Process for the biological conversion of bisulphide into elemental sulphur
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United States of America Patent
Stats
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Feb 27, 2018
Issued Date -
N/A
app pub date -
Jan 30, 2015
filing date -
Feb 3, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention is directed to a process for the biological conversion of bisulphide into elemental sulphur, comprising the following steps: a) converting bisulphide as dissolved in an aqueous solution to elemental sulphur in the presence of sulphide-oxidizing bacteria and under anaerobic conditions to obtain a first liquid effluent comprising elemental sulphur and used sulphide-oxidizing bacteria; b) regenerating the used sulphide-oxidizing bacteria as obtained in step (a) and as comprised in an aqueous solution in the presence of an oxidant to obtain a second liquid effluent comprising regenerated sulphide-oxidizing bacteria; c) separating elemental sulphur from either the first and/or the second liquid effluent; d) using the regenerated sulphide-oxidizing bacteria in step (a) as the sulphide-oxidizing bacteria.
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 | |
---|---|---|
PAQELL B V | 3542 AD UTRECHT |
International Classification(s)

- 2015 Application Filing Year
- C01B Class
- 1749 Applications Filed
- 1349 Patents Issued To-Date
- 77.13 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Janssen, Albert Joseph Hendrik | Geldermalsen, NL | 13 | 120 |
# of filed Patents : 13 Total Citations : 120 | |||
Klok, Johannes Bernardus Maria | Amsterdam, NL | 9 | 5 |
# of filed Patents : 9 Total Citations : 5 | |||
Van, Dijk Jan-Henk | Amsterdam, NL | 1 | 1 |
# of filed Patents : 1 Total Citations : 1 | |||
Van, Heeringen Gijsbert Jan | Amsterdam, NL | 13 | 122 |
# of filed Patents : 13 Total Citations : 122 |
Cited Art Landscape
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Patent Citation Ranking
- 1 Citation Count
- C01B Class
- 31.00 % this patent is cited more than
- 7 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 27, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 27, 2029 |
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Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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Legal Events
Date | Code | Event | Description |
---|---|---|---|
Aug 27, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Feb 27, 2018 | I | Issuance | |
Feb 07, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jan 12, 2017 | P | Published | |
Nov 04, 2016 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KLOK, JOHANNES BERNARDUS MARIA;JANSSEN, ALBERT JOSEPH HENDRIK;VAN HEERINGEN, GIJSBERT JAN;AND OTHERS;SIGNING DATES FROM 20160927 TO 20161012;REEL/FRAME:040220/0408 Owner name: PAQELL B.V., NETHERLANDS |
Jan 30, 2015 | F | Filing | |
Feb 03, 2014 | PD | Priority Date |

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