Thermionic power cell

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11721451
SERIAL NO

17404465

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A thermionic (TI) power cell includes a heat source, such as a layer of radioactive material that generates heat due to radioactive decay, a layer of electron emitting material disposed on the layer of radioactive material, and a layer of electron collecting material. The layer of electron emitting material is physically separated from the layer of electron collecting material to define a chamber between the layer of electron collecting material and the layer of electron emitting material. The chamber is substantially evacuated to permit electrons to traverse the chamber from the layer of electron emitting material to the layer of electron collecting material. Heat generated over time by the layer of radioactive material causes a substantially constant flow of electrons to be emitted by the layer of electron emitting material to induce an electric current to flow through the layer of electron collecting material when connected to an electrical load.

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINSTRATOR OF NASA300 E STREET S W WASHINGTON DC 20546

International Classification(s)

loading....
  • 2021 Application Filing Year
  • G21H Class
  • 20 Applications Filed
  • 12 Patents Issued To-Date
  • 60 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Choi, Sang H Poquoson, US 43 186
Duzik, Adam J Yorktown, US 16 30

Cited Art Landscape

Load Citation

Patent Citation Ranking

  • 0 Citation Count
  • G21H Class
  • 0 % this patent is cited more than
  • 2 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges12301 - 10012345678910111213

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Feb 8, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Feb 8, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Feb 8, 2035