Unibody bypass plunger and valve cage
US-2024183253-A1 · Jun 6, 2024 · US
having free plunger lifting the fluid to the surface
having free plunger lifting the fluid to the surface · 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 | F04B47/12 |
| Official title | having free plunger lifting the fluid to the surface |
| Display label | having free plunger lifting the fluid to the surface |
| Total patents | 81 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 5 |
| 2019 | 5 |
| 2020 | 10 |
| 2021 | 12 |
| 2022 | 13 |
| 2023 | 7 |
| 2024 | 9 |
| 2025 | 12 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fastening apparatus, system, and method
US-11732558-B2 · Aug 22, 2023 · US
Retrievable hydraulically actuated well pump
US-11713659-B2 · Aug 1, 2023 · US
Fastening apparatus, system, and method
US-2023131997-A1 · Apr 27, 2023 · US
Unibody bypass plunger and valve cage
US-2023120288-A1 · Apr 20, 2023 · US
Unibody bypass plunger and valve cage with sealable ports
US-11578570-B2 · Feb 14, 2023 · US
Plunger Lift Systems and Related Methods
US-2023019787-A1 · Jan 19, 2023 · US
Tapered multistage plunger lift with bypass sleeve
US-11542797-B1 · Jan 3, 2023 · US
Unibody bypass plunger and valve cage
US-11530599-B2 · Dec 20, 2022 · US
Methods of Increasing Efficiency of Plunger Lift Operations
US-2022372852-A1 · Nov 24, 2022 · US
Internal valve plunger
US-2022290535-A1 · Sep 15, 2022 · US
Utilizing analytical models to identify wells in which to install plunger lift for improved well production
US-11441556-B2 · Sep 13, 2022 · US
Unibody bypass plunger and valve cage
US-11434733-B2 · Sep 6, 2022 · US
Unibody bypass plunger and valve cage with sealable ports
US-2022275712-A1 · Sep 1, 2022 · US
Unibody bypass plunger and valve cage with sealable ports
US-11401789-B2 · Aug 2, 2022 · US
Internal valve plunger
US-11346193-B2 · May 31, 2022 · US
Unibody bypass plunger and valve cage
US-2022145736-A1 · May 12, 2022 · US
Jetting plunger for plunger lift applications
US-11261713-B2 · Mar 1, 2022 · US
Gas-charged unloading plunger
US-11261859-B2 · Mar 1, 2022 · US
Unibody bypass plunger with integral dart valve cage
US-2022056785-A1 · Feb 24, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B47/12?
- CPC F04B47/12 is the Cooperative Patent Classification code for “having free plunger lifting the fluid to the surface.”
- How many patents are filed under CPC F04B47/12 (having free plunger lifting the fluid to the surface)?
- Our database includes 81 publications tagged with this CPC code.
- Is patent activity under CPC F04B47/12 growing?
- Publication counts under this code: 9 in 2024 vs 12 in 2025 (latest complete years).