Modified sulfuric acid and uses thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 20, 2024
Grant Date -
Aug 25, 2022
app pub date -
Aug 20, 2021
filing date -
Feb 25, 2021
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Non-US Coverage
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Abstract
An aqueous composition comprising: sulfuric acid; a modifying agent comprising a carbonyl-containing nitrogenous base compound; and a peroxide. Said composition being capable of delignifying biomass under milder conditions than conditions under which kraft pulping takes place.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SIXRING INC | 1500 140 - 10 AVE SE CALGARY AB T2G 0R1 |
International Classification(s)

- 2021 Application Filing Year
- D21C Class
- 138 Applications Filed
- 63 Patents Issued To-Date
- 45.66 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Pagels, Markus | Calgary, CA | 34 | 128 |
# of filed Patents : 34 Total Citations : 128 | |||
Purdy, Clay | Medicine Hat, CA | 102 | 123 |
# of filed Patents : 102 Total Citations : 123 | |||
Weissenberger, Markus | Calgary, CA | 113 | 81 |
# of filed Patents : 113 Total Citations : 81 | |||
Wynnyk, Kyle G | Calgary, CA | 38 | 21 |
# of filed Patents : 38 Total Citations : 21 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 0 Citation Count
- D21C Class
- 0 % this patent is cited more than
- 1 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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3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Feb 20, 2028 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Feb 20, 2032 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 20, 2036 |
Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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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