Patents by Inventor Warren Erickson

Warren Erickson 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: 10732651
    Abstract: Methods and systems facilitate network communications between a wireless network-connected thermostat and a cloud-based management server in a manner that promotes reduced power usage and extended service life of an energy-storage device of the thermostat, while at the same time accomplishing timely data transfer between the thermostat and the cloud-based management server for suitable and time-appropriate control of an HVAC system. The thermostat further comprises powering circuitry configured to: extract electrical power from one or more HVAC control wires in a manner that does not require a “common” wire; supply electrical power for thermostat operation; recharge the energy-storage device (if needed) using any surplus extracted power; and discharge the energy-storage device to assist in supplying electrical power for thermostat operation during intervals in which the extracted power alone is insufficient for thermostat operation.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: August 4, 2020
    Assignee: Google LLC
    Inventors: Andrea Mucignat, Oliver Steele, Senthilvasan Supramaniam, Osborne Hardison, Richard J. Schultz, Daniel A. Warren, Hugo Fiennes, Jonathan A. Dutra, David Bell, Anthony M. Fadell, Matthew L. Rogers, Ian C. Smith, Grant M. Erickson, Edwin H. Satterthwaite, Joseph E. Palmer
  • Patent number: 10496661
    Abstract: Systems, methods, and non-transitory computer-readable media can provide a graphical user interface that includes at least one set of content items that are available for curation, wherein at least one content item in the set is obtained from a social networking system, and wherein each content item is associated with at least one option for exporting the content item. A selection of the option for exporting a first content item, from the set, to a content provider can be received. The first content item can be provided to the content provider for presentation.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: December 3, 2019
    Assignee: Facebook, Inc.
    Inventors: Robert James Morgan, Mark David Erickson, Robert Warren Gifford, Satish Chander Bhatti
  • Publication number: 20190344897
    Abstract: An assembly for use with an aerodynamic decelerator for an aerial vehicle, such as a parachute, the assembly having a lead line with a first end and a second end, with the first end structured for attachment to the aerial vehicle, and an energy absorbing assembly having a first end attached to the second end of the shock cord and a second end structured for attachment to the parachute, the energy absorbing assembly in one implementation including an elongate flexible filament having first and second ends attached, the first end attached to the lead line and the second end attached to a decelerator. The first and second ends are attached to each other with rip-stitching, the first and second ends structured to break apart from each other in response to a load exerted by deployment of the parachute.
    Type: Application
    Filed: May 8, 2019
    Publication date: November 14, 2019
    Inventors: Warren Reasner, Alan Erickson
  • Patent number: 10348202
    Abstract: A modular dc-dc boost converter system is provided that can substantially improve efficiency over a wide range of input and output voltages. The system includes three modules: a buck module, a boost module, and a dc transformer module. These modules are interconnected such that the system output voltage is equal to the sum of the output voltages of adc-dc converter module and a dc transformer module. Depending on the operating point, one or more modules may operate in passthrough mode, leading to substantially reduced ac losses. The required capacitor size and the transistor voltage ratings are also substantially reduced, relative to a conventional single dc-dc boost converter operating at the same input and output voltages.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: July 9, 2019
    Assignee: The Regents of the University of Colorado, a body corporate
    Inventors: Hua Chen, Robert Warren Erickson, Dragan Maksimovic, Tadakazu Harada
  • Patent number: 9887627
    Abstract: The disclosed embodiments and principles provide a way to integrate high-efficiency, low-profile power electronics with localized maximum power point tracking (MPPT) into a rooftop shingle-based photovoltaic power system. DC-DC power converters having a height, or profile, as low as ¼ inch for a 200 W power output, are able to be included in a building-integrated photovoltaic (BIPV) roof shingle. The DC-DC power converters increase the relatively low voltage produced by two rows of series-connected photovoltaic shingles, each including photovoltaic cells, to a high voltage used by a DC-AC inverter. For example, DC-DC power converter increases the voltage produced by two rows of series-connected photovoltaic shingles from several tens of volts to approximately 400 volts. Thus, the DC-DC power converters provide a large voltage step-up using a low profile and with very high efficiency.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: February 6, 2018
    Assignees: THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE, DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Robert Warren Erickson, Jr., Stephen Pisklak, Timothy Plum
  • Publication number: 20180026540
    Abstract: A modular dc-dc boost converter system is provided that can substantially improve efficiency over a wide range of input and output voltages. The system includes three modules: a buck module, a boost module, and a dc transformer module. These modules are interconnected such that the system output voltage is equal to the sum of the output voltages of adc-dc converter module and a dc transformer module. Depending on the operating point, one or more modules may operate in passthrough mode, leading to substantially reduced ac losses. The required capacitor size and the transistor voltage ratings are also substantially reduced, relative to a conventional single dc-dc boost converter operating at the same input and output voltages.
    Type: Application
    Filed: April 3, 2017
    Publication date: January 25, 2018
    Inventors: Hua Chen, Robert Warren Erickson, Dragan Maksimovic, Tadakazu Harada
  • Patent number: 9614442
    Abstract: A modular dc-dc boost converter system is provided that can substantially improve efficiency over a wide range of input and output voltages. The system includes three modules: a buck module, a boost module, and a dc transformer module. These modules are interconnected such that the system output voltage is equal to the sum of the output voltages of adc-dc converter module and a dc transformer module. Depending on the operating point, one or more modules may operate in passthrough mode, leading to substantially reduced ac losses. The required capacitor size and the transistor voltage ratings are also substantially reduced, relative to a conventional single dc-dc boost converter operating at the same input and output voltages.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: April 4, 2017
    Assignee: The Regents of the University of Colorado, A Body Corporate
    Inventors: Hua Chen, Robert Warren Erickson, Jr., Dragan Maksimovic, Tadakazu Harada
  • Publication number: 20150303815
    Abstract: A modular dc-dc boost converter system is provided that can substantially improve efficiency over a wide range of input and output voltages. The system includes three modules: a buck module, a boost module, and a dc transformer module. These modules are interconnected such that the system output voltage is equal to the sum of the output voltages of adc-dc converter module and a dc transformer module. Depending on the operating point, one or more modules may operate in passthrough mode, leading to substantially reduced ac losses. The required capacitor size and the transistor voltage ratings are also substantially reduced, relative to a conventional single dc-dc boost converter operating at the same input and output voltages.
    Type: Application
    Filed: April 16, 2015
    Publication date: October 22, 2015
    Inventors: Hua Chen, Robert Warren Erickson, JR., Dragan Maksimovic, Tadakazu Harada
  • Publication number: 20130062958
    Abstract: The disclosed embodiments and principles provide a way to integrate high-efficiency, low-profile power electronics with localized maximum power point tracking (MPPT) into a rooftop shingle-based photovoltaic power system. DC-DC power converters having a height, or profile, as low as ¼ inch for a 200 W power output, are able to be included in a building-integrated photovoltaic (BIPV) roof shingle. The DC-DC power converters increase the relatively low voltage produced by two rows of series-connected photovoltaic shingles, each including photovoltaic cells, to a high voltage used by a DC-AC inverter. For example, DC-DC power converter increases the voltage produced by two rows of series-connected photovoltaic shingles from several tens of volts to approximately 400 volts. Thus, the DC-DC power converters provide a large voltage step-up using a low profile and with very high efficiency.
    Type: Application
    Filed: May 27, 2011
    Publication date: March 14, 2013
    Inventors: Robert Warren Erickson, JR., Stephen Pisklak, Timothy Plum
  • Publication number: 20120042588
    Abstract: The disclosed embodiments increase the power generated by a photovoltaic (PV) array, when the PV panels within the PV array are not uniformly illuminated or oriented or when PV panels are mismatched (e.g., have varying performance characteristics) and/or operate at non-uniform temperatures. It also provides simpler interconnection and wiring of the elements (e.g., PV panels) of the array. A dc-dc converter comprised of a DC transformer is coupled to each PV panel in a photovoltaic array to generate an increased dc voltage from a lower dc voltage produced by the PV panel. The outputs of the dc-dc converters are connected in parallel to a dc bus, which distributes the resulting voltage. As a result, the energy generated by the PV array is increased, the costs of system design and installation are reduced, and it becomes feasible to install PV arrays in new locations such as on gabled or non-planar roofs.
    Type: Application
    Filed: May 10, 2010
    Publication date: February 23, 2012
    Applicant: The Regents of the University of Colorado
    Inventor: Robert Warren Erickson, JR.
  • Patent number: 7048724
    Abstract: An apparatus and method for draining fluid from a patient. A drainage line is connected to a vacuum bottle. The vacuum is transferred into the drainage line by piercing a seal over the bottle mouth. The indicator in the form of a collapsible bulb or other deformable element confirms the presence of the vacuum at the time of use.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: May 23, 2006
    Assignee: Denver Biomedicals, Inc.
    Inventors: Phillip Grossman, Warren Erickson, Paul Burek, Bonnie Vivian
  • Publication number: 20040116902
    Abstract: An apparatus and method for draining fluid from a patient. A drainage line is connected to a vacuum bottle. The vacuum is transferred into the drainage line by piercing a seal over the bottle mouth. The indicator in the form of a collapsible bulb or other deformable element confirms the presence of the vacuum at the time of use.
    Type: Application
    Filed: December 17, 2002
    Publication date: June 17, 2004
    Inventors: Phillip Grossman, Warren Erickson, Paul Burek, Bonnie Vivian
  • Patent number: 6159176
    Abstract: An improved ultrasonic surgical instrument is disclosed having a design that extends horn or tip life and minimizes instrument breakage and disintegration during use. The instrument comprises an ultrasonic tip having a distal working end and a metal sheath around the tip; the tip further having projections located in the vicinity of nodal points near the tip working end, said tip radially extending from the tip towards the sheath so as to provide the tip with radial inward support. The instrument can further comprise said tip with a substantially flat or convex end and said sheath with an inwardly projecting portion located distally of said tip projection and extending sufficiently radially inward so as to capture the tip with its projection should a tip break occur.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: December 12, 2000
    Assignee: Sonics & Materials Inc.
    Inventors: Alan Broadwin, Andrew Rushton, Warren Erickson, Daniel Grise