Passive solar wire screens for buildings
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Dec 3, 2013
Grant Date -
Mar 22, 2012
app pub date -
Sep 29, 2011
filing date -
Oct 27, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Passive solar wire screens mount vertically on an edifice. The screens have rods vertically arranged parallel to one another and have wires horizontally arranged parallel to one another. The wires attach to the rods and have first surfaces facing away from the edifice in an upward direction from vertical. The wires also have second surfaces facing toward the edifice in a downward direction from vertical. When the sun has a summer elevation on the horizon, the first surfaces passively reflect solar energy incident thereto away from the wire screens. When the sun has a winter elevation on the horizon, however, the first surfaces passively reflect solar energy incident thereto toward the second surfaces, which in turn passively reflect the solar energy toward the edifice. A concave surface on the wires can also reflect thermal energy back to the edifice.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
BILFINGER WATER TECHNOLOGIES INC | 1950 OLD HWY 8 NW NEW BRIGHTON MN 55112 |
International Classification(s)

- 2011 Application Filing Year
- F24J Class
- 315 Applications Filed
- 255 Patents Issued To-Date
- 80.96 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Ekholm, Michael | Minneapolis, US | 19 | 175 |
# of filed Patents : 19 Total Citations : 175 | |||
Maxson, Richard C | Maple Grove, US | 12 | 289 |
# of filed Patents : 12 Total Citations : 289 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 3, 2025 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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 |
Full Text

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Jul 30, 2014 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Aug 02, 2010 | FPAY | FEE PAYMENT | year of fee payment: 4 |
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Aug 07, 2007 | CC | CERTIFICATE OF CORRECTION | |
Feb 27, 2007 | I | Issuance | |
Feb 07, 2007 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Dec 06, 2005 | AS | ASSIGNMENT | free format text: CONFIRMATORY LICENSE;ASSIGNOR:THE UNIVERSITY OF CHICAGO;REEL/FRAME:025061/0476 Owner name: US ARMY, SECRETARY OF THE ARMY, MARYLAND Effective Date: Dec 06, 2005 |
Dec 09, 2004 | P | Published | |
Mar 08, 2004 | F | Filing | |
Feb 04, 2000 | PD | Priority Date |

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