Valve
US-12179397-B2 · Dec 31, 2024 · US
Closure devices therefor
Closure devices therefor · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B29C45/28 |
| Official title | Closure devices therefor |
| Display label | Closure devices therefor |
| Total patents | 73 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 12 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 13 |
| 2023 | 6 |
| 2024 | 12 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Injection molding machine, injection molding system, and method of manufacturing resin molded product
US-2024367358-A1 · Nov 7, 2024 · US
Injection molding machine, injection molding system, and method of manufacturing resin molded product
US-12049033-B2 · Jul 30, 2024 · US
Thermosetting composition for injection molding, method for producing molded article using the same, and cured product
US-2024227256-A1 · Jul 11, 2024 · US
Shut-off nozzle with needle valve, injection device and injection molding machine
US-11911941-B2 · Feb 27, 2024 · US
Method of manufacturing molded resin component, manufacturing apparatus, and molded resin component
US-11813781-B2 · Nov 14, 2023 · US
Manufacturing apparatus, manufacturing system, and manufacturing method
US-2023302697-A1 · Sep 28, 2023 · US
Molding apparatus for molding opening devices and packaging machine having a molding apparatus
US-2023264397-A1 · Aug 24, 2023 · US
Interdental cleaning tool production method
US-11701209-B2 · Jul 18, 2023 · US
Injection mold and injection molding method
US-2023219269-A1 · Jul 13, 2023 · US
Mold, method of manufacturing article, and valve
US-11613056-B2 · Mar 28, 2023 · US
Heating Assembly and Method for Insulation System Restoration of a Power Cable
US-2022415541-A1 · Dec 29, 2022 · US
Method of manufacturing molded resin component, manufacturing apparatus, and molded resin component
US-2022410451-A1 · Dec 29, 2022 · US
Pressurisation and Heating Device and Method for Insulation System Restoration of a Power Cable
US-2022415542-A1 · Dec 29, 2022 · US
Injection molding machine, injection molding system, and method of manufacturing resin molded product
US-2022388212-A1 · Dec 8, 2022 · US
Thermosetting composition, method of manufacturing molded article using the same, and cured product
US-2022363881-A1 · Nov 17, 2022 · US
Method and system for molding an article
US-2022355520-A1 · Nov 10, 2022 · US
Method for manufacturing a toothed wheel by compression injection molding
US-2022339834-A1 · Oct 27, 2022 · US
Shut-off nozzle with needle valve, injection device and injection molding machine
US-2022305709-A1 · Sep 29, 2022 · US
Apparatus, mold, injection molding machine, manufacturing unit, method for manufacturing resin molded product, and valve unit
US-2022274304-A1 · Sep 1, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B29C45/28?
- CPC B29C45/28 is the Cooperative Patent Classification code for “Closure devices therefor.”
- How many patents are filed under CPC B29C45/28 (Closure devices therefor)?
- Our database includes 73 publications tagged with this CPC code.
- Is patent activity under CPC B29C45/28 growing?
- Publication counts under this code: 12 in 2024 vs 5 in 2025 (latest complete years).