Tricycle with spark generating device
US-D1108317-S · Jan 6, 2026 · US
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using friction or shock effects
using friction or shock effects · 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 | F23Q1/02 |
| Official title | using friction or shock effects |
| Display label | using friction or shock effects |
| Total patents | 15 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Automatically igniting gas flares
US-12474049-B2 · Nov 18, 2025 · US
On demand spark plume generator to ignite flammable gasses
US-12055290-B2 · Aug 6, 2024 · US
Automatically Igniting Gas Flares
US-2024210033-A1 · Jun 27, 2024 · US
On demand spark plume generator to ignite flammable gasses
US-2023175690-A1 · Jun 8, 2023 · US
Trigger devices for exothermic welds
US-11441776-B2 · Sep 13, 2022 · US
Trigger devices for exothermic welds
US-2021164659-A1 · Jun 3, 2021 · US
Trigger devices for exothermic welds
US-10935239-B2 · Mar 2, 2021 · US
Trigger devices for exothermic welds
US-2020370750-A1 · Nov 26, 2020 · US
Trigger devices for exothermix welds
US-10738999-B2 · Aug 11, 2020 · US
Smoking article comprising a friction ignitable combustible carbonaceous heat source
US-10258083-B2 · Apr 16, 2019 · US
Trigger devices for exothermic welds
US-2019101288-A1 · Apr 4, 2019 · US
Advanced lean burn injector igniter system
US-10082292-B1 · Sep 25, 2018 · US
Advanced lean burn injector igniter system
US-9822977-B1 · Nov 21, 2017 · US
Smoking article comprising a friction ignitable combustible carbonaceous heat source
US-2017318859-A1 · Nov 9, 2017 · US