Piston assembly with opposing injection regions for an opposed-piston engine
US-12320312-B2 · Jun 3, 2025 · US
the parts being bolted or screwed together · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F02F3/0023 |
| Official title | {the parts being bolted or screwed together} |
| Display label | the parts being bolted or screwed together |
| Total patents | 18 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2018 | 3 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12320312-B2 · Jun 3, 2025 · US
US-2025027461-A1 · Jan 23, 2025 · US
US-12104552-B2 · Oct 1, 2024 · US
US-2023392564-A1 · Dec 7, 2023 · US
US-11492996-B2 · Nov 8, 2022 · US
US-11313316-B1 · Apr 26, 2022 · US
US-11079145-B2 · Aug 3, 2021 · US
US-10927786-B1 · Feb 23, 2021 · US
US-10871125-B2 · Dec 22, 2020 · US
US-10690247-B2 · Jun 23, 2020 · US
US-2020191089-A1 · Jun 18, 2020 · US
US-2020191090-A1 · Jun 18, 2020 · US
US-2018355818-A1 · Dec 13, 2018 · US
US-2018313293-A1 · Nov 1, 2018 · US
US-2018195610-A1 · Jul 12, 2018 · US
US-9470311-B2 · Oct 18, 2016 · US
US-9004037-B2 · Apr 14, 2015 · US
US-8981606-B2 · Mar 17, 2015 · US