Patents by Inventor Christopher A. Julian

Christopher A. Julian 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: 10767922
    Abstract: A method and apparatus for liquefying a natural gas feed stream and removing nitrogen therefrom to produce a nitrogen-depleted LNG product, in which a natural gas feed stream is fed into the warm end of a main heat exchanger, cooled and at least partially liquefied, withdrawn from an intermediate location of the main heat exchanger and separated to form a nitrogen-enriched natural gas vapor stream and a nitrogen-depleted natural gas liquid stream, the liquid and vapor streams being reintroduced into an intermediate location of the main heat exchanger and further cooled in parallel to form a first LNG stream and a first at least partially liquefied nitrogen-enriched natural gas stream, respectively.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: September 8, 2020
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Fei Chen, Yang Liu, Gowri Krishnamurthy, Christopher Michael Ott, Mark Julian Roberts
  • Patent number: 10736490
    Abstract: A medical instrument may comprise a first articulatable segment having a first diameter, and a second articulatable segment having a second diameter smaller than the first diameter, wherein the second articulatable segment is coupled to the first articulatable segment and extends in a distal direction past the first articulatable segment. The instrument may also comprise a first force transmission element coupled to the first articulatable segment and extending in a proximal direction from the first articulatable segment to a first connector portion, the first connector portion being configured to be releasably coupled with a first actuator, and a second force transmission element coupled to the second articulatable segment and extending in a proximal direction from the second articulatable segment to a second connector portion, the second connector portion being configured to be releasably coupled with a second actuator.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: August 11, 2020
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Christopher A. Julian, Amir Belson, Aaron W. Brown, Mark Harasym, Marc S. Kreidler, Robert M. Ohline, Scott J. Reiner, Enrique Romo, Charles E. Swinehart, Katherine Whitin
  • Publication number: 20200205770
    Abstract: Electronic stethoscopes may have various accessories, modular components, and various configurations for powering the various components and accessories of the electronic stethoscope. In one embodiment, an electronic stethoscope apparatus includes a microphone configured to generate an electrical signal in response to received sound from a living subject; amplification circuitry; a speaker operably coupled to the amplification circuitry to output the electric signal after amplification; and a power supply configured to power the amplification circuitry. Circuitry for advanced signal processing may also be included, such as noise cancelling circuitry. The electronic stethoscope may also include removable electronic modules for wired or wireless headphones, battery packs, lights, and/or an electronic device for implementing the percussive method.
    Type: Application
    Filed: December 20, 2019
    Publication date: July 2, 2020
    Inventors: David Julian Friedman, Sarah Elizabeth Friedman, Christopher Adam Leedy, Ronald Graczyk
  • Publication number: 20200175764
    Abstract: The disclosed computer-implemented method may include acquiring, from a client device within a real-world environment, information representative of the real-world environment, and transmitting the information representative of the real-world environment to a relocalization service. The method may further include receiving, from the relocalization service, (1) an anchor point that may include a mapped position within the real-world environment, and (2) a determined position within the real-world environment of a client device relative to the mapped position of the anchor point. The method may further include sending an identifier of the anchor point to an asset management service, and obtaining, from the asset management service, a digital asset. The method may further include presenting the digital asset at a position within an artificial environment relative to the mapped position of the anchor point. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Application
    Filed: November 30, 2018
    Publication date: June 4, 2020
    Inventors: Alvaro Collet Romea, Jingming Dong, Xiaoyang Gao, Jiawen Zhang, Yuheng Ren, Raul Mur Artal, Christopher Sweeney, Jakob Julian Engel
  • Patent number: 10667753
    Abstract: The present invention includes systems, devices and methods for treating and/or diagnosing a heart arrhythmia, such as atrial fibrillation. Specifically, the present invention provides a system including a diagnostic catheter and an ablation catheter. The diagnostic catheter includes a shaft, multiple dipole mapping electrodes and multiple ultrasound transducers. The ablation catheter is slidingly received by the diagnostic catheter shaft.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: June 2, 2020
    Assignee: ACUTUS MEDICAL, INC.
    Inventors: Randell L. Werneth, Graydon E. Beatty, Timothy J. Corvi, J. Christopher Flaherty, Marcus Frederick Julian
  • Patent number: 10653318
    Abstract: Provided are a localization system and method useful in the acquisition and analysis of cardiac information. The localization system and method can be used with systems that perform cardiac mapping, diagnosis and treatment of cardiac abnormalities, as examples, and in the retrieval, processing, and interpretation of such types of information. The localization system and method use high impedance inputs, improved isolation, and relatively high drive currents for pairs of electrodes used to establish a multi-axis coordinate system. The axes can be rotated and scaled to improve localization.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: May 19, 2020
    Assignee: ACUTUS MEDICAL, INC.
    Inventors: Daniel J. Welsh, Marcus F. Julian, Graydon E. Beatty, Xinwei Shi, Derrick R. Chou, Randell L. Werneth, J. Christopher Flaherty
  • Publication number: 20200147824
    Abstract: A vegetable knife includes a pulverizing coring pin for pulverizing a core of a vegetable, where the pulverizing coring pin can be a generally cylindrical tube. The pulverizing coring pin can define one or more pulverizing tubes that extend from a first end of the pulverizing coring pin to a second end of the pulverizing coring pin opposite the first end. The vegetable knife also includes at least one vegetable shaping blade that extends radially outwardly from the pulverizing coring pin, where the at least one vegetable shaping blade supports the pulverizing coring pin at a location generally central with respect to the vegetable knife. The vegetable knife may also include an outer flange for coupling the vegetable knife to a rotatable cutting assembly. The vegetable shaping blade can be connected between the outer flange and the pulverizing coring pin for supporting the pulverizing coring pin.
    Type: Application
    Filed: November 12, 2018
    Publication date: May 14, 2020
    Inventors: John Julian, Mark A. Fow, Samuel Monk, Christopher M. Smith
  • Patent number: 10652974
    Abstract: Systems, methods, and apparatus for fiber optic lighting panels that produce twinkling star patterns by means of a light engine and specialized optics are disclosed. In one or more embodiments, a disclosed panel for creating a lighted scene comprises a substrate comprising a first surface, a second surface spaced from the first surface, and a plurality of apertures through the first and second surfaces. The panel further comprises an optical lens disposed on the first surface within each of the apertures. Also, the panel comprises a light distribution unit (LDU) comprising a plurality of light sources coupled to the second surface. Further, the panel comprises a bundle of optical fibers coupled to each of the light sources, where each of the optical fibers is in communication with one of the optical lenses for transferring light emitted by the light sources to create the lighted scene.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: May 12, 2020
    Assignee: The Boeing Company
    Inventors: Kevin Julian Chang, John Christiaan Beckman, Christopher Michael Cipolla, David D. Chen, Diana Elizabeth Bonilla
  • Publication number: 20200093352
    Abstract: A medical instrument may comprise a plurality of links disposed in series along an axial direction. The plurality of links also may comprise a brake assembly comprise one or more first braking components coupled to a first link in the pair of adjacent links and one or more second braking components coupled to a second link in the pair of adjacent links. The one or more first braking components and the one or more second braking components may have an interleaved arrangement with each other. The braking assembly may be actuatable between an engaged state and a disengaged state, wherein the one or more first braking components and the one or more second braking components inhibit the pair of adjacent links from pivoting relative to one another in the engaged state of the brake assembly, and wherein the one or more first braking components and the one or more second braking components permit the pair of adjacent links pivoting relative to one another in the disengaged state of the brake assembly.
    Type: Application
    Filed: November 27, 2019
    Publication date: March 26, 2020
    Applicant: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Jay GURUSAMY, Carson Jay SHELLENBERGER, Christopher A. JULIAN, Joshua T. OEN
  • Publication number: 20200056836
    Abstract: A natural gas liquefaction method and system having integrated nitrogen removal. Recycled LNG gas is cooled in a separate and parallel circuit from the natural gas stream in the main heat exchanger. Cooled recycled gas and natural gas streams are directed to a nitrogen rectifier column after the warm bundle. The recycle stream is introduced to the rectifier column above the natural gas stream and at least one separation stage is located in the rectifier column between the recycle stream inlet and the natural gas inlet. The bottom stream from the rectifier column is directed to a cold bundle of the main heat exchanger where it is subcooled.
    Type: Application
    Filed: August 14, 2018
    Publication date: February 20, 2020
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Mark Julian Roberts, Fei Chen, Christopher Michael Ott, Annemarie Ott Weist
  • Patent number: 10547577
    Abstract: Techniques for templated messages are described. In one embodiment, an apparatus may comprise a messaging component operative to receive a templated-message package at a client, the templated-message package comprising a message-template identifier and one or more parameters; retrieve a message template based on the message-template identifier; and generate a templated message based on the retrieved message template and the one or more parameters; and a user interface component operative to display the templated message in the client. Other embodiments are described and claimed.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: January 28, 2020
    Assignee: WHATSAPP INC.
    Inventors: Vicki Wancheng Lee, Christopher Julian Peiffer
  • Publication number: 20200029406
    Abstract: Systems, methods, and apparatus for fiber optic lighting panels that produce twinkling star patterns by means of a light engine and specialized optics are disclosed. In one or more embodiments, a disclosed panel for creating a lighted scene comprises a substrate comprising a first surface, a second surface spaced from the first surface, and a plurality of apertures through the first and second surfaces. The panel further comprises an optical lens disposed on the first surface within each of the apertures. Also, the panel comprises a light distribution unit (LDU) comprising a plurality of light sources coupled to the second surface. Further, the panel comprises a bundle of optical fibers coupled to each of the light sources, where each of the optical fibers is in communication with one of the optical lenses for transferring light emitted by the light sources to create the lighted scene.
    Type: Application
    Filed: September 28, 2018
    Publication date: January 23, 2020
    Inventors: Kevin Julian Chang, John Christiaan Beckman, Christopher Michael Cipolla, David D. Chen, Diana Elizabeth Bonilla
  • Publication number: 20200015876
    Abstract: An ablation system comprises: an ablation catheter and a console. The ablation catheter comprises: a shaft including a proximal end, a distal portion and a distal end; an ablation element configured to deliver energy to tissue; and a force maintenance assembly comprising a force maintenance element and configured to control and/or assess contact force between the ablation element and cardiac tissue. The console is configured to operably attach to the ablation catheter and comprises: an energy delivery assembly configured to provide energy to the ablation element. Methods of ablating tissue are also provided.
    Type: Application
    Filed: October 11, 2017
    Publication date: January 16, 2020
    Inventors: Derrick Ren-Yu CHOU, Marcus Frederick JULIAN, Steven Anthony YON, Randell L. WERNETH, Alexander HIGGINS, Ricardo ROMAN, Alexander J. ASCONEGUY, Christoph SCHARF, Dennis O'BRIEN, Rob Andre PESCAR, Ahmed FALAHATPISHEH, Tom ESBECK, Gerald M. STOBBS III, Leo MARIAPPAN, Brandon Pratt Noheaikaika LEE, James Calvin ALLAN, Michael C. OLIVEIRA, Daniel WELSH, R. Maxwell FLAHERTY, J. Christopher FLAHERTY
  • Patent number: 10512392
    Abstract: One embodiment of present invention is a segmented instrument having braking capabilities that includes an elongate body having a plurality of links and a hinge connecting a pair of adjacent links in the plurality of links. There is also brake assembly coupled to each link in the pair of adjacent links and positioned to span the distance between the pair of adjacent links. Another embodiment of the present invention is a segmented instrument having a plurality of links and at least one lockable and articulatable joint positioned to connect a pair of adjacent links in the plurality of links. In addition, the at least one lockable and articulatable joint is adapted and configured to increase the number of frictional surfaces available between the pair of adjacent links. There are also provided methods for controlling a segmented instrument.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: December 24, 2019
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Jay Gurusamy, Carson Jay Shellberger, Christopher A. Julian, Joshua Oeh
  • Patent number: 10491329
    Abstract: A system for transmitting data over a network may include data processed according to a data-redundancy encoding technique such as erasure coding to be transmitted via an unreliable, connectionless transmission protocol, for example user datagram protocol (“UDP”). A transmitting manager may receive a request from an application to transmit data. The transmission manager may select encoding parameters and encode data to be transferred using a data-redundancy encoding technique. The transmission manager may initiate transmission of the encoded data and payload header data may via a network, for example via a network communication stream or protocol stack. A reconstruction manager associated with the receiving node may reconstruct the original data using the received erasure coding data and payload header data. In some embodiments, the receiving node may transmit telemetry data to the erasure coding algorithm.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: November 26, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Melissa Elaine Davis, Jeremy Boynes, Charles Alexander Carman, Paul Derek DeMarco, Mark Noel Kelly, Christopher Allen Suver, Alexander Julian Tribble
  • Publication number: 20190356530
    Abstract: Techniques for improving communications efficiency between pairs of communication nodes running within a computer system are described herein. Potential locations for placing a communication node are evaluated using one or more fitness values wherein the fitness value is based at least in part on one or more system metrics associated with placing a communication node in the potential location. If an improved location is found based on the fitness value, the communication node may be migrated to the new location, thus improving system efficiency.
    Type: Application
    Filed: August 5, 2019
    Publication date: November 21, 2019
    Inventors: Paul William Berg, Christopher Dunn, Alexander Julian Tribble, Tristan Daniel Fries Wilson, Zachary Jared Wiggins
  • Publication number: 20190346203
    Abstract: Described herein are methods and systems for the liquefaction of natural gas to produce a LNG product. The methods and systems use an apparatus for separating a flash gas from a liquefied natural gas (LNG) stream to produce a LNG product and recovering refrigeration from the flash gas. The apparatus includes a shell casing enclosing a heat exchange zone comprising a coil wound heat exchanger, and a separation zone. The heat exchange zone is located above and in fluid communication with the separation zone. Flash gas is separated from the LNG product in the separation zone and flows upwards from the separation zone into the heat exchange zone where refrigeration is recovered from the separated flash gas.
    Type: Application
    Filed: May 11, 2018
    Publication date: November 14, 2019
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Fei Chen, Christopher Michael Ott, Annemarie Ott Weist, Mark Julian Roberts
  • Publication number: 20190262571
    Abstract: A swivel elbow and connector assembly for a patient interface system includes a ring configured to be sealingly secured in an aperture of the patient interface system. The ring includes a first side in an interior of the patient interface system and a second side at an exterior of the patient interface system when the ring is secured in the aperture. The ring also includes a plurality of vents configured to permit flow of gases from the interior to the exterior of the patient interface system. The swivel elbow and connector assembly includes an elbow swivelably secured in the ring. A patient interface system for delivering a flow of breathable gas to a user includes a patient interface structure configured to sealing engage the face of the user. The patient interface structure includes an aperture. A swivel elbow and connector assembly is sealingly secured in the aperture.
    Type: Application
    Filed: May 9, 2019
    Publication date: August 29, 2019
    Inventors: Teck FONG, Stephen GRAY, Adam Francis BARLOW, Robert Thomas BURNHAM, Christopher Scott SKIPPER, David Anthony PIDCOCK, Tumul GUPTA, Damien Julian MAZZONE, Jose Ignacio ROMAGNOLI, Christopher Samuel CULLEN
  • Patent number: 10374866
    Abstract: Techniques for improving communications efficiency between pairs of communication nodes running within a computer system are described herein. Potential locations for placing a communication node are evaluated using one or more fitness values wherein the fitness value is based at least in part on one or more system metrics associated with placing a communication node in the potential location. If an improved location is found based on the fitness value, the communication node may be migrated to the new location, thus improving system efficiency.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: August 6, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Paul William Berg, Christopher Dunn, Alexander Julian Tribble, Tristan Daniel Fries Wilson, Zachary Jared Wiggins
  • Patent number: D862394
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: October 8, 2019
    Assignee: Osram Sylvania Inc.
    Inventors: Alfonso Julian Hernandez, Christopher Anthony Bonner