Fabricated ocean tunnel structure with escape device and application method thereof
US-11933176-B2 · Mar 19, 2024 · US
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Rescue equipment for personnel (life-saving in water, not specially adapted for submarine personnel B63C)
Rescue equipment for personnel (life-saving in water, not specially adapted for submarine personnel B63C) · 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 | B63G8/40 |
| Official title | Rescue equipment for personnel (life-saving in water, not specially adapted for submarine personnel B63C) |
| Display label | Rescue equipment for personnel (life-saving in water, not specially adapted for submarine personnel B63C) |
| 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 |
| 2023 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.