MODIFIED SULFURIC ACID AND USES THEREOF
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
May 9, 2024
app pub date -
Jan 15, 2024
filing date -
Feb 25, 2021
priority date (Note) -
Published
status (Latency Note)
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Importance

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Abstract
A one-pot process to separate lignin from a lignocellulosic feedstock, where the process involves the steps of: providing a vessel; providing the lignocellulosic feedstock; providing a composition that includes: an acid; a modifying agent including a compound containing an amine group; and a peroxide; exposing the lignocellulosic feedstock to the composition in the vessel for a period of time sufficient to remove at least 80% of the lignin present in the lignocellulosic feedstock; and, optionally, separating and removing a liquid phase that includes dissolved lignin fragments from a solid phase containing cellulose fibres.
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 | 5050 47TH STREET SE CALGARY T2B 3S1 |
International Classification(s)

- 2024 Application Filing Year
- C01B Class
- 836 Applications Filed
- 61 Patents Issued To-Date
- 7.30 % 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
- 1 Citation Count
- C01B Class
- 97.44 % 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 |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Nov 9, 2027 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 9, 2031 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 9, 2035 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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 |
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