Polyethylene compositions and closures made from them
US-10519304-B2 · Dec 31, 2019 · US
Shear ratio or shear ratio index
Shear ratio or shear ratio index · 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 | C08F2500/19 |
| Official title | Shear ratio or shear ratio index |
| Display label | Shear ratio or shear ratio index |
| Total patents | 98 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 14 |
| 2017 | 10 |
| 2018 | 14 |
| 2019 | 15 |
| 2020 | 11 |
| 2021 | 14 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Multimodal high density polyethylene
US-10435548-B2 · Oct 8, 2019 · US
Polyethylene for superior sheet extrusion thermoforming performance
US-10414086-B2 · Sep 17, 2019 · US
Polyethylene composition for drip irrigation pipes or tapes
US-2019271417-A1 · Sep 5, 2019 · US
Ethylene/1-butene copolymers with enhanced resin processability
US-10370469-B2 · Aug 6, 2019 · US
Passivated supports: catalyst, process, product and film
US-10344111-B2 · Jul 9, 2019 · US
Dual Metallocene Catalyst Copolymer Compositions
US-2019169322-A1 · Jun 6, 2019 · US
Low density ethylene-based polymers with broad molecular weight distributions and low extractables
US-10301403-B2 · May 28, 2019 · US
Polypropylene resin composition and molded product thereof
US-10294360-B2 · May 21, 2019 · US
Process to manufacture ethylene interpolymer products
US-2019135960-A1 · May 9, 2019 · US
Conductive polymer composition, conductive polymer sheet, electrical device, and their preparation methods
US-10280279-B2 · May 7, 2019 · US
Polyolefin Polymers With Increased Melt Strength
US-2019127552-A1 · May 2, 2019 · US
Ethylene-based polymers
US-10239974-B2 · Mar 26, 2019 · US
Hybrid supported metallocen catalyst, method for preparing olefin polymer by using same, and olefin polymer having improved melt strength
US-2019023816-A1 · Jan 24, 2019 · US
An ethylene/alpha-olefin copolymer composition, and articles comprising the same
US-2019023883-A1 · Jan 24, 2019 · US
High Molecular Weight Multimodal Elastomer Compositions with Good Processability
US-2018371132-A1 · Dec 27, 2018 · US
Ethylene/alpha-olefin/nonconjugated polyene based compositions and foams formed from the same
US-10160841-B2 · Dec 25, 2018 · US
Ethylene/alpha-olefin/polyene based compositions
US-10160819-B2 · Dec 25, 2018 · US
Ethylene/alpha-olefin copolymers having excellent processability
US-10155830-B2 · Dec 18, 2018 · US
High Molecular Weight Multimodal Elastomer Compositions with Good Processability
US-2018355084-A1 · Dec 13, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F2500/19?
- CPC C08F2500/19 is the Cooperative Patent Classification code for “Shear ratio or shear ratio index.”
- How many patents are filed under CPC C08F2500/19 (Shear ratio or shear ratio index)?
- Our database includes 98 publications tagged with this CPC code.
- Is patent activity under CPC C08F2500/19 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).