Patents by Inventor Brian K. Johnson
Brian K. Johnson 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).
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Patent number: 11007386Abstract: An augmentation amplifier is provided for aspirating gas flow from a surrounding medium. The amplifier connects at an inlet to a pressurized gas source and at an outlet to a gas receiver. Ambient gas from the medium supplements source provided compressed gas. The amplifier includes a Venturi conduit including a throat, an external cavity and a diffusion chamber. The conduit receives and flows pressurized gas from the inlet to the throat. The cavity receives ambient gas from the medium. The chamber expands and accelerates the pressurized gas from the throat to entrain the ambient gas via aspiration. The accelerated and ambient gases combine into an exhaust gas to the outlet.Type: GrantFiled: November 20, 2018Date of Patent: May 18, 2021Inventors: Aidan J. Cowhig, Alexander M. Dixon, Brian K. Johnson, James M. Lambeth, Richard A. Graves, Andrew L. Levy
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Publication number: 20200025226Abstract: An augmentation amplifier is provided for aspirating gas flow from a surrounding medium. The amplifier connects at an inlet to a pressurized gas source and at an outlet to a gas receiver. Ambient gas from the medium supplements source provided compressed gas. The amplifier includes a Venturi conduit including a throat, an external cavity and a diffusion chamber. The conduit receives and flows pressurized gas from the inlet to the throat. The cavity receives ambient gas from the medium. The chamber expands and accelerates the pressurized gas from the throat to entrain the ambient gas via aspiration. The accelerated and ambient gases combine into an exhaust gas to the outlet.Type: ApplicationFiled: November 20, 2018Publication date: January 23, 2020Applicant: United States of America, as represented by the Secretary of the NavyInventors: Aidan J. Cowhig, Alexander M. Dixon, Brian K. Johnson, James M. Lambeth, Richard A. Graves, Andrew L. Levy
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Publication number: 20190192884Abstract: An augmentation amplifier is provided for aspirating gas flow from a surrounding medium. The amplifier connects at an inlet to a pressurized gas source and at an outlet to a gas receiver. Ambient gas from the medium supplements source provided compressed gas. The amplifier includes a Venturi conduit including a throat, an external cavity and a diffusion chamber. The conduit receives and flows pressurized gas from the inlet to the throat. The cavity receives ambient gas from the medium. The chamber expands and accelerates the pressurized gas from the throat to entrain the ambient gas via aspiration. The accelerated and ambient gases combine into an exhaust gas to the outlet.Type: ApplicationFiled: November 20, 2018Publication date: June 27, 2019Applicant: United States of America, as represented by the Secretary of the NavyInventors: Aiden J. Cowhig, Alexander M. Dixon, Brian K. Johnson, James M. Lambeth, Richard A. Graves, Andrew L. Levy
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Publication number: 20180193280Abstract: This invention discloses a process for making nanoparticles of amphiphilic copolymers by flash precipitation. Nanoparticles may be of amphiphilic copolymer alone or may contain an additive target molecule, preferably an organic active. The inclusion of additive target molecules in amphiphilic copolymer nanoparticles can alter their water solubility characteristics, fluid dynamics, and/or stability. Changing an additive target molecule's solubility and stability in a nanoparticle can make a water insoluble compound suitable for pharmaceutical administration as well as specifically target the molecule to a specific area of a patient's body. The process affords the production of nanoparticles at high absolute active content, at high yield, high productivity, and high processing rates while using unusually low amounts of amphiphilic copolymers. Furthermore, the resulting particles exhibit sufficient stability for post processing as desired.Type: ApplicationFiled: March 6, 2018Publication date: July 12, 2018Inventors: Brian K. Johnson, Robert K. Prud'homme
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Patent number: 9956179Abstract: This invention discloses a process for making nanoparticles of amphiphilic copolymers by flash precipitation. Nanoparticles may be of amphiphilic copolymer alone or may contain an additive target molecule, preferably an organic active. The inclusion of additive target molecules in amphiphilic copolymer nanoparticles can alter their water solubility characteristics, fluid dynamics, and/or stability. Changing an additive target molecule's solubility and stability in a nanoparticle can make a water insoluble compound suitable for pharmaceutical administration as well as specifically target the molecule to a specific area of a patient's body. The process affords the production of nanoparticles at high absolute active content, at high yield, high productivity, and high processing rates while using unusually low amounts of amphiphilic copolymers. Furthermore, the resulting particles exhibit sufficient stability for post processing as desired.Type: GrantFiled: February 8, 2012Date of Patent: May 1, 2018Assignee: The Trustees of Princeton UniversityInventors: Brian K. Johnson, Robert K. Prud'homme
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Publication number: 20120171254Abstract: This invention discloses a process for making nanoparticles of amphiphilic copolymers by flash precipitation. Nanoparticles may be of amphiphilic copolymer alone or may contain an additive target molecule, preferably an organic active. The inclusion of additive target molecules in amphiphilic copolymer nanoparticles can alter their water solubility characteristics, fluid dynamics, and/or stability. Changing an additive target molecule's solubility and stability in a nanoparticle can make a water insoluble compound suitable for pharmaceutical administration as well as specifically target the molecule to a specific area of a patient's body. The process affords the production of nanoparticles at high absolute active content, at high yield, high productivity, and high processing rates while using unusually low amounts of amphiphilic copolymers. Furthermore, the resulting particles exhibit sufficient stability for post processing as desired.Type: ApplicationFiled: February 8, 2012Publication date: July 5, 2012Inventors: Brian K. Johnson, Robert K. Prud'homme
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Patent number: 8137699Abstract: This invention discloses a process for making nanopanticles of amphiphilic copolymers by flash precipitation. Nanoparticles may be of amphiphilic copolymer alone or may contain an additive target molecule, preferably an organic active. The inclusion of additive target molecules in amphiphilic copolymer nanoparticles can alter their water solubility characteristics, fluid dynamics, and/or stability. Changing an additive target molecule's solubility and stability in an nanoparticle can make a water insoluble compound suitable for pharmaceutical administration as well as specifically target the molecule to a specific area of a patient's body. The process affords the production of nanoparticles at high absolute active content, at high yield, high productivity, and high processing rates while using unusually low amounts of amphiphilic copolymers. Furthermore, the resulting particles exhibit sufficient stability for post processing as desired.Type: GrantFiled: March 29, 2002Date of Patent: March 20, 2012Assignee: Trustees of Princeton UniversityInventors: Brian K Johnson, Robert K Prud'homme
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Patent number: 8097050Abstract: A vacuum apparatus rotatable about an axis through a filter screen for continually removing contaminants, which utilizes an asymmetrical vacuum arm supported by a center hub, and large longitudinally extending asymmetrical vacuum orifices in portions of the arm on opposite sides of the hub, operable for removing large elements of debris, trash and the like from the screen. One of the arm portions cleans a radial outer region of the screen, and the other cleans an inner region, the arm portions being generally even in mass for balance. A knife disposed on the screen cleans and cooperates with a brush on the arm for breaking up larger elements of trash. The arm is also manually removable via a snap together vacuum seal joint, for service and cleaning.Type: GrantFiled: December 19, 2008Date of Patent: January 17, 2012Assignee: CNH America LLCInventors: Brian K. Johnson, Panos Tamamidis, David A. Scott
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Publication number: 20100256246Abstract: A thermal conversion process comprising: pyrolizing or gasifying a carbonaceous feedstock to produce a first synthesis gas having a first H2:CO ratio of less than a minimum value or greater than a maximum value; providing enriched oxygen; and subjecting the first synthesis gas to partial oxidation in the presence of at least a portion of the enriched oxygen to produce a conditioned synthesis gas having a desired ratio of H2:CO in the range of from the minimum value to the maximum value. A method of producing FT product liquids by providing a conditioned synthesis gas according to the process and producing FT product liquids by subjecting the conditioned synthesis gas to FT reaction under FT operating conditions. A system for carrying out the methods is also provided.Type: ApplicationFiled: April 6, 2010Publication date: October 7, 2010Applicant: RENTECH, INC.Inventors: Benjamin H. CARRYER, Eric R. ELROD, Mark D. IBSEN, Brian K. JOHNSON, Harold A. WRIGHT
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Publication number: 20090211208Abstract: A vacuum apparatus rotatable about an axis through a filter screen for continually removing contaminants, which utilizes an asymmetrical vacuum arm supported by a center hub, and large longitudinally extending asymmetrical vacuum orifices in portions of the arm on opposite sides of the hub, operable for removing large elements of debris, trash and the like from the screen. One of the arm portions cleans a radial outer region of the screen, and the other cleans an inner region, the arm portions being generally even in mass for balance. A knife disposed on the screen cleans and cooperates with a brush on the arm for breaking up larger elements of trash. The arm is also manually removable via a snap together vacuum seal joint, for service and cleaning.Type: ApplicationFiled: December 19, 2008Publication date: August 27, 2009Inventors: Brian K. Johnson, Panos Tamamidis, David A. Scott
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Publication number: 20090087492Abstract: The present invention relates to a process, for the production of crystalline particles of an active organic compound The process includes the steps of generating a micro-seed by a wet-milling process and subjecting the micro-seed to a crystallization process. The resulting crystalline particles have a mean particle size of less than about 100 ?m. The present invention also provides for a pharmaceutical composition which includes the crystalline particles produced by the method described herein and a pharmaceutically acceptable carrier.Type: ApplicationFiled: March 12, 2007Publication date: April 2, 2009Applicant: MERCK & CO., INC.Inventors: Brian K. Johnson, Hsien Hsin Tung, Ivan Lee, Aaron S. Cote, Cindy Starbuck, Michael Midler
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Patent number: 7022841Abstract: The present invention relates to a process for reducing the levels of organic solvents to pharmaceutically acceptable levels in thermally unstable crystalline carbapenem solids represented by formula I: or a salt thereof, wherein R1 and R2, are the same or different, and are selected from H, alkyl, aryl, and heteroaryl, comprising washing a carbapenem solid containing organic solvent with an organic solvent containing water; and using vacuum and/or inert gas (hydrated or dry) at low temperature to produce a compound of formula I containing pharmaceutically acceptable levels of organic solvents, wherein the water content of the crystalline carbapenem solid, correcting for organic solvents, is maintained at about 13% to about 25% during the process.Type: GrantFiled: September 20, 2002Date of Patent: April 4, 2006Assignee: Merck & Co. Inc.Inventors: Raymond Cvetovich, Robert Wenslow, John M. Williams, Daniel Sidler, Louis Crocker, Hsien-Hsin Tung, Brian K. Johnson, Joseph Kukura, II, Ulf Dolling
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Publication number: 20040176351Abstract: The present invention relates to a process for reducing the levels of organic solvents to pharmaceutically acceptable levels in thermally unstable crystalline carbapenem solids represented by formula I: 1Type: ApplicationFiled: January 27, 2004Publication date: September 9, 2004Inventors: Raymond Cvetovich, Robert Wenslow, John Williams, Daniel Sidler, Louis Crocker, Hsien-Hsin Tung, Brian K Johnson, Joseph Kukura, Ulf Dolling
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Publication number: 20040091546Abstract: This invention discloses a process for making nanopanticles of amphiphilic copolymers by flash precipitation. Nanoparnicles may be of amphiphilic copolymer alone or may contain an additive target molecule, preferably an organic active. The inclusion of additive target molecules in amphiphilic copolymer nanoparticles can alter their water solubility characteristics, fluid dynamics, and/or stability. Changing an additive target molecule's solubility and stability in an nanoparticle can make a water insoluble compound suitable for pharmaceutical administration as well as specifically target the molecule to a specific area of a patient's body. The process affords the production of nanoparticles at high absolute active content, at high yield, high productivity, and high processing rates while using unusually low amounts of amphiphilic copolymers. Furthermore, the resulting particles exhibit sufficient stability for post processing as desired.Type: ApplicationFiled: October 23, 2003Publication date: May 13, 2004Inventors: Brian K Johnson, Robert K Prud'Homme
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Patent number: 5938092Abstract: A continuously curved drawbar adapted to be mounted in a receiver hitch for extending the bed of a transport vehicle and enhancing load carrying capacity. The drawbar is formed as a box beam with a straight section at one end for receipt in the receiver hitch and rising above the receiver hitch at the second end. An adapter is provided at the end second for mounting a load. The curved drawbar reduces the amount of high-load impact transferred to the receiver hitch and resists permanent deflection.Type: GrantFiled: November 17, 1997Date of Patent: August 17, 1999Inventor: Brian K. Johnson
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Patent number: 5678743Abstract: A truck bed extender mountable in a receivable trailer hitch has an elongated support bar and a rack. The rack has a horizontal cross bar that is vertically adjustable on the support bar at the end opposite that where the support bar is secured to the receiver trailer hitch.Type: GrantFiled: June 13, 1996Date of Patent: October 21, 1997Inventors: Brian K. Johnson, Jerry R. Johnson
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Patent number: 5471671Abstract: A handset (24, 25) in a radio communication system (20) determines the quality of a channel (500 and 502) in response to an RSSI signal generated by a receiver (174) in combination with either an eye closure measurement (510) or a bit error rate detected by a CRC codeword in received digital information (502). The battery operated handset is also capable of conserving scanning power while operating in an area having high channel quality (520, 560, 566). The handset also has a method for determining the amount of handovers between base stations (21, 22, 23) by use of dual channel quality thresholds (582, 590) which require a higher quality threshold for establishing communication with a base station and a reduction in channel quality before a handover to a new base station.Type: GrantFiled: November 3, 1993Date of Patent: November 28, 1995Assignee: Motorola, Inc.Inventors: Zhonghe Wang, Brian K. A. Johnson
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Patent number: 5259021Abstract: A public telephone network to portable telephone interconnection device (20) is provided. At least one transceiver (30a-n) interconnects a plurality of portable telephones (12) to the public telephone network (16). A channel monitor (38) monitors the transceivers (30a-n and 82) to provide information. At least one information transceiver (82) interconnects the plurality of portable telephones (12) to and is responsive to the monitor (38) for transmitting (104) the information to the plurality of portable telephones (12).Type: GrantFiled: March 9, 1993Date of Patent: November 2, 1993Assignee: Motorola, Inc.Inventors: Gary A. Antilla, Mark S. Stuglik, Felix W. Krupczynski, Stelios J. Patsiokas, Frank E. Lambrecht, Brian K. Johnson
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Patent number: 5127100Abstract: A digital radio communication system includes a plurality of cells for providing two-way digital radio communication. Each of the cells utilizes communication frames having at least one inbound communication slot and at least one outbound communication slot. The frames of each cell are of uniform length. At least some of the cells have different bit rates than other cells. Information about the contiguous cells is provided to the radios operating within a cell. The radio includes a memory for storing information on adjacent cells and the radio can evaluate the signal of adjacent cells for determining an appropriate cell for hand-off purposes.Type: GrantFiled: April 27, 1989Date of Patent: June 30, 1992Assignee: Motorola, Inc.Inventors: Thomas V. D'Amico, Brian K. A. Johnson
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Patent number: 5107494Abstract: Subscribers participating in a call may communicate information un-impeded until the occurrence of an event (such as the expiration of a time interval). After detecting this event, the quality or intelligibility of the communicated information is repeatedly reduced to encourage the subscribers to voluntarily conclude the call.Type: GrantFiled: November 16, 1990Date of Patent: April 21, 1992Assignee: Motorola, Inc.Inventors: Brian K. A. Johnson, Stelios J. Patsiokas