Patents by Inventor John Hunter Mack

John Hunter Mack 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).

  • GAS PRODUCTION FROM SOLIDS VIA NON-THERMAL PLASMA
    Publication number: 20230151287
    Abstract: A first voltage source produces a first voltage such as an AC voltage. Further, a first electrode of a hydrogen generation system conveys the first voltage. The first voltage conveyed over the first electrode generates low-temperature plasma extending between the first electrode and the mass of material. Presence of the low-temperature plasma releases gas from the mass of material.
    Type: Application
    Filed: November 10, 2022
    Publication date: May 18, 2023
    Inventors: Juan Pablo Trelles, Hsi-Wu Wong, John Hunter Mack
  • Spark plugs via surface modifications
    Patent number: 11233379
    Abstract: Lean-burn engines are important due to their ability to reduce emissions, increase fuel efficiency, and mitigate engine knock. Embodiments of a spark plug with a nanostructured electrode extend the lean flammability limit of natural gas. A nano-/micro-morphology modification is applied on a surface of the spark plug electrode to increase its surface roughness. Measurements indicate that the lean flammability limit of spark-ignited methane can be lowered by modulating the surface roughness of the spark plug electrode with nanostructures.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: January 25, 2022
    Assignee: University of Massachusetts
    Inventor: John Hunter Mack
  • SPARK PLUGS VIA SURFACE MODIFICATIONS
    Publication number: 20200358262
    Abstract: Lean-burn engines are important due to their ability to reduce emissions, increase fuel efficiency, and mitigate engine knock. Embodiments of a spark plug with a nanostructured electrode extend the lean flammability limit of natural gas. A nano-/micro-morphology modification is applied on a surface of the spark plug electrode to increase its surface roughness. Measurements indicate that the lean flammability limit of spark-ignited methane can be lowered by modulating the surface roughness of the spark plug electrode with nanostructures.
    Type: Application
    Filed: May 11, 2020
    Publication date: November 12, 2020
    Inventor: John Hunter Mack
  • Linear cell stringing
    Patent number: 8561878
    Abstract: Techniques for linear cell stringing are disclosed. In some embodiments, a plurality of sets of solar cells are linearly positioned, a plurality of tabbing ribbon segments are placed in contact with the plurality of sets of solar cells, and the plurality of sets of solar cells and corresponding plurality of tabbing ribbon segments are soldered together to form a plurality of solar cell strings. In some cases, the plurality of solar cell strings is substantially simultaneously formed in parallel.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: October 22, 2013
    Assignee: Banyan Energy, Inc.
    Inventors: David Sheldon Schultz, John Hunter Mack, Kenneth Evan Rakestraw
  • Compact optics for concentration and illumination systems
    Patent number: 8412010
    Abstract: An optical concentrator having a concentrating element for collecting input light, a redirecting element for receiving the light and also for redirecting the light, and a waveguide including a plurality of incremental portions enabling collection and concentration of the light onto a receiver. Other systems replace the receiver by a light source so the optics can provide illumination.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: April 2, 2013
    Assignee: Banyan Energy, Inc.
    Inventors: Shondip Ghosh, David Sheldon Schultz, John Hunter Mack, Christopher Stephen Grimmer, Kevin Richard Fine
  • LINEAR CELL STRINGING
    Publication number: 20120080508
    Abstract: Techniques for linear cell stringing are disclosed. In some embodiments, a plurality of sets of solar cells are linearly positioned, a plurality of tabbing ribbon segments are placed in contact with the plurality of sets of solar cells, and the plurality of sets of solar cells and corresponding plurality of tabbing ribbon segments are soldered together to form a plurality of solar cell strings. In some cases, the plurality of solar cell strings is substantially simultaneously formed in parallel.
    Type: Application
    Filed: September 27, 2011
    Publication date: April 5, 2012
    Applicant: BANYAN ENERGY, INC.
    Inventors: David Sheldon Schultz, John Hunter Mack, Kenneth Evan Rakestraw
  • COMPACT OPTICS FOR CONCENTRATION AND ILLUMINATION SYSTEMS
    Publication number: 20110096426
    Abstract: An optical concentrator having a concentrating element for collecting input light, a redirecting element for receiving the light and also for redirecting the light, and a waveguide including a plurality of incremental portions enabling collection and concentration of the light onto a receiver. Other systems replace the receiver by a light source so the optics can provide illumination.
    Type: Application
    Filed: November 4, 2010
    Publication date: April 28, 2011
    Inventors: Shondip GHOSH, David Sheldon Schultz, John Hunter Mack, Christopher Stephen Grimmer, Kevin Richard Fine