Thermionic power cell
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 8, 2023
Grant Date -
N/A
app pub date -
Aug 17, 2021
filing date -
Jun 1, 2017
priority date (Note) -
In Force
status (Latency Note)
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Abstract
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
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINSTRATOR OF NASA | 300 E STREET S W WASHINGTON DC 20546 |
International Classification(s)

- 2021 Application Filing Year
- G21H Class
- 20 Applications Filed
- 12 Patents Issued To-Date
- 60 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Choi, Sang H | Poquoson, US | 43 | 186 |
# of filed Patents : 43 Total Citations : 186 | |||
Duzik, Adam J | Yorktown, US | 16 | 30 |
# of filed Patents : 16 Total Citations : 30 |
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Patent Citation Ranking
- 0 Citation Count
- G21H Class
- 0 % this patent is cited more than
- 2 Age
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