External pressure vessels, submersible vehicles comprising external pressure vessels, and methods for manufacturing external pressure vessels
US-2026001634-A1 · Jan 1, 2026 · US
Hulls built to withstand hydrostatic pressure when fully submerged, e.g. submarine hulls
Hulls built to withstand hydrostatic pressure when fully submerged, e.g. submarine hulls · 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 | B63B3/13 |
| Official title | Hulls built to withstand hydrostatic pressure when fully submerged, e.g. submarine hulls |
| Display label | Hulls built to withstand hydrostatic pressure when fully submerged, e.g. submarine hulls |
| Total patents | 52 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 8 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 11 |
| 2024 | 12 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Support structure for manufacturing a pressure vessel
US-12253212-B2 · Mar 18, 2025 · US
Pressure-resistant buoys
US-12195144-B2 · Jan 14, 2025 · US
Maritime vehicle systems and methods
US-2024317372-A1 · Sep 26, 2024 · US
Support structure for manufacturing a pressure vessel
US-2024318779-A1 · Sep 26, 2024 · US
An underwater vessel and associated system
US-2024239450-A1 · Jul 18, 2024 · US
Spherical autonomous underwater vehicle
US-12032373-B2 · Jul 9, 2024 · US
Maritime vehicle systems and methods
US-12024270-B2 · Jul 2, 2024 · US
Flange for pressure vessel with undercut fillet
US-12012190-B2 · Jun 18, 2024 · US
Pyram-shaped deep-sea pressure-resistant shell and design method thereof
US-12006011-B2 · Jun 11, 2024 · US
Nose arrangement and method for deploying a nose arrangement of an underwater vehicle
US-11993356-B2 · May 28, 2024 · US
Structures and methods for mitigating implosion pressure spikes
US-11993355-B2 · May 28, 2024 · US
Self-adjusting band
US-11959592-B2 · Apr 16, 2024 · US
Pyram-shaped deep-sea pressure-resistant shell and design method thereof
US-2024116612-A1 · Apr 11, 2024 · US
Method of manufacturing a pressure vessel
US-11953151-B2 · Apr 9, 2024 · US
Nose arrangement and method for deploying a nose arrangement of an underwater vehicle
US-2023391435-A1 · Dec 7, 2023 · US
Hammer activated measurement system for testing and evaluating rubber and other materials
US-11781967-B1 · Oct 10, 2023 · US
Deep-sea manned submersible and design method for pressure resistant hull curved structure thereof
US-11731736-B2 · Aug 22, 2023 · US
Bow clamp
US-11724783-B2 · Aug 15, 2023 · US
Pressure-resistant hull for a submersible and design method therefor
US-11727165-B2 · Aug 15, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B63B3/13?
- CPC B63B3/13 is the Cooperative Patent Classification code for “Hulls built to withstand hydrostatic pressure when fully submerged, e.g. submarine hulls.”
- How many patents are filed under CPC B63B3/13 (Hulls built to withstand hydrostatic pressure when fully submerged, e.g. submarine hulls)?
- Our database includes 52 publications tagged with this CPC code.
- Is patent activity under CPC B63B3/13 growing?
- Publication counts under this code: 12 in 2024 vs 2 in 2025 (latest complete years).