Groove engraving device and groove engraving method
US-11745535-B2 · Sep 5, 2023 · US
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wherein non-plane surfaces are worked
wherein non-plane surfaces are worked · 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 | B44B3/04 |
| Official title | wherein non-plane surfaces are worked |
| Display label | wherein non-plane surfaces are worked |
| Total patents | 12 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 4 |
| 2018 | 3 |
| 2020 | 2 |
| 2022 | 1 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Groove engraving device and groove engraving method
US-2022402295-A1 · Dec 22, 2022 · US
Crayon carving device
US-10780509-B2 · Sep 22, 2020 · US
Crayon carving device
US-10632781-B2 · Apr 28, 2020 · US
Automatic carving device for wheel
US-10144244-B2 · Dec 4, 2018 · US
Crayon carving device
US-2018272443-A1 · Sep 27, 2018 · US
Automatic Carving Device for Wheel
US-2018001695-A1 · Jan 4, 2018 · US
Crayon carving device
US-2017348778-A1 · Dec 7, 2017 · US
Crayon carving device
US-9827618-B2 · Nov 28, 2017 · US
Vehicle wheel rolling carving device
US-9821544-B2 · Nov 21, 2017 · US
Vehicle wheel rolling carving device
US-2017182761-A1 · Jun 29, 2017 · US
Crayon carving device
US-2016207123-A1 · Jul 21, 2016 · US