Writing tool refill and writing tool using same
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Automatic machines
Automatic machines · 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 | B43K15/02 |
| Official title | Automatic machines |
| Display label | Automatic machines |
| Total patents | 2 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2020 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Writing tool refill and writing tool using same
US-2018236807-A1 · Aug 23, 2018 · US