US Patent No: 8,011,990
Number of patents in Portfolio can not be more than 2000
Process for improving the emission of electron field emitters
Stats
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Sep 6, 2011
Issued date -
Sep 29, 2005
filing date -
11/239,309
serial no -
In Force
status
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Abstract
This invention provides a process for improving the field emission of an electron field emitter comprised of an acicular emitting substance such as acicular carbon, an acicular semiconductor, an acicular metal or a mixture thereof, comprising applying a force to the surface of the electron field emitter wherein the force results in the removal of a portion of the electron field emitter thereby forming a new surface of the electron field emitter.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,458,784 Removal of contaminants from aqueous and gaseous streams using graphic filaments | 63 | 1995 | |
| 5,618,875 High performance carbon filament structures | 58 | 1995 | |
| 5,653,951 Storage of hydrogen in layered nanostructures | 82 | 1995 | |
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| 7,449,081 Process for improving the emission of electron field emitters | 3 | 2001 | |
| 7,449,082 Process for improving the emissions of electron field emitters | 1 | 2007 | |
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| 7,195,938 Activation effect on carbon nanotubes | 5 | 2002 | |
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| 4,857,799 Matrix-addressed flat panel display | 192 | 1986 | |
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| 6,436,221 Method of improving field emission efficiency for fabricating carbon nanotube field emitters | 36 | 2001 | |
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| 6,097,138 Field emission cold-cathode device | 154 | 1997 | |
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| 7,137,860 Method for fabricating a field emission display with carbon-based emitter | 4 | 2002 | |
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| 5,015,912 Matrix-addressed flat panel display | 155 | 1989 | |
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| 6,057,637 Field emission electron source | 133 | 1997 | |
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| 5,149,584 Carbon fiber structures having improved interlaminar properties | 44 | 1990 | |
| 5,413,866 High performance carbon filament structures | 43 | 1992 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Mar 6, 2015 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 6, 2019 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 6, 2023 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |