Patents by Inventor David Baxter

David Baxter 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: 20050266572
    Abstract: A method for marking a liquid petroleum hydrocarbon. The method comprises adding to the liquid petroleum hydrocarbon at least one substituted anthraquinone dye having formula (I) wherein R1 and R2 independently are hydrogen, hydroxy, OR11, amino or NR11R12; R3 and R5 independently are alkyl, aryl, aralkyl, heteroalkyl or heterocyclic; R4 and R6 independently are hydrogen or alkyl; R7, R8, R9 and R10 independently are cyano, nitro or hydrogen, provided that at least two of R7, R8, R9 and R10 are cyano or nitro; R11 is alkyl, aryl, aralkyl, heteroalkyl, heterocyclic or alkanoyl; R12 is hydrogen or alkyl; and wherein the substituted anthraquinone dye(s) has an absorption maximum in the range from 690 nm to 1000 nm.
    Type: Application
    Filed: May 26, 2004
    Publication date: December 1, 2005
    Inventors: Kim Ho, David Baxter
  • Patent number: 6926210
    Abstract: An automatic gutter cleaning system for cleaning a rain valley, gutter or drainage channel with a medium, such as air or water. The system includes carrying apparatus for carrying the medium through nozzles into the gutter or channel. The medium flushes the debris located in the valley or gutter either out of the valley or gutter or down the gutter through the down spouts. The system is automatically operated by a controller that either controls the frequency the medium is sent to the nozzles or turns on the system due to inputs from a monitoring means that monitors whether debris is or isn't present in the valley or gutter.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: August 9, 2005
    Inventor: David Baxter
  • Publication number: 20050045738
    Abstract: An automatic gutter cleaning system for cleaning a rain valley, gutter or drainage channel with a medium, such as air or water. The system includes carrying apparatus for carrying the medium through nozzles into the gutter or channel. The medium flushes the debris located in the valley or gutter either out of the valley or gutter or down the gutter through the down spouts. The system is automatically operated by a controller that either controls the frequency the medium is sent to the nozzles or turns on the system due to inputs from a monitoring means that monitors whether debris is or isn't present in the valley or gutter.
    Type: Application
    Filed: August 27, 2003
    Publication date: March 3, 2005
    Inventor: David Baxter
  • Publication number: 20040023949
    Abstract: The present invention makes available methods and reagents for inhibiting aberrant growth states resulting from hedgehog gain-of-function, ptc loss-of-function or smoothened gain-of-function comprising contacting the cell with a hedgehog antagonist, such as a small molecule, in a sufficient amount to aberrant growth state, e.g., to agonize a normal ptc pathway or antagonize smoothened or hedgehog activity.
    Type: Application
    Filed: April 4, 2003
    Publication date: February 5, 2004
    Applicant: Curis, Inc.
    Inventors: Anthony David Baxter, Edward Andrew Boyd, Oivin Guicherit, Stephen Price, Lee L. Rubin
  • Patent number: 6683108
    Abstract: The present invention makes available methods and reagents for inducing activation of a hedgehog pathway in a cell or tissue comprising contacting the cell with a hedgehog agonist, such as a small molecule, in a sufficient amount to achieve a therapeutic result. In certain embodiments, the methods and reagents may be employed to correct or inhibit an aberrant or unwanted growth state, e.g., by antagonizing a normal ptc pathway or agonizing smoothened or hedgehog activity.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: January 27, 2004
    Assignee: Curis, Inc.
    Inventors: Anthony David Baxter, Edward Andrew Boyd, Oivin M. Guicherit, Jeffrey Porter, Stephen Price, Lee Rubin
  • Patent number: 6683192
    Abstract: A compound represented in general formula (X) and (XI):
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: January 27, 2004
    Assignee: Curis, Inc.
    Inventors: Anthony David Baxter, Edward Andrew Boyd, Oivin M. Guicherit, Jeffrey Porter, Stephen Price, Lee Rubin, John Harry Alexander Stibbard
  • Patent number: 6613798
    Abstract: The present invention makes available methods and reagents for modulating proliferation or differentiation in a cell or tissue comprising contacting the cell with a hedgehog agonist, such as the compounds depicted in FIGS. 32 and 33. In certain embodiments, the methods and reagents may be employed to correct or inhibit an aberrant or unwanted growth state, e.g., by antagonizing a normal ptc pathway or agonizing smoothened or hedgehog activity.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: September 2, 2003
    Assignee: Curis, Inc.
    Inventors: Jeffrey Porter, Oivin M. Guicherit, Lee Rubin, Anthony David Baxter, Edward Andrew Boyd, Stephen Price
  • Publication number: 20030139457
    Abstract: The present invention makes available methods and reagents for modulating proliferation or differentiation in a cell or tissue comprising contacting the cell with a hedgehog agonist, such as the compounds depicted in FIGS. 32 and 33. In certain embodiments, the methods and reagents may be employed to correct or inhibit an aberrant or unwanted growth state, e.g., by antagonizing a normal ptc pathway or agonizing smoothened or hedgehog activity.
    Type: Application
    Filed: September 17, 2002
    Publication date: July 24, 2003
    Applicant: Curis, Inc.
    Inventors: Anthony David Baxter, Edward Andrew Boyd, Maria Frank-Kamenetsky, Oivin Guicherit, Jeffery Porter, Stephen Price, Lee Rubin, John Harry Alexander Stibbard
  • Patent number: 6562960
    Abstract: An oligonucleotide analogue having 10 to 200 natural and/or synthetic nucleoside units, linked by internucleoside linkages, at least one of the internucleoside linkages being of formula where the indicated methylene group is attached to a 3′ carbon atom of a nucleoside, the indicated oxygen atom is attached to a 5′-carbon atom of an adjacent nucleside, R1 is hydrogen, hydroxy, O—, thiol, S—, —NH2 or a group of formula R1a, —OR1a, —SR1a, —NHR1b, or —NR1bR1c wherein R1a is an unsubstituted or substituted C1 to C10 alkyl, C2 to C10 alkenyl, C3 to C8 cycloalkyl, C6 to C10 aryl or C7 to C13 aralkyl group; and R1b and R1c are each independently an unsubstituted or substituted C1 to C10 alkyl, C2 to C10 alkenyl, C3 to C8 cycloalkyl, C6 to C10 aryl or C7 to C13 aralkyl group or R1b and R1c together with the nitrogen atom to which they are attached denote a five- or six-membered heterocyclic ring, and X is oxygen or sulfur.
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: May 13, 2003
    Assignee: ISIS Pharmaceuticals, Inc.
    Inventors: Anthony David Baxter, Stephen Paul Collingwood, Mark Edward Douglas, Roger John Taylor
  • Patent number: 6552016
    Abstract: The present invention makes available methods and reagents for inhibiting aberrant growth states resulting from hedgehog gain-of-function, ptc loss-of-function or smoothened gain-of-function comprising contacting the cell with a hedgehog antagonist, such as a small molecule, in a sufficient amount to aberrant growth state, e.g., to agonize a normal ptc pathway or antagonize smoothened or hedgehog activity.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: April 22, 2003
    Assignee: Curis, Inc.
    Inventors: Anthony David Baxter, Edward Andrew Boyd, Oivin M. Guicherit, Stephen Price, Lee Rubin
  • Patent number: 6545005
    Abstract: The present invention makes available methods and reagents for inhibiting aberrant growth states resulting from hedgehog gain-of-function by contacting the cell with a hedgehog antagonist, such as a small molecule, in a sufficient amount to aberrant growth state, e.g., to agonize a normal ptc pathway or antagonize hedgehog activity.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: April 8, 2003
    Assignee: Curtis, Inc.
    Inventors: Anthony David Baxter, Edward Andrew Boyd, Oivin M. Guicherit, Stephen Price, Lee D. Rubin
  • Publication number: 20020198236
    Abstract: The present invention makes available methods and reagents for modulating proliferation or differentiation in a cell or tissue comprising contacting the cell with a hedgehog agonist, such as the compounds depicted in FIGS. 32 and 33. In certain embodiments, the methods and reagents may be employed to correct or inhibit an aberrant or unwanted growth state, e.g., by antagonizing a normal ptc pathway or agonizing smoothened or hedgehog activity.
    Type: Application
    Filed: September 26, 2001
    Publication date: December 26, 2002
    Inventors: Anthony David Baxter, Edward Andrew Boyd, Oivin M. Guicherit, Jeffery Porter, Stephen Price, Lee Rubin, John Harry Alexander Stibbard
  • Publication number: 20020165221
    Abstract: The present invention makes available methods and reagents for inhibiting aberrant growth states resulting from hedgehog gain-of-function, ptc loss-of-function or smoothened gain-of-function comprising contacting the cell with a hedgehog antagonist, such as a small molecule, in a sufficient amount to aberrant growth state, e.g., to agonize a normal ptc pathway or antagonize smoothened or hedgehog activity.
    Type: Application
    Filed: October 12, 2001
    Publication date: November 7, 2002
    Inventors: Anthony David Baxter, Edward Andrew Boyd, Oivin M. Guicherit, Stephen Price, Lee L. Rubin
  • Patent number: 6475188
    Abstract: A microinjection pump for unrestrained and freely behaving animals is provided. The microinjection pump employs a screw drive mechanism that is actuated by an attached small stepper motor. The pump moves fluid by direct mechanical displacement from two microsyringes arranged in parallel (see FIGS. 1 and 2). The pump pivots and turns freely above an animal cage by an electrical swivel and connects to the animal head only by two small flexible capillary tubes that store and deliver fluids to both sides of its brain. Through associated electronic connections, the pump allows the animal to lever press for self-administration of fluids.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: November 5, 2002
    Inventor: Anthony David Baxter
  • Patent number: 6192416
    Abstract: A method and system for propagating data such as entertainment data in an airline system is disclosed. The entertainment data may comprise video, audio and games data. A computer server device is provided at an airline terminal, and a mobile computer is provided in an aircraft with a hard disk array for storage of the digital data. The data can be propagated in the system to aircraft and to further airline terminals by an automatic software function which occurs when an aircraft mobile computer electrically connects with the server computer at the terminal. Such connection is made between the aircraft and an aerobridge at the airline terminal. The software provides checking to see if the mobile computer is an authorized computer, and also to determine whether the data in the mobile computer is more recent than the data in the computer server or vice versa and then a data exchange occurs to replace the old data with new data.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: February 20, 2001
    Assignee: AAV Australia Pty Ltd
    Inventor: Geoffrey David Baxter
  • Patent number: 6175014
    Abstract: The invention provides a process for the preparation of a compound of general formula (I): wherein Im represents an imidazolyl group of the formula: and R1 represents a hydrogen atom or a group as herein defined including —CO2R5, —COR5, —CONR5R6 or —SO2R5 wherein R5 and R6, which may be the same or different, are as herein defined with the proviso that R5 does not represent a hydrogen atom when R1 represents a group —CO2R5 or —SO2R5; one of the groups represented by R2, R3 and R4 is a hydrogen atom or a C1-6alkyl, C3-7cycloaklyl, C3-6alkenyl, phenyl or phenyl C1-3alkyl group, and each of the other two groups, which may be the same or different, represents a hydrogen atom or a C1-6alkyl group; and n represents 2 or 3; which comprises reacting a compound of formula (II) or a protected derivative thereof, with a compound of formula (III): HOCH2-Im  (III) or a salt thereof in the presence of an acid at an elevat
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: January 16, 2001
    Assignee: Glaxo Group Limited
    Inventors: Ian Harold Coates, Alexander William Oxford, Peter Charles North, Thomas Miller, Anthony David Baxter, Kevin Ian Hammond
  • Patent number: 6162951
    Abstract: Compounds of Formula (I) wherein R, R.sup.1, R.sup.2 and R.sup.9 are as herein defined, processes for their preparation and transition metal complexes comprising such compounds are disclosed. The complexes may be attached to insoluble supports and are useful as asymetric catalysts.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: December 19, 2000
    Assignee: Oxford Asymmetry International plc
    Inventors: Mario Eugenio Cosamino Polywka, Edwin Moses, Daniel John Bayston, Anthony David Baxter, Mark Richard Ashton
  • Patent number: 6087490
    Abstract: A compound which is a dinucleotide analogue of formula ##STR1## or a salt thereof, where B.sup.1 and B.sup.2 are each independently a monovalent nucleoside base radical,R.sup.1 is hydrogen or Y.sup.1,R.sup.2 and R.sup.3 are each independently hydrogen, halogen, hydroxy or --OY.sup.2,R.sup.4 is hydrogen, halogen, hydroxy, --OY.sup.3 or R.sup.7,R.sup.5 is hydrogen, halogen or R.sup.8,R.sup.6 is hydrogen, Y.sup.4 or a phosphoramidyl group,Z is a group of formula II, III or IV ##STR2## where R.sup.9 is hydrogen, halogen, hydroxy, --OY.sup.5 or R.sup.13, R.sup.10 is hydrogen, halogen or R.sup.14, R.sup.11 is hydroxy, R.sup.15 or --OR.sup.15 where R.sup.15 is a C.sub.1 to C.sub.10 aliphatic group, a C.sub.3 to C.sub.8 cycloaliphatic group, a C.sub.6 to C.sub.10 aromatic group or a C.sub.7 to C.sub.13 araliphatic group, and R.sup.12 is hydrogen, R.sup.12.sub.a or --OCOR.sup.12.sub.a where R.sup.12.sub.a is a C.sub.1 to C.sub.10 aliphatic group, a C.sub.3 to C.sub.8 cycloaliphatic group, a C.sub.6 to C.sub.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: July 11, 2000
    Assignee: Novartis AG
    Inventors: Anthony David Baxter, Eric Keith Baylis, Stephen Paul Collingwood, Robin Alec Fairhurst, Roger John Taylor
  • Patent number: 5952478
    Abstract: A compound of formula (I) or salts thereof, where R.sup.0 is hydrogen or together with R.sup.7 O denotes a C.sub.1 -C.sub.15 hydrocarbylidenedioxy group, R.sup.1 is hydrogen, R.sup.1.sub.a or a group of formula (II), R.sup.1.sub.a is R.sup.1.sub.b or a protecting group Q, R.sup.1.sub.b is C.sub.1 -C.sub.20 alkyl, C.sub.2 -C.sub.20 alkenyl, C.sub.3 -C.sub.10 cycloalkyl, C.sub.6 -C.sub.15 aryl, C.sub.7 -C.sub.16 aralkyl or a 5- or 6-membered heterocyclic group attached by a carbon atom in the heterocyclic group to the indicated phosphorus atom, R.sup.2 is R.sup.2.sub.a or --OR.sup.15 or together with R.sup.5 denotes an oxy group --O--, provided that R.sup.2 is --OR.sup.15 when R.sup.1 is a group of formula (II), R.sup.2.sub.a is a C.sub.1 -C.sub.20 aliphatic group, a C.sub.3 -C.sub.10 cycloaliphatic group, a C.sub.6 -C.sub.15 aromatic group, a C.sub.7 -C.sub.16 araliphatic group, or a 5- or 6-membered heterocyclic group attached by a carbon atom in the heterocyclic group to the indicated phosphorus atom, R.sup.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: September 14, 1999
    Assignee: Novartis Finance Corporation
    Inventors: Anthony David Baxter, Roger John Taylor, Stephen Paul Collingwood
  • Patent number: 5670489
    Abstract: A dinucleotide analogue of formula ##STR1## where B.sup.1 and B.sup.2 are each independently a monovalent nucleoside base radical;R.sup.1 is R.sup.1.sub.a or Z;R.sup.1.sub.a, R.sup.2, R.sup.3 and R.sup.4 are each independently hydrogen, halogen or hydroxy;R.sup.5 is R.sup.5.sub.a or Z;R.sup.6 is hydrogen or R.sup.6.sub.a ;R.sup.7 is hydrogen, alkyl-N,N-dialkylphosphoramidyl or R.sup.7.sub.a, R.sup.8 is R.sup.8.sub.a or Z, or the indicated R.sup.7 O and R.sup.8 together denote an isopropylidenedioxy group;R.sup.5.sub.a and R.sup.8.sub.a are each independently hydrogen, halogen, hydroxy, --OR.sup.10, --OCOR.sup.10 or silyloxy substituted by three C.sub.1 -C.sub.5 hydrocarbyl groups;R.sup.6.sub.a and R.sup.7.sub.a are each independently a C.sub.1 -C.sub.10 aliphatic radical, a C.sub.6 -C.sub.15 aromatic radical, a C.sub.7 -C.sub.30 araliphatic radical, --COR.sup.11, --SO.sub.2 R.sup.11 or silyl substituted by three C.sub.1 -C.sub.15 hydrocarbyl groups;R.sup.9 is hydrogen, a C.sub.1 -C.sub.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: September 23, 1997
    Assignee: Novartis Corporation
    Inventors: Anthony David Baxter, Eric Keith Baylis, Stephen Paul Collingwood, Roger John Taylor, Alain De Mesmaeker, Chantal Schmit