Resin molding device and method for producing resin molded article
US-12521926-B2 · Jan 13, 2026 · US
Plunger drives; Pressure equalizing means for a plurality of transfer plungers · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B29C45/021 |
| Official title | {Plunger drives; Pressure equalizing means for a plurality of transfer plungers} |
| Display label | Plunger drives; Pressure equalizing means for a plurality of transfer plungers |
| Total patents | 19 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2018 | 1 |
| 2019 | 2 |
| 2021 | 2 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12521926-B2 · Jan 13, 2026 · US
US-12384082-B2 · Aug 12, 2025 · US
US-12230512-B2 · Feb 18, 2025 · US
US-11992982-B2 · May 28, 2024 · US
US-11969922-B2 · Apr 30, 2024 · US
US-2024116229-A1 · Apr 11, 2024 · US
US-2023112343-A1 · Apr 13, 2023 · US
US-11565452-B2 · Jan 31, 2023 · US
US-2022262650-A1 · Aug 18, 2022 · US
US-2022161475-A1 · May 26, 2022 · US
US-2022161469-A1 · May 26, 2022 · US
US-2021387394-A1 · Dec 16, 2021 · US
US-11186023-B2 · Nov 30, 2021 · US
US-10498203-B2 · Dec 3, 2019 · US
US-2019358875-A1 · Nov 28, 2019 · US
US-2018345558-A1 · Dec 6, 2018 · US
US-9409325-B2 · Aug 9, 2016 · US
US-2016096295-A1 · Apr 7, 2016 · US
US-2015151467-A1 · Jun 4, 2015 · US