Igniter with a delay time that can be set
US-11835326-B2 · Dec 5, 2023 · US
Packages or ammunition having valves for pressure-equalising; Packages or ammunition having plugs for pressure release, e.g. meltable {; Blow-out panels; Venting arrangements (ventilating arrangements on packages formed from foldable or erectable blanks B65D5/4295; packages with pressure-relief valves incorporated in a container wall B65D77/225)}
Packages or ammunition having valves for pressure-equalising; Packages or ammunition having plugs for pressure release, e.g. meltable {; Blow-out panels; Venting arrangements (ventilating arrangements on packages formed from foldable or erectable blanks B65D5/4295; packages with pressure-relief valves incorporated in a container wall B65D77/225)} · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F42B39/20 |
| Official title | Packages or ammunition having valves for pressure-equalising; Packages or ammunition having plugs for pressure release, e.g. meltable {; Blow-out panels; Venting arrangements (ventilating arrangements on packages formed from foldable or erectable blanks B65D5/4295; packages with pressure-relief valves incorporated in a container wall B65D77/225)} |
| Display label | Packages or ammunition having valves for pressure-equalising; Packages or ammunition having plugs for pressure release, e.g. meltable {; Blow-out panels; Venting arrangements (ventilating arrangements on packages formed from foldable or erectable blanks B65D5/4295; packages with pressure-relief valves incorporated in a container wall B65D77/225)} |
| Total patents | 71 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 6 |
| 2019 | 8 |
| 2020 | 10 |
| 2021 | 15 |
| 2022 | 6 |
| 2023 | 5 |
| 2024 | 8 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cover structure with double cover structure and shooting case of munition having same
US-11808557-B2 · Nov 7, 2023 · US
Cruise missile weapon active hazard mitigation system
US-11709042-B2 · Jul 25, 2023 · US
Biased equivalent strength threaded joint for dissimilar strength structural materials
US-11703075-B1 · Jul 18, 2023 · US
Direct impingement cook-off mechanism and system
US-11530907-B1 · Dec 20, 2022 · US
Shock mitigation apparatus and system
US-11519707-B1 · Dec 6, 2022 · US
Direct impingement cook-off mechanism and system
US-11519706-B1 · Dec 6, 2022 · US
Cook-off mitigation systems
US-11391550-B1 · Jul 19, 2022 · US
Cook-off mitigation systems
US-11287234-B1 · Mar 29, 2022 · US
Weapon having a deflagration igniter and method for operating such a weapon
US-2022090886-A1 · Mar 24, 2022 · US
Igniter with a delay time that can be set
US-2021389105-A1 · Dec 16, 2021 · US
Cook-off mitigation system
US-11193743-B1 · Dec 7, 2021 · US
Releasable erosion enhancing mechanism
US-11187511-B1 · Nov 30, 2021 · US
Releasable erosion enhancing mechanism
US-11187510-B1 · Nov 30, 2021 · US
Shock mitigation systems
US-11118886-B1 · Sep 14, 2021 · US
Cruise missile weapon active hazard mitigation system
US-2021278182-A1 · Sep 9, 2021 · US
Rocket armament launchable from a tubular launcher with an outside launcher non-ignition securing and motor separation during flight
US-2021262756-A1 · Aug 26, 2021 · US
Cover structure with double cover structure and shooting case of munition having same
US-2021231419-A1 · Jul 29, 2021 · US
Direct impingement cook-off mechanism and system
US-11067376-B1 · Jul 20, 2021 · US
Device for venting an explosive charge and munition equipped with such a device
US-11054229-B2 · Jul 6, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F42B39/20?
- CPC F42B39/20 is the Cooperative Patent Classification code for “Packages or ammunition having valves for pressure-equalising; Packages or ammunition having plugs for pressure release, e.g. meltable {; Blow-out panels; Venting arrangements (ventilating arrangements on packages formed from foldable or erectable blanks B65D5/4295; packages with pressure-relief valves incorporated in a container wall B65D77/225)}.”
- How many patents are filed under CPC F42B39/20 (Packages or ammunition having valves for pressure-equalising; Packages or ammunition having plugs for pressure release, e.g. meltable {; Blow-out panels; Venting arrangements (ventilating arrangements on packages formed from foldable or erectable blanks B65D5/4295; packages with pressure-relief valves incorporated in a container wall B65D77/225)})?
- Our database includes 71 publications tagged with this CPC code.
- Is patent activity under CPC F42B39/20 growing?
- Publication counts under this code: 8 in 2024 vs 2 in 2025 (latest complete years).