method of preparing a composition comprising mixing a silica sol having an S-value from about 5 to about 50% and a mineral acid. The invention also relates to a composition obtainable by the method and a composition comprising a network of silica particles and mineral acid, wherein the silica particles have a particle size of from about 2 to about 7 nm. The invention also relates to the use of the composition as a gelled electrolyte.
    Type: Grant
    Filed: November 9, 2004
    Date of Patent: March 9, 2010
    Assignee: Akzo Nobel N.V.
    Inventors: Peter Greenwood, Hans Lagnemo, Matthew Reed
  • Patent number: 7553888
    Abstract: The invention relates to a method of producing an aqueous dispersion comprising mixing at least one silane compound and colloidal silica particles to form silanized colloidal silica particles, mixing said silanized colloidal silica particles with an organic binder to form the dispersion. The invention also relates to a dispersion obtainable by the method, and the use thereof.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: June 30, 2009
    Assignee: Akzo Nobel N.V.
    Inventors: Peter Greenwood, Hans Lagnemo
  • Patent number: 7544726
    Abstract: The invention relates to a method of producing a stable substantially aqueous silanized colloidal silica dispersion having a silica content of at least about 20 wt %, comprising mixing at least one silane compound and colloidal silica particles, wherein the weight ratio of silane to silica is from about 0.003 to about 0.2. The invention also relates to a dispersion obtainable by the method, and to a stable substantially aqueous silanized colloidal silica dispersion having a silica content of at least about 20 wt %, wherein the weight ratio of silane to silica is from about 0.003 to about 0.2. The invention further concerns the use of the dispersion for coatings applications and as an additive.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: June 9, 2009
    Assignee: Akzo Nobel N.V.
    Inventor: Peter Greenwood
  • Publication number: 20080295738
    Abstract: The invention relates to a method of producing a substantially aqueous pigment dispersion substantially free from an organic binder comprising mixing at least one water-soluble or water-dispersible silane compound and colloidal silica particles to form silanized colloidal silica particles in an aqueous dispersion whereby said at least one silane compound is mixed with colloidal silica particles in a weight ratio of silane to silica of from about 0.2 to about 1.5, mixing said silanized colloidal silica particles with an organic and/or inorganic pigment, wherein the weight ratio of silica to pigment is from about 0.001 to about 0.8 to form said substantially aqueous pigment dispersion. The invention also relates to an aqueous pigment dispersion obtained from the method defined herein.
    Type: Application
    Filed: November 7, 2007
    Publication date: December 4, 2008
    Applicant: AKZO NOBEL N.V.
    Inventors: Peter GREENWOOD, Hans Lagnemo
  • Patent number: 7438342
    Abstract: A pickup truck topper is provided that has a retractable rear door that can be stored in a closed position and an open position. In the open position the topper rear door is stored in a horizontal position just under the roof of the topper. In the closed position the topper rear door is fastened on the rear of the pickup topper above the tailgate of the pickup. The topper has two horizontal tracks mounted on the inside of topper near the roof. The topper rear door has two rollers fasten thereon. The rollers glide in the tracks when the door moves between the closed and the open position. The topper rear door can be locked in closed position and the topper door can be locked in the fully open and retracted position.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: October 21, 2008
    Inventor: Peter Greenwood
  • Publication number: 20080224495
    Abstract: A pickup truck topper is provided that has a retractable rear door that can be stored in a closed position and an open position. In the open position the topper rear door is stored in a horizontal position just under the roof of the topper. In the closed position the topper rear door is fastened on the rear of the pickup topper above the tailgate of the pickup. The topper has two horizontal tracks mounted on the inside of topper near the roof. The topper rear door has two rollers fasten thereon. The rollers glide in the tracks when the door moves between the closed and the open position. The topper rear door can be locked in closed position and the topper door can be locked in the fully open and retracted position.
    Type: Application
    Filed: March 12, 2007
    Publication date: September 18, 2008
    Inventor: Peter Greenwood
  • Patent number: 7163358
    Abstract: The invention relates to the use of a composition for injection grouting obtainable by mixing an alkali metal silicate or an organic silicate, colloidal silica particles, and at least one gelling agent, wherein the weight ratio of colloidal silica to silicate is from about 2:1 to about 100:1. The invention also relates to a method of sealing a leaking part or cavity, and method of cutting off a liquid flow in a leaking part or cavity. The invention further relates to a composition for injection grouting and a method for preparing such composition.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: January 16, 2007
    Assignee: Akzo Nobel N.V.
    Inventors: Peter Greenwood, Inger Jansson, Ulf Skarp
  • Publication number: 20060263694
    Abstract: The present invention relates to a method of preparing a composition comprising mixing a silica sol having an S-value from about 5 to about 50% and a mineral acid. The invention also relates to a composition obtainable by the method and a composition comprising a network of silica particles and mineral acid, wherein the silica particles have a particle size of from about 2 to about 7 nm. The invention also relates to the use of the composition as a gelled electrolyte.
    Type: Application
    Filed: November 9, 2004
    Publication date: November 23, 2006
    Applicant: Akzo Nobel N.V.
    Inventors: Peter Greenwood, Hans Lagnemo, Matthew Reed
  • Publication number: 20060185916
    Abstract: A high-torque gear assembly for a personal mobility apparatus is disclosed generally comprising a shaft that drives a drive wheel of the personal mobility apparatus, a worm driven by a motor, and a worm wheel coupled to the shaft and driven by the worm, where both the worm wheel is a globoid gear and the worm is a globoid worm. In some embodiments, a gear train is coupled between a gear shaft and a drive wheel shaft for translating the rotational motion. In certain embodiments, the worm wheel and the worm have a gear ratio of at least 10:1, and the worm has a lead angle between twenty and thirty degrees.
    Type: Application
    Filed: February 2, 2006
    Publication date: August 24, 2006
    Inventors: Peter Greenwood, Benedict Aliano
  • Publication number: 20060135676
    Abstract: The present invention relates to a barrier composition comprising a dispersion, emulsion or solution of a polymer, starch or starch derivative; colloidal silica particles and a curing agent capable of cross-linking said polymer, starch or starch derivative and coupling said silica particles thereto. The invention also relates to a barrier layer obtainable from said barrier composition and a method of providing such composition and layer. The invention also relates to a laminated packaging material comprising a substrate layer and a barrier layer formed from a barrier composition on at least one side of the substrate layer. The invention also relates to the use thereof, inter alia to provide a packaging container, a barrier film etc.
    Type: Application
    Filed: December 13, 2005
    Publication date: June 22, 2006
    Applicant: AKZO NOBEL N.V.
    Inventors: Peter Greenwood, Hans Lagnemo
  • Publication number: 20050233937
    Abstract: The invention relates to a method of preparing an aqueous detergent dispersion comprising mixing at least one silane compound, colloidal silica particles, and a detergent to form an aqueous detergent dispersion comprising silanized colloidal silica particles. The invention also relates to a dispersion obtainable by the method and to the use thereof.
    Type: Application
    Filed: April 7, 2005
    Publication date: October 20, 2005
    Applicant: AKZO NOBEL N.V.
    Inventors: Peter Greenwood, Hans Lagnemo
  • Patent number: 6893538
    Abstract: The invention relates to an aqueous silica-based sol comprising a nitrogen-containing organic compound and silica-based particles with a specific surface area of at least 300 square meters per gram of silica. The invention further relates to a process for the production of an aqueous silica-based sol comprising a nitrogen-containing organic compound which comprises incorporating a nitrogen-containing organic compound into a silica-based sol containing silica-based particles with a specific surface area of at least 300 square meters per gram of silica. The invention also relates to the use of an aqueous silica-based sol comprising a nitrogen-containing organic compound and silica-based particles with a specific surface area of at least 300 square meters per gram of silica as a flocculating agent in the production of pulp and paper and in water purification.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: May 17, 2005
    Assignee: Akzo Nobel N.V.
    Inventors: Peter Greenwood, Magnus Olof Linsten, Hans E. Johansson-Vestin
  • Publication number: 20050079016
    Abstract: The invention relates to the use of a composition for injection grouting obtainable by mixing an alkali metal silicate or an organic silicate, colloidal silica particles, and at least one gelling agent, wherein the weight ratio of colloidal silica to silicate is from about 2:1 to about 100:1. The invention also relates to a method of sealing a leaking part or cavity, and method of cutting off a liquid flow in a leaking part or cavity. The invention further relates to a composition for injection grouting and a method for preparing such composition.
    Type: Application
    Filed: August 20, 2003
    Publication date: April 14, 2005
    Inventors: Peter Greenwood, Inger Jansson, Ulf Skarp
  • Patent number: 6869256
    Abstract: A method for sealing rock or soil comprising inserting a sealing composition obtained by mixing a silica sol and at least one gelling agent, wherein the silica sol has an S-value higher than about 72%, a method for preparing the sealing composition and the composition obtained from the method.
    Type: Grant
    Filed: March 26, 2003
    Date of Patent: March 22, 2005
    Assignee: Akzo Nobel N.V.
    Inventors: Peter Greenwood, Inger Jansson, Ulf Skarp
  • Patent number: 6857824
    Abstract: The present invention relates to a method for sealing rock or soil comprising inserting a sealing composition obtained by mixing a silica sol and at least one gelling agent, wherein the silica sol has an S-value higher than about 72%, a method for preparing the sealing composition and the composition obtained from the method.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: February 22, 2005
    Assignee: Akzo Nobel N.V.
    Inventors: Peter Greenwood, Inger Jansson, Ulf Skarp
  • Patent number: 6800130
    Abstract: The invention relates to a construction material comprising a hydraulic binder, water, and an aluminum-modified colloidal silica. The invention also relates to a method for preparing such materials and the use thereof.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: October 5, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Peter Greenwood, Hans Bergqvist, Ulf Skarp
  • Patent number: 6764543
    Abstract: The invention concerns silica sol mixture comprising a first silica sol having a broad particle size distribution, the relative standard deviation being at least about 30% by numbers, and a second silica sol having a narrow particle size distribution having a relative standard deviation lower than about 15% by numbers. The invention also concerns a method for preparing a silica sol mixture and use thereof. The invention further concerns a concrete composition comprising a silica sol mixture and a method for preparing such composition.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: July 20, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Peter Greenwood, Hans Bergqvist, Ulf Skarp