Optical film, circularly polarizing plate and organic electroluminescent display device
US-9720140-B2 · Aug 1, 2017 · US
Mixed esters, e.g. cellulose acetate-butyrate
Mixed esters, e.g. cellulose acetate-butyrate · 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 | C08L1/14 |
| Official title | Mixed esters, e.g. cellulose acetate-butyrate |
| Display label | Mixed esters, e.g. cellulose acetate-butyrate |
| Total patents | 366 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 25 |
| 2016 | 32 |
| 2017 | 24 |
| 2018 | 16 |
| 2019 | 56 |
| 2020 | 54 |
| 2021 | 38 |
| 2022 | 21 |
| 2023 | 38 |
| 2024 | 36 |
| 2025 | 22 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Adhesive composition for polarizing plate, polarizing plate including the same and optical display including the same
US-9624410-B2 · Apr 18, 2017 · US
Resin composition and resin shaped product
US-9605140-B2 · Mar 28, 2017 · US
Optical film of cellulose ester and cellulose ether for vertical alignment liquid crystal displays
US-9523794-B2 · Dec 20, 2016 · US
Bonding compositions
US-2016347974-A1 · Dec 1, 2016 · US
Nutrient composition having lipid metabolism-improving action
US-2016317568-A1 · Nov 3, 2016 · US
Cellulose-ester-resin-modifying agent, cellulose ester optical film, polarizing-plate protective film, and liquid crystal display apparatus
US-2016289428-A1 · Oct 6, 2016 · US
Resin composition and resin molded article
US-2016280893-A1 · Sep 29, 2016 · US
Resin composition and resin shaped product
US-9441096-B2 · Sep 13, 2016 · US
Process for producing cellulose derivative and cellulose derivative
US-2016251452-A1 · Sep 1, 2016 · US
Resin composition and resin shaped product
US-2016237249-A1 · Aug 18, 2016 · US
Resin composition and resin shaped product
US-2016237250-A1 · Aug 18, 2016 · US
Elastomeric compositions comprising vinyl acetal polymers
US-2016237256-A1 · Aug 18, 2016 · US
Resin composition and resin shaped product
US-2016237251-A1 · Aug 18, 2016 · US
Process for making elastomeric compositions comprising vinyl acetal polymers
US-2016237220-A1 · Aug 18, 2016 · US
Resin composition and resin shaped product
US-2016237252-A1 · Aug 18, 2016 · US
Method for producing cellulose derivative, and cellulose derivative
US-2016200836-A1 · Jul 14, 2016 · US
Conductive paste and ceramic electronic component
US-2016194504-A1 · Jul 7, 2016 · US
Process for producing cellulose derivative and cellulose derivative
US-9382335-B2 · Jul 5, 2016 · US
Optical film
US-9382334-B2 · Jul 5, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08L1/14?
- CPC C08L1/14 is the Cooperative Patent Classification code for “Mixed esters, e.g. cellulose acetate-butyrate.”
- How many patents are filed under CPC C08L1/14 (Mixed esters, e.g. cellulose acetate-butyrate)?
- Our database includes 366 publications tagged with this CPC code.
- Is patent activity under CPC C08L1/14 growing?
- Publication counts under this code: 36 in 2024 vs 22 in 2025 (latest complete years).