Gas ionization source
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jan 24, 2012
Grant Date -
Jul 3, 2008
app pub date -
Sep 14, 2007
filing date -
Sep 15, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A gas ionizer includes a photocatalyst activated with an electric field to emit electrons. The photocatalyst is also illuminated with an ultraviolet light source. The ionized gas is passed through a chamber between the photocatalyst and the ultraviolet light source. The photocatalyst may be titanium oxide.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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NANO-PROPRIETARY INC | 3006 LONGHORN BLVD SUITE 107 AUSTIN TX 78758-7631 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Fink, Richard Lee | Austin, US | 65 | 851 |
# of filed Patents : 65 Total Citations : 851 |
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- 13 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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 |
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Legal Events
Date | Code | Event | Description |
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Sep 21, 2015 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Aug 21, 2015 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Aug 21, 2015 |
Aug 21, 2015 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Apr 03, 2015 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Feb 14, 2011 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Nov 02, 2009 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Aug 21, 2007 | I | Issuance | |
Apr 19, 2007 | P | Published | |
Dec 19, 2005 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STEFFENS, HANS-TONI;REEL/FRAME:019518/0678 Owner name: HEGENSCHEIDT-MFD GMBH & CO. KG, GERMANY Effective Date: Dec 19, 2005 |
Nov 04, 2005 | F | Filing | |
Oct 18, 2005 | PD | Priority Date |

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