Patents by Inventor Dennis Callahan

Dennis Callahan 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: 11362228
    Abstract: A space-based solar power station, a power generating satellite module and/or a method for collecting solar radiation and transmitting power generated using electrical current produced therefrom is provided. Each solar power station includes a plurality of satellite modules. The plurality of satellite modules each include a plurality of modular power generation tiles including a photovoltaic solar radiation collector, a power transmitter and associated control electronics. Numerous embodiments relate to efficient power generation tiles. In one embodiment, an efficient power generation tile includes: at least one photovoltaic material; and at least one concentrator that redirects incident solar radiation towards a photovoltaic material such that the photovoltaic material experiences a greater solar flux relative to the case where the photovoltaic material experiences unaltered solar radiation.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: June 14, 2022
    Assignee: California Institute of Technology
    Inventors: Harry A. Atwater, Sergio Pellegrino, Seyed Ali Hajimiri, Jeffrey P. Bosco, Dennis Callahan, Emily C. Warmann
  • Patent number: 10992253
    Abstract: Compactable power generation arrays are provided. The compactable power generation arrays may include a structural substrate body having an array of solar concentrators configured to receive and re-direct solar radiation onto a plurality of photovoltaic (PV) cells. In many other embodiments the PV cells may be disposed upon a back surface of each of the solar concentrators such that an adjacent solar concentrator is configured to re-direct solar radiation onto the PV cell disposed on the back surface of the adjacent solar concentrator.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: April 27, 2021
    Assignee: California Institute of Technology
    Inventors: Harry A. Atwater, Sergio Pellegrino, Seyed Ali Hajimiri, Emily C. Warmann, Dennis Callahan, Jeffrey P. Bosco
  • Patent number: 10614413
    Abstract: Provided is a computer-implemented method for product management The method can include obtaining user Identification information from a user, wherein the identification code is associated with a financial account, of the user; validating, by a processor, that the identification information is authentic based on registration information that was previously received; providing first access signal to a locking mechanism of a locking enclosure to unlock the locking mechanism based on the validating, wherein the locking enclosure securely stores a purchasable product; obtaining product identification information from a scan of a bar code associated with the product providing the product information that was obtained to be rendered on a display; receiving an indication from the user that the product information is correct; and providing a second access signal to the locking mechanism to lock the locking mechanism based on the indication that was received.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: April 7, 2020
    Assignee: LIFE TECHNOLOGIES CORPORATION
    Inventors: Justin Curry, Darren Thierry, Michael Dennis Callahan, Mark Cunningham, Richard Waight
  • Patent number: 10144533
    Abstract: A space-based solar power station, a power generating satellite module and/or a method for collecting solar radiation and transmitting power generated using electrical current produced therefrom is provided. Each solar power station includes a plurality of satellite modules. The plurality of satellite modules each include a plurality of modular power generation tiles including a photovoltaic solar radiation collector, a power transmitter and associated control electronics. The power transmitters can be coordinated as a phased array and the power generated by the phased array is transmitted to one or more power receivers to achieve remote wireless power generation and delivery. Each satellite module may be formed of a compactable structure capable of reducing the payload area required to deliver the satellite module to an orbital formation within the space-based solar power station.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: December 4, 2018
    Assignee: California Institute of Technology
    Inventors: Harry A. Atwater, Seyed Ali Hajimiri, Sergio Pellegrino, Behrooz Abiri, Florian Bohn, Jeffrey P. Bosco, Dennis Callahan, Emily C. Warmann, Manan Arya, Nicolas Lee, Melanie Delapierre
  • Publication number: 20170337507
    Abstract: Provided is a computer-implemented method for product management The method can include obtaining user Identification information from a user, wherein the identification code is associated with a financial account, of the user; validating, by a processor, that the identification information is authentic based on registration information that was previously received; providing first access signal to a locking mechanism of a locking enclosure to unlock the locking mechanism based on the validating, wherein the locking enclosure securely stores a purchasable product; obtaining product identification information from a scan of a bar code associated with the product providing the product information that was obtained to be rendered on a display; receiving an indication from the user that the product information is correct; and providing a second access signal to the locking mechanism to lock the locking mechanism based on the indication that was received.
    Type: Application
    Filed: October 23, 2015
    Publication date: November 23, 2017
    Inventors: Justin CURRY, Darren THIERRY, Michael Dennis CALLAHAN, Mark CUNNINGHAM, Richard WAIGHT
  • Patent number: 9825193
    Abstract: Photovoltaic structures are disclosed. The structures can comprise randomly or periodically structured layers, a dielectric layer to reduce back diffusion of charge carriers, and a metallic layer to reflect photons back towards the absorbing semiconductor layers. This design can increase efficiency of photovoltaic structures. The structures can be fabricated by nanoimprint.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: November 21, 2017
    Assignee: California Institute of Technology
    Inventors: Harry A. Atwater, Dennis Callahan, Colton Bukowsky
  • Publication number: 20170047889
    Abstract: Systems and methods in accordance with various embodiments of the invention implement textured metasurfaces that can provide for enhanced thermal emissivity. In one embodiment, a lightweight solar power generator includes: at least one photovoltaic cell including a photovoltaic material; at least one concentrator, configured to focus incident solar radiation onto the photovoltaic material; and at least one textured metasurface characterized by its inclusion of a plurality of microstructures, each having a characteristic lateral dimension of between approximately 1 ?m and approximately 100 ?m patterned thereon; where the at least one textured metasurface is disposed such that it is in thermal communication with at least some portion of the lightweight solar power generator that generates heat during the normal operation of the lightweight solar power generator, and is thereby configured to dissipate heat generated by the at least some portion.
    Type: Application
    Filed: August 10, 2016
    Publication date: February 16, 2017
    Applicant: California Institute of Technology
    Inventors: Harry A. Atwater, Sergio Pellegrino, Seyed Ali Hajimiri, Dennis Callahan, Emily C. Warmann, Pilar Espinet Gonzalez, Jeffrey P. Bosco
  • Publication number: 20170047886
    Abstract: Compactable power generation arrays are provided. The compactable power generation arrays may include a structural substrate body having an array of solar concentrators configured to receive and re-direct solar radiation onto a plurality of photovoltaic (PV) cells. In many other embodiments the PV cells may be disposed upon a back surface of each of the solar concentrators such that an adjacent solar concentrator is configured to re-direct solar radiation onto the PV cell disposed on the back surface of the adjacent solar concentrator.
    Type: Application
    Filed: August 10, 2016
    Publication date: February 16, 2017
    Applicant: California Institute of Technology
    Inventors: Harry A. Atwater, Sergio Pellegrino, Seyed Ali Hajimiri, Emily C. Warmann, Dennis Callahan, Jeffrey P. Bosco
  • Publication number: 20160380580
    Abstract: A space-based solar power station, a power generating satellite module and/or a method for collecting solar radiation and transmitting power generated using electrical current produced therefrom is provided. Each solar power station includes a plurality of satellite modules. The plurality of satellite modules each include a plurality of modular power generation tiles including a photovoltaic solar radiation collector, a power transmitter and associated control electronics. The power transmitters can be coordinated as a phased array and the power generated by the phased array is transmitted to one or more power receivers to achieve remote wireless power generation and delivery. Each satellite module may be formed of a compactable structure capable of reducing the payload area required to deliver the satellite module to an orbital formation within the space-based solar power station.
    Type: Application
    Filed: May 14, 2015
    Publication date: December 29, 2016
    Inventors: Harry A. Atwater, Seyed Ali Hajimiri, Sergio Pellegrino, Behrooz Abiri, Florian Bohn, Jeffrey P. Bosco, Dennis Callahan, Emily C. Warmann, Manan Arya, Nicolas Lee, Melanie Delapierre
  • Publication number: 20160111563
    Abstract: Photovoltaic structures are disclosed. The structures can comprise randomly or periodically structured layers, a dielectric layer to reduce back diffusion of charge carriers, and a metallic layer to reflect photons back towards the absorbing semiconductor layers. This design can increase efficiency of photovoltaic structures. The structures can be fabricated by nanoimprint.
    Type: Application
    Filed: October 5, 2015
    Publication date: April 21, 2016
    Inventors: Harry A. ATWATER, Dennis CALLAHAN, Colton BUKOWSKY
  • Publication number: 20160056321
    Abstract: A space-based solar power station, a power generating satellite module and/or a method for collecting solar radiation and transmitting power generated using electrical current produced therefrom is provided. Each solar power station includes a plurality of satellite modules. The plurality of satellite modules each include a plurality of modular power generation tiles including a photovoltaic solar radiation collector, a power transmitter and associated control electronics. Numerous embodiments relate to efficient power generation tiles. In one embodiment, an efficient power generation tile includes: at least one photovoltaic material; and at least one concentrator that redirects incident solar radiation towards a photovoltaic material such that the photovoltaic material experiences a greater solar flux relative to the case where the photovoltaic material experiences unaltered solar radiation.
    Type: Application
    Filed: June 2, 2015
    Publication date: February 25, 2016
    Inventors: Harry A. Atwater, Sergio Pellegrino, Seyed Ali Hajimiri, Jeffrey P. Bosco, Dennis Callahan, Emily C. Warmann
  • Publication number: 20120060913
    Abstract: This disclosure relates to structures for the conversion of light into energy. More specifically, the disclosure describes devices for conversion of light to electricity using photovoltaic cells layered with a nanostructure that resonates and undergoes Whispering Gallery Mode.
    Type: Application
    Filed: September 13, 2011
    Publication date: March 15, 2012
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Jonathan Grandidier, Jeremy Munday, Dennis Callahan, Harry A. Atwater
  • Patent number: 4235459
    Abstract: A marking system wherein distinctive, adhesive-backed separable markers are carried on a substrate, and printed on the substrate are images of the respective markers with a blank line being printed adjacent each image on which objects marked may be recorded. The system is particularly, though not exclusively, suited to the marking of keys.
    Type: Grant
    Filed: June 15, 1978
    Date of Patent: November 25, 1980
    Inventor: Dennis Callahan