Patents by Inventor Benjamin Hellweg

Benjamin Hellweg 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: 20140032397
    Abstract: A computer-implemented, real-estate program identifying real-estate properties of interest to prospective tenants and investors and providing composite price information including purchase and non-purchase-related expenses about lease-to-purchase options.
    Type: Application
    Filed: October 25, 2012
    Publication date: January 30, 2014
    Applicant: HYPERION HOMES LLC
    Inventors: WILLIAM J. YOUNG, BENJAMIN HELLWEG
  • Patent number: 8277975
    Abstract: The effective ionic conductivity in a composite structure is believed to decrease rapidly with volume fraction. A system, such as a bipolar device or energy storage device, has structures or components in which the diffusion length or path that electrodes or ions must traverse is minimized and the interfacial area exposed to the ions or electrons is maximized. The device includes components that can be reticulated or has a reticulated interface so that an interface area can be increased. The increased interfacial perimeter increases the available sites for reaction of ionic species. Many different reticulation patterns can be used. The aspect ratio of the reticulated features can be varied. Such bipolar devices can be fabricated by a variety of methods or procedures. A bipolar device having structures of reticulated interface can be tailored for the purposes of controlling and optimizing charge and discharge kinetics.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: October 2, 2012
    Assignee: Massachusetts Intitute of Technology
    Inventors: Yet-Ming Chiang, Benjamin Hellweg
  • Patent number: 8148009
    Abstract: The effective ionic conductivity in a composite structure is believed to decrease rapidly with volume fraction. A system, such as a bipolar device or energy storage device, has structures or components in which the diffusion length or path that electrodes or ions must traverse is minimized and the interfacial area exposed to the ions or electrons is maximized. In some embodiments, electrodes comprising a plurality of channels are provided, wherein the electrodes are constructed and arranged to allow diffusion of an ionic species from an electrolyte to a surface thereof. The device includes components that can be reticulated or has a reticulated interface so that an interface area can be increased. The increased interfacial perimeter increases the available sites for reaction of ionic species. The aspect ratio of the reticulated features can be varied. Such bipolar devices can be fabricated by a variety of methods or procedures.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: April 3, 2012
    Assignee: Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, Benjamin Hellweg
  • Publication number: 20110070489
    Abstract: The effective ionic conductivity in a composite structure is believed to decrease rapidly with volume fraction. A system, such as a bipolar device or energy storage device, has structures or components in which the diffusion length or path that electrodes or ions must traverse is minimized and the interfacial area exposed to the ions or electrons is maximized. The device includes components that can be reticulated or has a reticulated interface so that an interface area can be increased. The increased interfacial perimeter increases the available sites for reaction of ionic species. Many different reticulation patterns can be used. The aspect ratio of the reticulated features can be varied. Such bipolar devices can be fabricated by a variety of methods or procedures. A bipolar device having structures of reticulated interface can be tailored for the purposes of controlling and optimizing charge and discharge kinetics.
    Type: Application
    Filed: November 30, 2010
    Publication date: March 24, 2011
    Applicant: Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, Benjamin Hellweg
  • Publication number: 20110064999
    Abstract: The effective ionic conductivity in a composite structure is believed to decrease rapidly with volume fraction. A system, such as a bipolar device or energy storage device, has structures or components in which the diffusion length or path that electrodes or ions must traverse is minimized and the interfacial area exposed to the ions or electrons is maximized. The device includes components that can be reticulated or has a reticulated interface so that an interface area can be increased. The increased interfacial perimeter increases the available sites for reaction of ionic species. Many different reticulation patterns can be used. The aspect ratio of the reticulated features can be varied. Such bipolar devices can be fabricated by a variety of methods or procedures. A bipolar device having structures of reticulated interface can be tailored for the purposes of controlling and optimizing charge and discharge kinetics.
    Type: Application
    Filed: July 19, 2010
    Publication date: March 17, 2011
    Applicant: Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, Benjamin Hellweg
  • Publication number: 20110027656
    Abstract: Methods are provided for making bipolar electrochemical devices, such as batteries, using electrophoresis. A bipolar device is assembled by applying a field that creates a physical separation between two active electrode materials, without requiring insertion of a discrete separator film or electrolyte layer.
    Type: Application
    Filed: January 22, 2010
    Publication date: February 3, 2011
    Applicants: Massachusetts Institute of Technology, A123 Systems, Inc.
    Inventors: Yet-Ming Chiang, Benjamin Hellweg, Richard K. Holman, Steven M. Tobias, Dong-Wan Kim, Ryan Craig Wartena
  • Patent number: 7781098
    Abstract: The effective ionic conductivity in a composite structure is believed to decrease rapidly with volume fraction. A system, such as a bipolar device or energy storage device, has structures or components in which the diffusion length or path that electrodes or ions must traverse is minimized and the interfacial area exposed to the ions or electrons is maximized. The device includes components that can be reticulated or has a reticulated interface so that an interface area can be increased. The increased interfacial perimeter increases the available sites for reaction of ionic species. Many different reticulation patterns can be used. The aspect ratio of the reticulated features can be varied. Such bipolar devices can be fabricated by a variety of methods or procedures. A bipolar device having structures of reticulated interface can be tailored for the purposes of controlling and optimizing charge and discharge kinetics.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: August 24, 2010
    Assignee: Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, Benjamin Hellweg
  • Patent number: 7662265
    Abstract: Methods are provided for making bipolar electrochemical devices, such as batteries, using electrophoresis. A bipolar device is assembled by applying a field that creates a physical separation between two active electrode materials, without requiring insertion of a discrete separator film or electrolyte layer.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: February 16, 2010
    Assignees: Massachusetts Institute of Technology, A123 Systems, Inc.
    Inventors: Yet-Ming Chiang, Benjamin Hellweg, Richard K. Holman, Steven M. Tobias, Dong-Wan Kim, Ryan Craig Wartena
  • Patent number: 7553584
    Abstract: The effective ionic conductivity in a composite structure is believed to decrease rapidly with volume fraction. A system, such as a bipolar device or energy storage device, has structures or components in which the diffusion length or path that electrodes or ions must traverse is minimized and the interfacial area exposed to the ions or electrons is maximized. The device includes components that can be reticulated or has a reticulated interface so that an interface area can be increased. The increased interfacial perimeter increases the available sites for reaction of ionic species. Many different reticulation patterns can be used. The aspect ratio of the reticulated features can be varied. Such bipolar devices can be fabricated by a variety of methods or procedures. A bipolar device having structures of reticulated interface can be tailored for the purposes of controlling and optimizing charge and discharge kinetics.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: June 30, 2009
    Assignee: Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, Benjamin Hellweg
  • Publication number: 20080213662
    Abstract: The effective ionic conductivity in a composite structure is believed to decrease rapidly with volume fraction. A system, such as a bipolar device or energy storage device, has structures or components in which the diffusion length or path that electrodes or ions must traverse is minimized and the interfacial area exposed to the ions or electrons is maximized. The device includes components that can be reticulated or has a reticulated interface so that an interface area can be increased. The increased interfacial perimeter increases the available sites for reaction of ionic species. Many different reticulation patterns can be used. The aspect ratio of the reticulated features can be varied. Such bipolar devices can be fabricated by a variety of methods or procedures. A bipolar device having structures of reticulated interface can be tailored for the purposes of controlling and optimizing charge and discharge kinetics.
    Type: Application
    Filed: March 3, 2008
    Publication date: September 4, 2008
    Applicant: Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, Benjamin Hellweg
  • Publication number: 20050272214
    Abstract: Methods are provided for making bipolar electrochemical devices, such as batteries, using electrophoresis. A bipolar device is assembled by applying a field that creates a physical separation between two active electrode materials, without requiring insertion of a discrete separator film or electrolyte layer.
    Type: Application
    Filed: April 18, 2005
    Publication date: December 8, 2005
    Applicants: Massachusetts Institute of Technology, A123 Systems
    Inventors: Yet-Ming Chiang, Benjamin Hellweg, Richard Holman, Steven Tobias, Dong-Wan Kim, Ryan Wartena
  • Publication number: 20030082446
    Abstract: The effective ionic conductivity in a composite structure is believed to decrease rapidly with volume fraction. A system, such as a bipolar device or energy storage device, has structures or components in which the diffusion length or path that electrodes or ions must traverse is minimized and the interfacial area exposed to the ions or electrons is maximized. The device includes components that can be reticulated or has a reticulated interface so that an interface area can be increased. The increased interfacial perimeter increases the available sites for reaction of ionic species. Many different reticulation patterns can be used. The aspect ratio of the reticulated features can be varied. Such bipolar devices can be fabricated by a variety of methods or procedures. A bipolar device having structures of reticulated interface can be tailored for the purposes of controlling and optimizing charge and discharge kinetics.
    Type: Application
    Filed: October 22, 2001
    Publication date: May 1, 2003
    Inventors: Yet-Ming Chiang, Benjamin Hellweg