Patents by Inventor David Doty

David Doty 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).

  • Hydrocarbon and alcohol fuels from variable, renewable energy at very high efficiency
    Publication number: 20110305623
    Abstract: A Renewable Fischer Tropsch Synthesis (RFTS) process is disclosed for producing hydrocarbons and alcohol fuels from wind energy, waste CO2 and water. The process includes (A) electrolyzing water to generate hydrogen and oxygen, (B) generating syngas in a reverse water gas shift (RWGS) reactor, (C) driving the RWGS reaction to the right by condensing water from the RWGS products and separating CO using a CuAlCl4-aromatic complexing method, (D) using a compressor with variable stator nozzles, (E) carrying out the FTS reactions in a high-temperature multi-tubular reactor, (F) separating the FTS products using high-pressure fractional condensation, (G) separating CO2 from product streams for recycling through the RWGS reactor, and (H) using control methods to maintain the temperatures of the reactors, electrolyzer, and condensers at optima that are functions of the flow rate. The RFTS process may also include heat engines, a refrigeration cycle utilizing compressed oxygen, and a dual-source organic Rankine cycle.
    Type: Application
    Filed: August 1, 2011
    Publication date: December 15, 2011
    Applicant: DOTY SCIENTIFIC, INC.
    Inventor: F. David Doty
  • High-temperature dual-source organic Rankine cycle with gas separations
    Patent number: 8046999
    Abstract: In a dual-source organic Rankine cycle (DORC), the condensed and slightly sub-cooled working fluid at near ambient temperature (˜300 K) and at low-side pressure (0.1 to 0.7 MPa) is (1) pumped to high-side pressure (0.5-5 MPa), (2) pre-heated in a low-temperature (LT) recuperator, (3) boiled using a low-grade heat source, (4) super-heated in a high-temperature (HT) recuperator to a temperature close to the expander turbine exhaust temperature using this exhaust vapor enthalpy, (5) further super-heated to the turbine inlet temperature (TIT) using a mid-grade heat source, (6) expanded through a turbine expander to the low-side pressure, (7) cooled through the HT recuperator, (8) cooled through the LT recuperator, (9) mostly liquefied and slightly subcooled in a condenser, and (10) the condensed portion is returned to the pump to repeat this cycle.
    Type: Grant
    Filed: November 25, 2007
    Date of Patent: November 1, 2011
    Assignee: Doty Scientific, Inc.
    Inventor: F David Doty
  • Streaming object instantiation using bookmarks
    Patent number: 7979566
    Abstract: Bookmarking of tokens in a set of streaming tokens, each representing an instantiation instruction or instantiation context. A navigator receives a set of streaming tokens, and provides the tokens to the instantiation manager. However, if the navigator receives an instruction to bookmark a particular token, the navigator buffers the set of streaming instructions at least beginning at the bookmarked token (and possible even earlier if there were prior bookmarks). The navigator replays the set of streaming tokens beginning at a bookmark in response to an instruction from an instantiation manager. The instantiation manager receives the set of streaming tokens. If the instantiation manager is not presently capable of handling the instruction of a particular token, the instantiation manager instructs the navigator to bookmark the particular token.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: July 12, 2011
    Assignee: Microsoft Corporation
    Inventors: John David Doty, Jeffrey C. Schlimmer, Christopher Lee Anderson, Martin James Gudgin
  • DATA FRAMEWORK TO ENABLE RICH PROCESSING OF DATA FROM ANY ARBITRARY DATA SOURCE
    Publication number: 20110099188
    Abstract: Accessing data in a data store at a field granularity. A method includes receiving a query from a user. The query specifies one or more non-unique fields of a record. The method further includes sending the query to a data store to retrieve the fields of the record at a field granularity. The method further includes receiving data for the one or more non-unique fields of the record at a field granularity.
    Type: Application
    Filed: October 23, 2009
    Publication date: April 28, 2011
    Applicant: MICROSOFT CORPORATION
    Inventors: Haroon Ahmed, John David Doty, Donald F. Box, Randy S. Kimmerly
  • NMR CryoMAS probe for high-field wide-bore magnets
    Patent number: 7915893
    Abstract: All critical circuit components, including the sample coils, are located along with the spinner assembly in a region that may be evacuated to high vacuum for thermal insulation and high-voltage operation. A hermetically sealed spinner assembly simultaneously satisfies the requirements of hermeticity, low total emissivity, rf compatibility, spinning performance, magnetic compatibility, and high filling factor by utilizing metal construction except for the central region near the rf sample coils. Hence, it is possible to maintain high vacuum in the region external to the MAS spinner assembly even over a broad range of bearing and drive gas temperatures. A bundle of optical fibers is provided for tachometry for spin rates up to 60 kHz. The use of alumina disc capacitors allows the noise contributions from the most critical capacitors to be reduced to a minor fraction of the total and simplifies high voltage operation.
    Type: Grant
    Filed: November 18, 2007
    Date of Patent: March 29, 2011
    Assignee: Doty Scientific, Inc.
    Inventors: Siddarth Shevgoor, F David Doty
  • Catheter-based, dual balloon photopolymerization system
    Patent number: 7912539
    Abstract: A system for applying a polymer (hydrogel) to the inner surface of a vessel by photopolymerization includes a catheter having a first inflatable member and a guidewire having a second inflatable member. The catheter has an extended tip distal to the first inflatable member that includes multiple perfusion ports. A light emission coil is disposed on the extended tip with individual coil loops interspaced with the perfusion ports. In a method, the guidewire is delivered to a treatment site within a vessel. The catheter is delivered to the treatment site over the guidewire. The inflatable members are inflated to form an enclosed treatment space within the vessel. A photoinitiator is delivered to the enclosed treatment space. Excess photoinitiator is flushed from the treatment space, and a prepolymer is delivered. The prepolymer is cured by light delivered by the light emission coil.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: March 22, 2011
    Assignee: Medtronic Vascular, Inc.
    Inventors: David Doty, Feridun Ozdil, Josiah Wilcox, Robret Murray, Prasad Kilari
  • High-temperature dual-source organic Rankine cycle with gas separations
    Publication number: 20100300093
    Abstract: In a dual-source organic Rankine cycle (DORC), the condensed and slightly sub-cooled working fluid at near ambient temperature (˜300 K) and at low-side pressure (0.1 to 0.7 MPa) is (1) pumped to high-side pressure (0.5-5 MPa), (2) pre-heated in a low-temperature (LT) recuperator, (3) boiled using a low-grade heat source, (4) super-heated in a high-temperature (HT) recuperator to a temperature close to the expander turbine exhaust temperature using this exhaust vapor enthalpy, (5) further super-heated to the turbine inlet temperature (TIT) using a mid-grade heat source, (6) expanded through a turbine expander to the low-side pressure, (7) cooled through the HT recuperator, (8) cooled through the LT recuperator, (9) mostly liquefied and slightly subcooled in a condenser, and (10) the condensed portion is returned to the pump to repeat this cycle.
    Type: Application
    Filed: November 25, 2007
    Publication date: December 2, 2010
    Applicant: DOTY SCIENTIFIC, INC.
    Inventor: F. David Doty
  • Hydrocarbon and alcohol fuels from variable, renewable energy at very high efficiency
    Publication number: 20100280135
    Abstract: A Renewable Fischer Tropsch Synthesis (RFTS) process produces hydrocarbons and alcohol fuels from wind energy, waste CO2 and water. The process includes (A) electrolyzing water to generate hydrogen and oxygen, (B) generating syngas in a reverse water gas shift (RWGS) reactor, (C) driving the RWGS reaction to the right by condensing water from the RWGS products and separating CO using a CuAlCl4-aromatic complexing method, (D) using a compressor with variable stator nozzles, (E) carrying out the FTS reactions in a high-temperature multi-tubular reactor, (F) separating the FTS products using high-pressure fractional condensation, (G) separating CO2 from product streams for recycling through the RWGS reactor, and (H) using control methods to maintain temperatures of the reactors, electrolyzer, and condensers at optima that are functions of the flow rate. The RFTS process may also include heat engines, a refrigeration cycle utilizing compressed oxygen, and a dual-source organic Rankine cycle.
    Type: Application
    Filed: March 19, 2008
    Publication date: November 4, 2010
    Applicant: DOTY SCIENTIFIC, INC.
    Inventor: F. David Doty
  • Compact, high-effectiveness, gas-to-gas compound recuperator with liquid intermediary
    Publication number: 20100276119
    Abstract: A liquid-loop compound recuperator is disclosed for high-? heat exchange between a first shell-side fluid stream and a second shell-side fluid stream of similar thermal capacity rates (W/K). The compound recuperator is comprised of at least two fluid-to-liquid (FL) recuperator modules for transfer of heat from a shell-side fluid, usually a gas, to an intermediary tube-side heat transfer liquid (HTL). Each FL module includes a plurality of thermally isolated, serially connected, adjacent exchanger cores inside a pressure vessel. The cores are rows of finned tubes for cross-flow transfer of heat, and they are arranged in series to effectively achieve counterflow exchange between the HTL and the shell-side stream. The HTL may be water, an organic liquid, a molten alloy, or a molten salt.
    Type: Application
    Filed: June 13, 2008
    Publication date: November 4, 2010
    Applicant: DOTY SCIENTIFIC, INC.
    Inventor: F. David Doty
  • Synchronizing transaction ambient state among multiple transaction managers
    Patent number: 7730487
    Abstract: The present invention extends to methods, systems, and computer program products for synchronizing ambient state among multiple transaction managers. A coordinating transaction manager establishes transaction ambient state for an application initiated transaction. The coordinating transaction manager sends and a subordinate transaction manager receives a pointer to an ambient state delegate. The subordinate transaction manager sends a request to invoke the ambient state delegate to the coordinating transaction manager in response to receiving an operation. The coordinating transaction manager invokes the ambient state delegate to format the transaction ambient state for the subordinate transaction manager. The coordinating transaction manager sends and the subordinate transaction manager receives the formatted transaction ambient state such that the subordinate transaction manager can appropriately process the operation within the scope of the transaction.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: June 1, 2010
    Assignee: Microsoft Corporation
    Inventors: William James Carley, James Ernest Johnson, John David Doty, Jonathan Morell Cargille, Kapil Gupta, Max A. Feingold, Michael R. Clark
  • SYSTEM AND METHOD FOR MAPPING A DOMAIN MODELING LANGUAGE TO A RELATIONAL STORE
    Publication number: 20100088685
    Abstract: A method and system for mapping between constructs in a domain modeling language and a relational storage language is provided. A source code authored in a source language is received and a set of constructs in the source code are identified. The set of constructs in the source code are mapped to a set of constructs in a target language. The source code is then compiled into a target code authored in the target language such that one of the source code or target code include a declarative constraint-based and/or order-independent execution model.
    Type: Application
    Filed: March 31, 2009
    Publication date: April 8, 2010
    Applicant: MICROSOFT CORPORATION
    Inventors: Haroon Ahmed, Anthony C. Bloesch, John David Doty, Martin James Gudgin, John Braden Keiser, David Evans Langworthy, Clemens Alden Szyperski
  • INTEGRATION OF RUNTIME ENVIRONMENTS
    Publication number: 20100070983
    Abstract: The integration of two runtimes. The integration may be accomplished via the sharing of all or a portion of the environments of each of the runtimes with each other. For instance, as one runtime executes a particular application, control may be passed at an appropriate point to the second runtime. The second runtime may pass control back to the first runtime at an appropriate time. This passing of control between runtimes may happen perhaps a number of times during the execution of the application. The applications might be expressed entirely declaratively in a manner that integrates both runtimes as the application executes. Thus, the application may take advantage of the strengths of each runtime at the appropriate time.
    Type: Application
    Filed: September 16, 2008
    Publication date: March 18, 2010
    Applicant: Microsoft Corporation
    Inventors: JOHN DAVID DOTY, Geoffrey M. Kizer, Jeffrey C. Schlimmer
  • NMR CryoMAS probe for high-field wide-bore magnets
    Publication number: 20100026302
    Abstract: All critical circuit components, including the sample coils, are located along with the spinner assembly in a region that may be evacuated to high vacuum for thermal insulation and high-voltage operation. A hermetically sealed spinner assembly simultaneously satisfies the requirements of hermeticity, low total emissivity, rf compatibility, spinning performance, magnetic compatibility, and high filling factor by utilizing metal construction except for the central region near the rf sample coils. Hence, it is possible to maintain high vacuum in the region external to the MAS spinner assembly even over a broad range of bearing and drive gas temperatures. A bundle of optical fibers is provided for tachometry for spin rates up to 60 kHz. The use of alumina disc capacitors allows the noise contributions from the most critical capacitors to be reduced to a minor fraction of the total and simplifies high voltage operation.
    Type: Application
    Filed: November 18, 2007
    Publication date: February 4, 2010
    Applicant: DOTY SCIENTIFIC, INC.
    Inventors: F. David Doty, Siddarth Shevgoor
  • Catheter-based, dual coil photopolymerization system
    Patent number: 7653432
    Abstract: A system for applying a polymer (hydrogel) to the inner surface of a vessel by photopolymerization includes an inner catheter received within an outer catheter and a fluid channeling structure mounted on the catheters with its proximal end attached to the outer catheter and its distal end attached to the inner catheter. The fluid channeling structure includes an elastomeric sleeve sandwiched between an inner elastic coil and an outer light emission coil. Light emission coil loops are interspaced with elastic coil loops. The light emission coil has a smaller diameter than the elastic coil, drawing the elastomeric sleeve down between loops of the elastic coil to form a helical channel. The coils and sleeve are stretched to provide a narrowed crossing profile for delivery, and are contracted at a treatment site to form a helical cavity between the sleeve and the vessel wall within which to perform interfacial photopolymerization.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: January 26, 2010
    Assignee: Medtronic Vascular, Inc.
    Inventor: David Doty
  • STREAMING OBJECT INSTANTIATION USING BOOKMARKS
    Publication number: 20090193136
    Abstract: Bookmarking of tokens in a set of streaming tokens, each representing an instantiation instruction or instantiation context. A navigator receives a set of streaming tokens, and provides the tokens to the instantiation manager. However, if the navigator receives an instruction to bookmark a particular token, the navigator buffers the set of streaming instructions at least beginning at the bookmarked token (and possible even earlier if there were prior bookmarks). The navigator replays the set of streaming tokens beginning at a bookmark in response to an instruction from an instantiation manager. The instantiation manager receives the set of streaming tokens. If the instantiation manager is not presently capable of handling the instruction of a particular token, the instantiation manager instructs the navigator to bookmark the particular token.
    Type: Application
    Filed: January 25, 2008
    Publication date: July 30, 2009
    Applicant: Microsoft Corporation
    Inventors: John David Doty, Jeffrey C. Schlimmer, Christopher Lee Anderson, Martin James Gudgin
  • Catheter-Based, Dual Balloon Photopolymerization System
    Publication number: 20090171265
    Abstract: A system for applying a polymer (hydrogel) to the inner surface of a vessel by photopolymerization includes a catheter having a first inflatable member and a guidewire having a second inflatable member. The catheter has an extended tip distal to the first inflatable member that includes multiple perfusion ports. A light emission coil is disposed on the extended tip with individual coil loops interspaced with the perfusion ports. In a method, the guidewire is delivered to a treatment site within a vessel. The catheter is delivered to the treatment site over the guidewire. The inflatable members are inflated to form an enclosed treatment space within the vessel. A photoinitiator is delivered to the enclosed treatment space. Excess photoinitiator is flushed from the treatment space, and a prepolymer is delivered. The prepolymer is cured by light delivered by the light emission coil.
    Type: Application
    Filed: February 2, 2009
    Publication date: July 2, 2009
    Applicant: Medtronic Vascular, Inc.
    Inventors: David Doty, Feridun Ozdil, Josiah Wilcox, Robret Murray, Prasad Kilari
  • Catheter-based, dual balloon photopolymerization system
    Patent number: 7515957
    Abstract: A system for applying a polymer (hydrogel) to the inner surface of a vessel by photopolymerization includes a catheter having a first inflatable member and a guidewire having a second inflatable member. The catheter has an extended tip distal to the first inflatable member that includes multiple perfusion ports. A light emission coil is disposed on the extended tip with individual coil loops interspaced with the perfusion ports. In a method, the guidewire is delivered to a treatment site within a vessel. The catheter is delivered to the treatment site over the guidewire. The inflatable members are inflated to form an enclosed treatment space within the vessel. A photoinitiator is delivered to the enclosed treatment space. Excess photoinitiator is flushed from the treatment space, and a prepolymer is delivered. The prepolymer is cured by light delivered by the light emission coil.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: April 7, 2009
    Assignee: Medtronic Vascular, Inc.
    Inventors: David Doty, Feridun Ozdil, Josiah Wilcox, Robret Murray, Prasad Kilari
  • Interface infrastructure for creating and interacting with web services
    Patent number: 7512957
    Abstract: A web services namespace pertains to an infrastructure for enabling creation of a wide variety of applications. The infrastructure provides a foundation for building message-based applications of various scale and complexity. The infrastructure or framework provides APIs for basic messaging, secure messaging, reliable messaging and transacted messaging. In some embodiments, the associated APIs are factored into a hierarchy of namespaces in a manner that balances utility, usability, extensibility and versionability.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: March 31, 2009
    Assignee: Microsoft Corporation
    Inventors: Shy Cohen, Geary L. Eppley, Douglas M. Purdy, James E. Johnson, Stephen J. Millet, Stephen T. Swartz, Vijay K. Gajjala, Aaron Abraham Stern, Alexander Martin DeJarnatt, Alfred M. Lee, IV, Anand Rjagopalan, Anastasios Kasiolas, Chaitanya D. Upadhyay, Christopher G. Kaler, Craig Andrew Critchley, David Edwin Levin, David Owen Driver, David Wortendyke, Douglas A. Walter, Elliot Lee Waingold, Erik Bo Christensen, Erin P. Honeycutt, Eugene Shvets, Evgeny Osovetsky, Giovanni M. Della-Libera, Jesus Ruiz-Scougall, John David Doty, Jonathan T. Wheeler, Kapil Gupta, Kenneth David Wolf, Krishnan Srinivasan, Lance E. Olson, Matthew Thomas Tavis, Mauro Ottaviani, Max Attar Feingold, Michael James Coulson, Michael Jon Marucheck, Michael Steven Vernal, Michael Thomas Dice, Mohamed-Hany Essam Ramadan, Mohammad Makarechian, Natasha Harish Jethanandani, Richard Dievendorff, Richard Douglas Hill, Ryan Thomas Sturgell, Saurab Nog, Scott Christopher Seely, Serge Sverdlov, Siddhartha Puri, Sowmyanarayanan K. Srinivasan, Stefan Batres, Stefan Harrington Pharies, Tirunelveli Vishwanath, Tomasz Janczuk, Uday S. Hegde, Umesh Madan, Vaithialingam B. Balayogan, Vipul Arunkant Modi, Yaniv Pessach, Yasser Shohoud
  • NMR MAS probe with cryogenically cooled critical circuit components
    Patent number: 7498812
    Abstract: An NMR probe contains a metallic dewar for use in a high field magnet, the dewar characterized as having a major fraction of its inner wall made from an alloy whose weight composition includes at least 70% copper, less than 20% zinc, less than 10% nickel, less than 8% Cr, less than 4% Pb, less than 0.15% iron, less than 0.15% cobalt, and at least 3% from the set comprised of tin, silicon, aluminum, and chromium, and said inner wall further characterized as being plated with a pure metal on at least one surface.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: March 3, 2009
    Assignee: Doty Scientific, Inc.
    Inventor: F. David Doty
  • Catheter-Based, Dual Coil Photopolymerization System
    Publication number: 20090018487
    Abstract: A system for applying a polymer (hydrogel) to the inner surface of a vessel by photopolymerization includes an inner catheter received within an outer catheter and a fluid channeling structure mounted on the catheters with its proximal end attached to the outer catheter and its distal end attached to the inner catheter. The fluid channeling structure includes an elastomeric sleeve sandwiched between an inner elastic coil and an outer light emission coil. Light emission coil loops are interspaced with elastic coil loops. The light emission coil has a smaller diameter than the elastic coil, drawing the elastomeric sleeve down between loops of the elastic coil to form a helical channel. The coils and sleeve are stretched to provide a narrowed crossing profile for delivery, and are contracted at a treatment site to form a helical cavity between the sleeve and the vessel wall within which to perform interfacial photopolymerization.
    Type: Application
    Filed: September 23, 2008
    Publication date: January 15, 2009
    Applicant: Medtronic Vascular, Inc.
    Inventor: David Doty