Low-substituted hydroxypropyl cellulose, production method thereof, and solid preparation
US-10882923-B2 · Jan 5, 2021 · US
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Aryl ethers; Aralkyl ethers
Aryl ethers; Aralkyl ethers · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C09D101/30 |
| Official title | Aryl ethers; Aralkyl ethers |
| Display label | Aryl ethers; Aralkyl ethers |
| Total patents | 8 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hydroxyalkyl alkyl cellulose, method for producing the same, and solid preparation
US-10550202-B2 · Feb 4, 2020 · US
Low-substituted hydroxypropyl cellulose, production method thereof, and solid preparation
US-10513565-B2 · Dec 24, 2019 · US
Hydroxyalkyl alkyl cellulose, method for producing the same, and solid preparation
US-10314786-B2 · Jun 11, 2019 · US
Low-substituted hydroxypropyl cellulose, production method thereof, and solid preparation
US-2018100029-A1 · Apr 12, 2018 · US
Low-substituted hydroxypropyl cellulose, production method thereof, and solid preparation
US-2018100027-A1 · Apr 12, 2018 · US
Hydroxyalkyl alkyl cellulose, method for producing the same, and solid preparation
US-2018100028-A1 · Apr 12, 2018 · US
Hydroxyalkyl alkyl cellulose, method for producing the same, and solid preparation
US-2018098941-A1 · Apr 12, 2018 · US