Effective approach to preventing and remedying distresses in soils and construction materials
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 19, 2015
Grant Date -
Aug 30, 2012
app pub date -
May 10, 2012
filing date -
Aug 6, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Methods for preventing, reducing, or eliminating construction heave, expansion, distresses, and damage primarily caused by the formation of ettringite are disclosed including introducing fluoride ion releasing agent/salt(s), such as sodium fluoride, calcium fluoride, and potassium fluoride, to expansive soil layers or concrete structural elements and allowing the fluoride ion releasing agent/salt(s) at ambient temperature to react with formed ettringite and to prevent the formation of ettringite of the expansive soil layers or concrete structural elements. Other embodiments are described and claimed.
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 | |
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AMERICAN ACCUTECH LTD CO | SUGAR LAND TX |
International Classification(s)

- 2012 Application Filing Year
- C09K Class
- 1833 Applications Filed
- 1451 Patents Issued To-Date
- 79.16 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Deng, Yun | Sugar Land, US | 97 | 812 |
# of filed Patents : 97 Total Citations : 812 | |||
Du, Lianxiang | Austin, US | 2 | 3 |
# of filed Patents : 2 Total Citations : 3 |
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Patent Citation Ranking
- 0 Citation Count
- C09K Class
- 0 % this patent is cited more than
- 10 Age
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 19, 2026 |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
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Nov 17, 2005 | P | Published | |
Feb 03, 2005 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAKANO, TSUNEO;NUMATA, KIHARU;ITOU, AKIHIRO;AND OTHERS;REEL/FRAME:016791/0018 Owner name: MITSUBISHI RAYON CO., LTD., JAPAN Effective Date: Feb 03, 2005 |
Aug 20, 2003 | F | Filing | |
Aug 20, 2002 | PD | Priority Date |

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