Working machine
US-12528222-B2 · Jan 20, 2026 · US
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Hand-held or hand-operated tools (B28D1/222, B28D1/225 take precedence)
Hand-held or hand-operated tools (B28D1/222, B28D1/225 take precedence) · 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 | B28D1/228 |
| Official title | {Hand-held or hand-operated tools (B28D1/222, B28D1/225 take precedence)} |
| Display label | Hand-held or hand-operated tools (B28D1/222, B28D1/225 take precedence) |
| Total patents | 22 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Working machine
US-12479119-B2 · Nov 25, 2025 · US
Portable cutting machine
US-12290960-B2 · May 6, 2025 · US
Working machine
US-2024399612-A1 · Dec 5, 2024 · US
Bit holder for a power tool
US-2023356434-A1 · Nov 9, 2023 · US
Portable Cutting Machine
US-2023302684-A1 · Sep 28, 2023 · US
Working machine
US-2023219247-A1 · Jul 13, 2023 · US
Scoring knife
US-11685066-B2 · Jun 27, 2023 · US
Methods of forming laminated glass structures
US-11318717-B2 · May 3, 2022 · US
Scoring knife
US-2022080606-A1 · Mar 17, 2022 · US
Scoring knife
US-11192268-B2 · Dec 7, 2021 · US
Scoring knife
US-2020298430-A1 · Sep 24, 2020 · US
Cutting and separating device applicable to manual ceramic cutters
US-10773419-B2 · Sep 15, 2020 · US
Scoring knife
US-10710256-B2 · Jul 14, 2020 · US
Self-adjusting device for cutting head for monoguide cutters
US-10639815-B2 · May 5, 2020 · US
Portable tile cutter
US-10357898-B2 · Jul 23, 2019 · US
Self-adjusting device for cutting head for monoguide cutters
US-2019193300-A1 · Jun 27, 2019 · US
Scoring knife
US-2018361599-A1 · Dec 20, 2018 · US
Cutting and separating device applicable to manual ceramic cutters
US-2018290335-A1 · Oct 11, 2018 · US
Portable tile cutter
US-2017348873-A1 · Dec 7, 2017 · US