Method and apparatus for turning pens
US-11701790-B2 · Jul 18, 2023 · US
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Dead centres
Dead centres · 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 | B23B23/02 |
| Official title | Dead centres |
| Display label | Dead centres |
| Total patents | 3 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2022 | 1 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and apparatus for turning pens
US-2022152863-A1 · May 19, 2022 · US
Center spacer between workpiece and dead center of machine tool
US-9162290-B2 · Oct 20, 2015 · US