Mandrel extraction system and method
US-2026061666-A1 · Mar 5, 2026 · US
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centering cores
centering cores · 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 | B29C33/304 |
| Official title | {centering cores} |
| Display label | centering cores |
| Total patents | 19 |
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 | 1 |
| 2017 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 1 |
| 2024 | 5 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems and methods for casting propellant grain
US-12350864-B2 · Jul 8, 2025 · US
Apparatus and method for manufacturing reactor
US-12115702-B2 · Oct 15, 2024 · US
Systems and methods for casting propellant grain
US-2024149502-A1 · May 9, 2024 · US
A mould assembly for manufacturing a wind turbine blade shell part
US-2024100746-A1 · Mar 28, 2024 · US
Systems and methods for casting propellant grain
US-11883985-B2 · Jan 30, 2024 · US
Semiconductor chip molding die device
US-2024006198-A1 · Jan 4, 2024 · US
Apparatus and method for manufacturing reactor
US-2023158715-A1 · May 25, 2023 · US
Mould and process for vulcanising tyres for vehicles wheels
US-2022297398-A1 · Sep 22, 2022 · US
Method and a tool for assembling a female mould and a female mould arrangement
US-11433570-B2 · Sep 6, 2022 · US
Molds for internal hermetic connector seals
US-11298862-B2 · Apr 12, 2022 · US
Systems and methods for casting propellant grain
US-2022080629-A1 · Mar 17, 2022 · US
Method and a tool for assembling a female mould and a female mould arrangement
US-2021308911-A1 · Oct 7, 2021 · US
Method and a tool for assembling a female mould and a female mould arrangement
US-11065784-B2 · Jul 20, 2021 · US
Manufacturing a fiber-reinforced composite component using mandrels
US-11046034-B2 · Jun 29, 2021 · US
Molds for internal hermetic connector seals
US-2020078995-A1 · Mar 12, 2020 · US
A method and a tool for assembling a female mould and a female mould arrangement
US-2019077053-A1 · Mar 14, 2019 · US
Manufacturing a fiber-reinforced composite component using mandrels
US-2017297279-A1 · Oct 19, 2017 · US
Transfer device
US-9156193-B2 · Oct 13, 2015 · US