Piston unit, top land member, and combination of piston unit parts
US-12392301-B2 · Aug 19, 2025 · US
of different materials
of different materials · 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 | F16J1/006 |
| Official title | {of different materials} |
| Display label | of different materials |
| Total patents | 54 |
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 | 4 |
| 2016 | 7 |
| 2017 | 9 |
| 2018 | 6 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 6 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Piston Unit, Top Land Member, and Combination of Piston Unit Parts
US-2025109722-A1 · Apr 3, 2025 · US
Piston including superalloy based overlay
US-2024123550-A1 · Apr 18, 2024 · US
Hydraulic piston machine
US-11952987-B2 · Apr 9, 2024 · US
Plunger, pump, and liquid analysis device
US-11920582-B2 · Mar 5, 2024 · US
Piston and a fluid-actuated working cylinder provided therewith
US-11821444-B2 · Nov 21, 2023 · US
Piston of a hydraulic machine and hydraulic piston machine
US-11754059-B2 · Sep 12, 2023 · US
Piston for an internal combustion engine and production method
US-11680540-B2 · Jun 20, 2023 · US
Piston assembly for human-powered vehicle
US-11572128-B2 · Feb 7, 2023 · US
Piston and a fluid-actuated working cylinder provided therewith
US-2022397132-A1 · Dec 15, 2022 · US
Plunger, pump, and liquid analysis device
US-2022364552-A1 · Nov 17, 2022 · US
Piston for compressor
US-11415126-B2 · Aug 16, 2022 · US
Piston for an internal combustion engine and production method
US-2022120234-A1 · Apr 21, 2022 · US
Piston assembly for human-powered vehicle
US-11292552-B2 · Apr 5, 2022 · US
Piston-integrated gap cover
US-11236827-B2 · Feb 1, 2022 · US
Piston assembly for human-powered vehicle
US-2021362801-A1 · Nov 25, 2021 · US
Piston assembly for human-powered vehicle
US-2021362802-A1 · Nov 25, 2021 · US
Piston for compressor
US-2021215153-A1 · Jul 15, 2021 · US
Hydraulic piston machine
US-2021148343-A1 · May 20, 2021 · US
Piston of a hydraulic machine and hydraulic piston machine
US-2021148342-A1 · May 20, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16J1/006?
- CPC F16J1/006 is the Cooperative Patent Classification code for “of different materials.”
- How many patents are filed under CPC F16J1/006 (of different materials)?
- Our database includes 54 publications tagged with this CPC code.
- Is patent activity under CPC F16J1/006 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).