Spherical sleeve and bushing bearing for centrifugal pump stage
US-9845808-B2 · Dec 19, 2017 · US
Mechanical Engineering
Mechanical Engineering · 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 | F04D1/06 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 485 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 21 |
| 2016 | 16 |
| 2017 | 46 |
| 2018 | 33 |
| 2019 | 49 |
| 2020 | 62 |
| 2021 | 55 |
| 2022 | 53 |
| 2023 | 46 |
| 2024 | 53 |
| 2025 | 40 |
| 2026 | 11 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Subsea pressure booster
US-9841026-B2 · Dec 12, 2017 · US
Centrifugal pump
US-2017328366-A1 · Nov 16, 2017 · US
Impeller assembly for centrifugal pumps
US-2017260992-A1 · Sep 14, 2017 · US
Multistage centrifugal pump with compression bulkheads
US-2017248157-A1 · Aug 31, 2017 · US
Taper sleeve driver for thrust bearing
US-2017248150-A1 · Aug 31, 2017 · US
Anti-swirl rib system for a pump
US-2017248159-A1 · Aug 31, 2017 · US
Slotted washer pad for stage impellers of submersible centrifugal well pump
US-9745991-B2 · Aug 29, 2017 · US
Apertures Spaced Around Impeller Bottom Shroud of Centrifugal Pump
US-2017241424-A1 · Aug 24, 2017 · US
Load Sharing Spring for Tandem Thrust Bearings of Submersible Pump Assembly
US-2017234321-A1 · Aug 17, 2017 · US
Centrifugal pump
US-2017211581-A1 · Jul 27, 2017 · US
Sealing arrangement and pump having a sealing arrangement
US-9702371-B2 · Jul 11, 2017 · US
Multi-stage horizontal centrifugal pump for conveying a fluid and a method for repairing the same
US-2017191480-A1 · Jul 6, 2017 · US
Opposed impeller wear ring undercut to offset generated axial thrust in multi-stage pump
US-2017184115-A1 · Jun 29, 2017 · US
Centrifugal pump
US-2017175749-A1 · Jun 22, 2017 · US
Multistage pump
US-2017159672-A1 · Jun 8, 2017 · US
Multistage turbomachine with embedded electric motors
US-2017159665-A1 · Jun 8, 2017 · US
Oil and gas well pump components and method of coating such components
US-2017122333-A1 · May 4, 2017 · US
Centrifugal pump assembly
US-2017108007-A1 · Apr 20, 2017 · US
Actuation method and efficiency
US-2017107987-A1 · Apr 20, 2017 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D1/06?
- CPC F04D1/06 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F04D1/06 (Mechanical Engineering)?
- Our database includes 485 publications tagged with this CPC code.
- Is patent activity under CPC F04D1/06 growing?
- Publication counts under this code: 53 in 2024 vs 40 in 2025 (latest complete years).