Removal of toxic/hazardous chemicals absorbed in building materials
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Dec 5, 2006
Issued Date -
N/A
app pub date -
Mar 3, 2003
filing date -
Mar 3, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method of removing pollutants from porous, solid materials uses a biomass loaded onto a support. The biomass is put into contact with a pollutant contaminated porous, solid material so that the bacterial biomass degrades the pollutant. The moisture level of the support and biomass are maintained at a level that optimizes pollutant removal and is a function of the relative solubility of the pollutant.
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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NORTH DAKOTA UNIVERSITY OF | 501 NORTH COLUMBIA ROAD GRAND FORKS ND 58203 |
International Classification(s)

- 2003 Application Filing Year
- C12S Class
- 30 Applications Filed
- 8 Patents Issued To-Date
- 26.67 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Beklemishev, Mikhail K | Moscow, RU | 1 | 1 |
# of filed Patents : 1 Total Citations : 1 | |||
Kozliak, Evguenii I | Grand Forks, ND | 3 | 4 |
# of filed Patents : 3 Total Citations : 4 |
Cited Art Landscape
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Patent Citation Ranking
- 1 Citation Count
- C12S Class
- 20 % this patent is cited more than
- 19 Age
Forward Cite Landscape
- No Forward Cites to Display

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 |
Full Text

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Mar 26, 2024 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 8TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2552); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 8 |
Mar 24, 2020 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 4 |
Oct 04, 2016 | I | Issuance | |
Sep 14, 2016 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Dec 25, 2014 | P | Published | |
Apr 29, 2014 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:EISENBACHER, EGON;BUEHNER, KUNO;GROM, MANFRED;REEL/FRAME:032946/0206 Owner name: PERMA-TEC GMBH & CO.KG, GERMANY Effective Date: Apr 29, 2014 |
Dec 12, 2012 | F | Filing | |
Jan 03, 2012 | PD | Priority Date |

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