Blower
US-2016377073-A1 · Dec 29, 2016 · 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 | F04B45/047 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 863 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 37 |
| 2016 | 35 |
| 2017 | 85 |
| 2018 | 74 |
| 2019 | 122 |
| 2020 | 120 |
| 2021 | 96 |
| 2022 | 84 |
| 2023 | 84 |
| 2024 | 70 |
| 2025 | 40 |
| 2026 | 16 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Blower
US-2016348666-A1 · Dec 1, 2016 · US
Electric pump
US-2016348670-A1 · Dec 1, 2016 · US
Actuator support structure and pump device
US-9506464-B2 · Nov 29, 2016 · US
Disc pump and valve structure
US-9506463-B2 · Nov 29, 2016 · US
Heat dissipation module
US-9482219-B2 · Nov 1, 2016 · US
Electrically Conductive Membrane Pump System
US-2016309259-A1 · Oct 20, 2016 · US
Air sampler with closed loop flow control system
US-2016305415-A1 · Oct 20, 2016 · US
Negative pressure wound therapy apparatus
US-9427505-B2 · Aug 30, 2016 · US
System and method for improved spot-cooling of aircraft electronics
US-2016237999-A1 · Aug 18, 2016 · US
Gas control device
US-2016201665-A1 · Jul 14, 2016 · US
Extended elasticity of pump membrane with conserved pump force
US-9377017-B2 · Jun 28, 2016 · US
Progressive pump force regulation
US-9360004-B2 · Jun 7, 2016 · US
Magnetically actuated disposable cartridge pump, a pump system, and a method of pumping
US-9360003-B2 · Jun 7, 2016 · US
Diaphragm pump and method for delivering fine-grain powder with the aid of a diaphragm pump
US-9347444-B2 · May 24, 2016 · US
Exhalation measurement device, and control method
US-2016135714-A1 · May 19, 2016 · US
Pulseless positive displacement pump and method of pulselessly displacing fluid
US-2016108904-A1 · Apr 21, 2016 · US
Pump assembly
US-2016102662-A1 · Apr 14, 2016 · US
Micro-gas pressure driving device
US-2016076530-A1 · Mar 17, 2016 · US
Bonding method for bonding metal plate and piezoelectric body
US-9276194-B2 · Mar 1, 2016 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B45/047?
- CPC F04B45/047 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F04B45/047 (Mechanical Engineering)?
- Our database includes 863 publications tagged with this CPC code.
- Is patent activity under CPC F04B45/047 growing?
- Publication counts under this code: 70 in 2024 vs 40 in 2025 (latest complete years).