Modified cellulose fiber powder
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
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Jan 28, 2025
Grant Date -
Jan 27, 2022
app pub date -
Dec 26, 2019
filing date -
Dec 26, 2019
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
A powder of modified cellulose fibers has an average fiber length of 1 μm or more and 500 μm or less, wherein the modified cellulose fibers are made from anionically modified cellulose fibers introduced at an anionic group with a modifying group. A dispersion contains a powder of modified cellulose fibers as defined above and a medium, wherein the powder of modified cellulose fibers is dispersed in the medium. A resin composition contains a powder of modified cellulose fibers as defined above and a resin, wherein the powder of modified cellulose fibers and the resin are blended. A resin molded article is obtained by molding a resin composition as defined above. A powder of cellulose fibers having excellent dispersibility in a solvent, which can be obtained by an inexpensive process, and a method for producing the same can be provided.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
---|---|---|---|---|---|
JP | B2 | JP7250821 | Dec 26, 2019 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
PUBLISHED GRANTED PATENT (SECOND LEVEL) | 改質セルロース繊維粉末 | Apr 03, 2023 | |||
WO | A1 | WO2020138291 | Dec 26, 2019 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
INTERNATIONAL APPLICATION PUBLISHED WITH INTERNATIONAL SEARCH REPORT | 改質セルロース繊維粉末 | Jul 02, 2020 | |||
CN | B | CN113272333 | Dec 26, 2019 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
GRANTED PATENT FOR INVENTION | Modified cellulose fiber powder | Jun 09, 2023 | |||
EP | A1 | EP3904393 | Dec 26, 2019 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
APPLICATION PUBLISHED WITH SEARCH REPORT | MODIFIED CELLULOSE FIBER POWDER | Nov 03, 2021 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
KAO CORPORATION | TOKYO |
International Classification(s)

- 2019 Application Filing Year
- C08J Class
- 2330 Applications Filed
- 1280 Patents Issued To-Date
- 54.94 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Morioka, Takuya | Wakayama, JP | 3 | 0 |
# of filed Patents : 3 Total Citations : 0 | |||
Saito, Junnosuke | Osaka, JP | 4 | 0 |
# of filed Patents : 4 Total Citations : 0 | |||
Tsuboi, Takuma | Sakai, JP | 7 | 6 |
# of filed Patents : 7 Total Citations : 6 |
Cited Art Landscape
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Patent Citation Ranking
- 0 Citation Count
- C08J 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 |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Jul 28, 2028 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 28, 2032 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 28, 2036 |
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 |
Full Text

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Jan 28, 2025 | P | Publication | |
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Jan 27, 2022 | P | Published | |
Nov 18, 2021 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
Jun 08, 2021 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TSUBOI, TAKUMA;MORIOKA, TAKUYA;SAITO, JUNNOSUKE;SIGNING DATES FROM 20210303 TO 20210311;REEL/FRAME:056519/0588 Owner name: KAO CORPORATION, JAPAN |
Jun 07, 2021 | FEPP | FEE PAYMENT PROCEDURE | free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Dec 26, 2019 | F | Filing | |
Dec 27, 2018 | PD | Priority Date |

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