Movable platen, opening/closing apparatus and molding apparatus
US-2021394412-A1 · Dec 23, 2021 · US
Opening, closing or clamping
Opening, closing or clamping · 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 | B29C33/20 |
| Official title | Opening, closing or clamping |
| Display label | Opening, closing or clamping |
| Total patents | 105 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 7 |
| 2017 | 7 |
| 2018 | 9 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 20 |
| 2022 | 10 |
| 2023 | 8 |
| 2024 | 11 |
| 2025 | 10 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Mold case and manufacturing method of microneedle array
US-11198234-B2 · Dec 14, 2021 · US
Tire vulcanizing method and device
US-11155051-B2 · Oct 26, 2021 · US
Foaming apparatus for refrigerator cabinets and related foaming method
US-11148329-B2 · Oct 19, 2021 · US
Production method of mold having recessed pattern, and manufacturing method of pattern sheet
US-11141887-B2 · Oct 12, 2021 · US
Apparatuses, methods, and products for cold spray additive manufacturing of multi curved and reinforced components
US-2021291431-A1 · Sep 23, 2021 · US
Magnetically attached flanges
US-2021268692-A1 · Sep 2, 2021 · US
Movable platen, opening/closing apparatus and molding apparatus
US-11077594-B2 · Aug 3, 2021 · US
Method for manufacturing fiber reinforced resin molded article, and manufacturing device thereof
US-2021221075-A1 · Jul 22, 2021 · US
Mold separation method
US-2021170638-A1 · Jun 10, 2021 · US
Tire vulcanizing method and device
US-2021162693-A1 · Jun 3, 2021 · US
Magnetically attached flanges
US-11007677-B2 · May 18, 2021 · US
Method for producing foam blow-molded article
US-10974435-B2 · Apr 13, 2021 · US
Mold separation device and separation method thereof
US-10967544-B2 · Apr 6, 2021 · US
Mold made of a composite material and process employing this mold
US-10960579-B2 · Mar 30, 2021 · US
Preform shaping apparatus, preform shaping method and composite material molding method
US-2021060819-A1 · Mar 4, 2021 · US
Magnetic clamp device
US-2021046673-A1 · Feb 18, 2021 · US
Phantom production tool
US-10913186-B2 · Feb 9, 2021 · US
Curing press for a tire blank
US-10913228-B2 · Feb 9, 2021 · US
Method for manufacturing a body made of a porous material
US-2021031464-A1 · Feb 4, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B29C33/20?
- CPC B29C33/20 is the Cooperative Patent Classification code for “Opening, closing or clamping.”
- How many patents are filed under CPC B29C33/20 (Opening, closing or clamping)?
- Our database includes 105 publications tagged with this CPC code.
- Is patent activity under CPC B29C33/20 growing?
- Publication counts under this code: 11 in 2024 vs 10 in 2025 (latest complete years).