Patents by Inventor David Stiles

David Stiles 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: 20150300159
    Abstract: An electro-acoustic system for downhole telemetry employs a series of communications nodes spaced along a string of casing within a wellbore. In one embodiment the nodes are placed within the cement sheath surrounding the joints of casing and allow wireless communication between transceivers residing within the communications nodes and a receiver at the surface. The transceivers provide node-to-node communication up a wellbore at high data transmission rates for data indicative of cement sheath integrity. A method of evaluating a cement sheath in a wellbore uses a plurality of data transmission nodes situated along the casing string which send signals to a receiver at the surface. The signals are then analyzed.
    Type: Application
    Filed: December 18, 2013
    Publication date: October 22, 2015
    Inventors: David A. STILES, Stuart R. KELLER, Timothy I. MORROW, Mark M. DISKO, Max DEFFENBAUGH
  • Publication number: 20150292320
    Abstract: A system for downhole telemetry employs a series of communications nodes spaced along a tubular body such as a pipe in a wellbore. The nodes allow for hybrid wired-and-wireless communication between one or more sensors residing at the level of a subsurface formation, and a receiver at the surface. The communications nodes employ electro-acoustic transducers that provide for node-to-node communication partially up a wellbore, and then high speed data transmission using a wire for the remaining distance up to the surface. A method of transmitting data in a wellbore uses a plurality of data transmission nodes situated along a tubular body to deliver wireless signals partially up the wellbore, and then wired signals the remaining distance.
    Type: Application
    Filed: December 18, 2013
    Publication date: October 15, 2015
    Inventors: John M. Lynk, Timothy I. Morrow, Stuart R. Keller, Max Deffenbaugh, Mark M. Disko, David A. Stiles
  • Publication number: 20150292321
    Abstract: A system for downhole telemetry is provided herein. The system employs a series of communications nodes spaced along a tubular body in a wellbore. Each communications node is associated with a sensor that senses data indicative of a formation condition or a wellbore parameter along a subsurface formation. The data is stored in memory until a logging tool is run into the wellbore. The data is transmitted from the respective communications nodes to a receiver in the logging tool. The data is then transferred to the surface. A method of transmitting data in a wellbore is also provided herein. The method uses a logging tool to harvest data in a wellbore from a plurality of sensor communications nodes.
    Type: Application
    Filed: December 18, 2013
    Publication date: October 15, 2015
    Inventors: Stuart R. KELLER, Timothy I. MORROW, James S. BURNS, Max DEFFENBAUGH, Mark M. DISKO, David A. STILES
  • Publication number: 20150285937
    Abstract: An electro-acoustic system for downhole telemetry employs a series of communications nodes spaced along a string of casing within a wellbore. The nodes allow wireless communication between transceivers residing within the communications nodes and a receiver at the surface. The transceivers provide node-to-node communication of data indicating elastic waves generated as a result of the formation of subsurface fractures. The data is processed which generates a map of fracture geometry. A method of evaluating fracture geometry in a subsurface formation uses a plurality of data transmission nodes situated along the casing string which send signals to a receiver at the surface. The signals are analyzed which generates a subsurface map.
    Type: Application
    Filed: December 18, 2013
    Publication date: October 8, 2015
    Inventors: Stuart R. Keller, Timothy I. Morrow, Max Deffenbaugh, Mark M. Disko, David A. Stiles
  • Publication number: 20150285066
    Abstract: A system for downhole telemetry employs a series of communications nodes spaced along a tubular body such as a pipe in a wellbore. The nodes allow hybrid wired-and-wireless communication between one or more sensors residing at the level of a subsurface formation and a receiver at the surface. The nodes employ electro-acoustic transducers providing node-to-node communication up a wellbore at high data transmission rates. A method of transmitting data in a wellbore uses a plurality of data transmission nodes situated along a tubular body to deliver an alternating electrical and acoustic transmission of data along the wellbore.
    Type: Application
    Filed: December 18, 2013
    Publication date: October 8, 2015
    Inventors: Stuart R. KELLER, Timothy I. ROW, Max DEFFENBAUGH, Mark M. DISKO, David A. STILES
  • Publication number: 20150275657
    Abstract: A system for downhole telemetry is provided herein. The system employs a series of communications nodes spaced along a tubular body either above or below ground, such as in a wellbore. The nodes allow for wireless communication between one or more sensors residing at the level of a subsurface formation or along a pipeline, and a receiver at the surface. The communications nodes employ electro-acoustic transducers that provide for node-to-node communication along the tubular body at high data transmission rates. A method of transmitting data in a wellbore is also provided herein. The method uses a plurality of data transmission nodes situated along a tubular body to accomplish a wireless transmission of data along the wellbore using acoustic energy.
    Type: Application
    Filed: December 18, 2013
    Publication date: October 1, 2015
    Inventors: Max Deffenbaugh, Stuart R. Keller, David A. Stiles, Timothy I. Morrow, Mark M. Disko, Henry Alan Wolf, Katie M. Walker, Scott W. Clawson
  • Patent number: 9020224
    Abstract: A system and method for determining, planning, and/or administering a therapy of a selected material from a catheter to a selected specific region of an anatomy is disclosed. The catheter can be used to deliver a drug to the patient to achieve a volume of efficacy (VOE) within a selected target, region, or volume. The drug delivered can be used for treating at least a symptom in the patient.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: April 28, 2015
    Assignee: Medtronic, Inc.
    Inventors: David Stiles, Jeffrey P. Bodner, William F. Kaemmerer
  • Patent number: 9008752
    Abstract: A contrast agent can be infused into a subject and a determination can be made of a VOD and/or a concentration gradient of the contrast agent in the VOD. The contrast agent can be infused in the subject using selected parameters. A correlation to a selected material can be made to determine parameters for infusion the selected material.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: April 14, 2015
    Assignee: Medtronic, Inc.
    Inventor: David Stiles
  • Publication number: 20140171900
    Abstract: A combination material can be infused into a subject and a determination can be made of a VOD and/or a convection gradient of a liquid material portion in the VOD. The combination material can be infused in the subject using selected parameters. A correlation of data relating to the liquid material can be made to a selected material to determine parameters for infusion the selected material.
    Type: Application
    Filed: December 14, 2012
    Publication date: June 19, 2014
    Applicant: Medtronic, Inc.
    Inventor: David STILES
  • Publication number: 20140171781
    Abstract: A contrast agent can be infused into a subject and a determination can be made of a VOD and/or a concentration gradient of the contrast agent in the VOD. The contrast agent can be infused in the subject using selected parameters. A correlation to a selected material can be made to determine parameters for infusion the selected material.
    Type: Application
    Filed: December 14, 2012
    Publication date: June 19, 2014
    Applicant: Medtronic, Inc.
    Inventor: David STILES
  • Publication number: 20130287275
    Abstract: A system and method for determining, planning, and/or administering a therapy of a selected material from a catheter to a selected specific region of an anatomy is disclosed. The catheter can be used to deliver a drug to the patient to achieve a volume of efficacy (VOE) within a selected target, region, or volume. The drug delivered can be used for treating at least a symptom in the patient.
    Type: Application
    Filed: December 14, 2012
    Publication date: October 31, 2013
    Applicant: Medtronic, Inc.
    Inventors: David Stiles, Jeffrey P. Bodner, William F. Kaemmerer
  • Patent number: 8335552
    Abstract: When delivering a therapy to a patient, such as a drug to a brain of a patient, an optimized delivery point can be selected. The optimized point can be based on physics, physiology, and pharmacology. The optimized point can be used for planning a surgical navigation procedure.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: December 18, 2012
    Assignee: Medtronic, Inc.
    Inventor: David Stiles
  • Patent number: 7908210
    Abstract: Embodiments of systems and methods are disclosed that manage transactions and communication between car dealers and lenders. In one embodiment, the system lessens risks for lenders and makes relationships with dealers safer and easier to administer. In one embodiment, a dealer may utilize the system to manage its inventory, obtain and manage credit history information about potential customers, help customers apply for credit, transact credit applications and credit approvals with various lenders, submit applications to multiple lenders, select from among the accepting lenders, and manage forms used to complete a transaction.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: March 15, 2011
    Assignee: Finance Express, LLC
    Inventors: David Lynn Huber, Frederick Johnson Morgan, James Madison McCurry, Jeffrey Madison McCurry, David Stiles Moderi
  • Publication number: 20100240986
    Abstract: When delivering a therapy to a patient, such as a drug to a brain of a patient, an optimized delivery point can be selected. The optimized point can be based on physics, physiology, and pharmacology. The optimized point can be used for planning and a surgical navigation procedure.
    Type: Application
    Filed: April 28, 2009
    Publication date: September 23, 2010
    Applicant: MEDTRONIC, INC.
    Inventor: David Stiles
  • Patent number: 7460554
    Abstract: A method and apparatus for the incorporation of any size and location of concatenated SONET frames, which carry packet data, in an SONET signal are described. In an embodiment, a method includes receiving packet data. Additionally, the method includes concatenating the packet data into a Time Division Multiplexing (TDM) Synchronous Optical Network (SONET) signal. The concatenation can be across any locations within the TDM SONET signal, and a size of the concatenation can be in increments of single SONET frames. The method also includes transmitting the TDM SONET signal having the concatenated packet data.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: December 2, 2008
    Assignee: Redback Networks Inc.
    Inventors: Anurag Nigam, David Stiles
  • Patent number: 7324539
    Abstract: A method and apparatus for processing channelized and unchannelized data within a signal are described. In one embodiment, a method comprises receiving in a network element, data packets within a number of channels, wherein each of the number of channels are channelized or unchannelized, processing, in a protocol engine within the network element, the data packets within the number of channels that are channelized, and processing, in the protocol engine within the network element, the data packets within the number of channels that are unchannelized.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: January 29, 2008
    Assignee: Redback Networks Inc.
    Inventors: Ramesh Duvvuru, Felix Chow, Ricky See, Sharath Narahari, David Stiles
  • Patent number: 7272157
    Abstract: A method and apparatus for the incorporation of any size and location of concatenated SONET frames, which carry packet data, in an SONET signal are described. In an embodiment, a method includes receiving packet data. Additionally, the method includes concatenating the packet data into a Time Division Multiplexing (TDM) Synchronous Optical Network (SONET) signal. The concatenation can be across any locations within the TDM SONET signal, and a size of the concatenation can be in increments of single SONET frames. The method also includes transmitting the TDM SONET signal having the concatenated packet data.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: September 18, 2007
    Assignee: Redback Networks Inc.
    Inventors: Anurag Nigam, David Stiles
  • Patent number: 7209436
    Abstract: A method and apparatus for variable rate pipes is described. In one embodiment of the invention, a computer implemented method comprises allocating a pipe from part of a working channel and at least part of a protecting channel of a span of a bi-directional line switched ring (BLSR), the pipe having a bandwidth, transmitting a set of layer 2/3 traffic in the pipe, and reducing the pipe's bandwidth when a failure occurs in the ring.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: April 24, 2007
    Assignee: Redback Networks Inc.
    Inventors: Siegfried Luft, Gerald Neufeld, David Stiles
  • Publication number: 20070017717
    Abstract: A drive system is provided for an off-road vehicle that moves across unprepared terrain such as snow, tundra or ice. A plurality of n flexible airbag tires are in contact with the terrain and are driven by n top drive rollers carried by the chassis of the vehicle which frictionally engage and drive the airbag tires. A novel electromotive drive system is provided which includes a plurality of n electromotive drive motors connected to each of the n top drive rollers. Separate controllers having speed sensors and torque sensors are provided for sensing and controlling the instantaneous rotational speed and torque of each independent electromotive drive motor. A central, cab mounted computer based controller responsive to the independent motor controllers and various other inputs controls the instantaneous speed and torque of each of the individual drive motors.
    Type: Application
    Filed: May 10, 2006
    Publication date: January 25, 2007
    Inventors: William Kuper, Donald Tunks, David Stiles
  • Patent number: 7050395
    Abstract: A method and apparatus for disabling a data interface between network element data processing units is described. In one embodiment, the method includes transmitting data frames over a data connection through an interface of a first network element data processing unit to a second network element data processing unit, disabling the interface, receiving an interface disable signal, completing transmission of data frames currently being transmitted, upon receiving an interface disable signal, disabling the interface, the disabling not causing data loss, receiving acknowledgements over the data connection, and enabling the data connection after receiving a number of acknowledgements.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: May 23, 2006
    Assignee: Redback Networks Inc.
    Inventors: Felix Chow, David Stiles