Patents by Inventor Christopher Stevenson

Christopher Stevenson 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: 10634323
    Abstract: A tool holder clamp fits over the suction hose or intake nozzle of a vacuum pumper truck. The clamp takes the form of two or more C-shaped sections that can bolt together over the hose, with each C-shaped section having one or more through bores serving as sockets for holding a tool such as a flashlight or the head or nozzle of a jet hose. The sockets have associated slots to permit the socket to be snugged down against the tool.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: April 28, 2020
    Inventor: Christopher Stevenson
  • Publication number: 20200003401
    Abstract: A tool holder clamp fits over the suction hose or intake nozzle of a vacuum pumper truck. The clamp takes the form of two or more C-shaped sections that can bolt together over the hose, with each C-shaped section having one or more through bores serving as sockets for holding a tool such as a flashlight or the head or nozzle of a jet hose. The sockets have associated slots to permit the socket to be snugged down against the tool.
    Type: Application
    Filed: June 29, 2018
    Publication date: January 2, 2020
    Inventor: Christopher Stevenson
  • Patent number: 9745735
    Abstract: An intake nozzle fits onto the suction hose of a vacuum pumper truck. The nozzle comprises a tubular housing and the rotor within the housing near the intake end. The rotor includes a hollow cylindrical canister and spiral vanes on its exterior. Ambient air enters an air tube, penetrates the side of the housing and supplies ambient air to the interior of the canister. The air exits through outlet ports into the liquid waste as it moves past under vacuum. The injected air reduces the density of the liquid waste, speeding up the pumping process and reducing the incidence of blockages.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: August 29, 2017
    Inventors: David Stevenson, Christopher Stevenson
  • Publication number: 20150376890
    Abstract: An intake nozzle fits onto the suction hose of a vacuum pumper truck. The nozzle comprises a tubular housing and the rotor within the housing near the intake end. The rotor includes a hollow cylindrical canister and spiral vanes on its exterior. Ambient air enters an air tube, penetrates the side of the housing and supplies ambient air to the interior of the canister. The air exits through outlet ports into the liquid waste as it moves past under vacuum. The injected air reduces the density of the liquid waste, speeding up the pumping process and reducing the incidence of blockages.
    Type: Application
    Filed: June 27, 2014
    Publication date: December 31, 2015
    Inventors: David Stevenson, Christopher Stevenson
  • Publication number: 20150290192
    Abstract: This application discloses the Btk inhibitor compounds 6-tert-Butyl-8-fluoro-2-{3-hydroxymethyl-4-[1-methyl-5-(1?-methyl-1?,2?,3?,4?,5?,6?-hexahydro-[3,4?]bipyridinyl-6-ylamino)-6-oxo-1,6-dihydro-pyridazin-3-yl]-pyridin-2-yl}-2H-phthalazin-1-one, 2-(2-{3-[5-(5-Azetidin-1-ylmethyl-1-methyl-1H-pyrazol-3-ylamino)-1-methyl-6-oxo-1,6-dihydro-pyridazin-3-yl]-2-hydroxy methyl-phenyl}-8-fluoro-1-oxo-1,2-dihydro-isoquinolin-6-yl)-2-methyl-propionitrile, and 6-tert-Butyl-2-[2-hydroxymethyl-3-(5-{5-[(2-methoxy-ethylamino)-methyl]-pyridin-2-ylamino}-6-oxo-1,6-dihydro-pyridin-3-yl)-phenyl]-3,4-dihydro-2H-isoquinolin-1-one, formulations thereof, and methods of treatment of asthma, as described herein.
    Type: Application
    Filed: November 27, 2013
    Publication date: October 15, 2015
    Inventors: Raman Mahadevan Iyer, Dramane Ibrahim Laine, Francisco Javier Lopez-Tapia, Jonathan E. Phillips, Christopher Stevenson
  • Patent number: 6495586
    Abstract: Disclosed are compounds having a scytoneman skeleton, such as scytonemin, and methods of using thereof. Methods of using a compound having a scytoneman skeleton to inhibit, modulate, attenuate, or prevent cell-cycle progression, cell proliferation, kinase activity, or induce apoptosis are disclosed. Also disclosed are methods of treating, preventing, or inhibiting diseases and disorders associated with cell cycle progression, cell proliferation, kinase activity, tissue hyperplasia or angiogenesis, such as cancer or an inflammatory disease.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: December 17, 2002
    Assignees: The Regents of the University of California, Oregon State University, GlaxoSmithKline
    Inventors: Robert S. Jacobs, Lisa A. Marshall, William H. Gerwick, Christopher Stevenson
  • Patent number: 6495588
    Abstract: Disclosed are compounds having a scytoneman skeleton, such as scytonemin, and methods of using thereof. Methods of using a compound having a scytoneman skeleton to inhibit, modulate, attenuate, or prevent cell-cycle progression, cell proliferation, kinase activity, or induce apoptosis are disclosed. Also disclosed are methods of treating, preventing, or inhibiting diseases and disorders associated with cell cycle progression, cell proliferation, kinase activity, tissue hyperplasia or angiogenesis, such as cancer or an inflammatory disease.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: December 17, 2002
    Assignees: The Regents of the University of California, State of Oregon c/o Oregon State University, GlaxoSmithKline
    Inventors: Robert S. Jacobs, Lisa A. Marshall, William H. Gerwick, Christopher Stevenson
  • Publication number: 20020022589
    Abstract: Disclosed are compounds having a scytoneman skeleton, such as scytonemin, and methods of using thereof. Methods of using a compound having a scytoneman skeleton to inhibit, modulate, attenuate, or prevent cell-cycle progression, cell proliferation, kinase activity, or induce apoptosis are disclosed. Also disclosed are methods of treating, preventing, or inhibiting diseases and disorders associated with cell cycle progression, cell proliferation, kinase activity, tissue hyperplasia or angiogenesis, such as cancer or an inflammatory disease.
    Type: Application
    Filed: September 24, 2001
    Publication date: February 21, 2002
    Applicant: The Regents of the University of California
    Inventors: Robert S. Jacobs, Lisa A. Marshall, William H. Gerwick, Christopher Stevenson
  • Publication number: 20010041731
    Abstract: Disclosed are compounds having a scytoneman skeleton, such as scytonemin, and methods of using thereof. Methods of using a compound having a scytoneman skeleton to inhibit, modulate, attenuate, or prevent cell-cycle progression, cell proliferation, kinase activity, or induce apoptosis are disclosed. Also disclosed are methods of treating, preventing, or inhibiting diseases and disorders associated with cell cycle progression, cell proliferation, kinase activity, tissue hyperplasia or angiogenesis, such as cancer or an inflammatory disease.
    Type: Application
    Filed: February 23, 2001
    Publication date: November 15, 2001
    Inventors: Robert S. Jacobs, Lisa A. Marshall, William H. Gerwick, Christopher Stevenson
  • Patent number: 5743474
    Abstract: A macerator (32), e.g. for sewerage, including two stacks of interleaved contra-rotating cutters and spacers is mounted in a macerator chamber (30) having an inlet (60) and an outlet (62). The chamber (32) has a sump (80) upstream of the stacks of the cutters, which are mounted at such an angle that hard, solid material such as stones and metal fall under gravity through the influent into the sump.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: April 28, 1998
    Assignee: Mono Pumps Limited
    Inventor: Christopher Stevenson
  • Patent number: 5061380
    Abstract: The invention is a screening device suitable for screening a liquid material having solid matter suspended in it, which comprises a number of sets of discs, the discs of each set being rigidly mounted on a shaft, with the discs on each shaft being separated from one another axially, means mounting the shafts about parallel axes, with the discs of adjacent shafts being interleaved with one another and means to cause the shafts to rotate independently in the same rotational sense such that successive shafts rotate progressively faster to cause the solid matter suspended in the liquid material to be moved in a direction from the slowest shaft to the fastest shaft. The device is used particularly in sewage processing plants.
    Type: Grant
    Filed: May 31, 1990
    Date of Patent: October 29, 1991
    Assignee: Mono Pumps Limited
    Inventor: Christopher Stevenson
  • Patent number: 4399946
    Abstract: A method and apparatus for forming a cement or plaster slurry, for example, for use in mines, in which bags of cement or plaster are fed into a substantially closed chamber, are ruptured, and water is fed into the chamber at a controlled rate. The resulting mixture is fed into a macerator which serves to comminute the bag material and to mix the cement or plaster which is then fed into a pump, preferably a positive displacement pump, such as a helical gear pump and is thus pumped on to the point of use.
    Type: Grant
    Filed: January 15, 1981
    Date of Patent: August 23, 1983
    Assignee: Mono Oakes Limited
    Inventor: Christopher Stevenson