- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F41A - Functional features or details common to both smallarms and ordnance, e.g. cannonsmountings for smallarms or ordnance
- F41A 21/02 - Composite barrels, i.e. barrels having multiple layers, e.g. of different materials
Patent holdings for IPC class F41A 21/02
Total number of patents in this class: 70
10-year publication summary
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10
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5
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13
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14
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7
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7
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2
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10
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3
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4
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |