Mud Pump and Vacuum Gas Extraction System
US-2018333658-A1 · Nov 22, 2018 · US
Pumps for particular liquids
Pumps for particular liquids · 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 | F04C13/001 |
| Official title | {Pumps for particular liquids} |
| Display label | Pumps for particular liquids |
| Total patents | 118 |
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 | 7 |
| 2016 | 9 |
| 2017 | 24 |
| 2018 | 21 |
| 2019 | 17 |
| 2020 | 15 |
| 2021 | 11 |
| 2022 | 6 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Multi-phase pump with cooled liquid reservoir
US-2018320685-A1 · Nov 8, 2018 · US
Gear pump and printing apparatus provided with same
US-10112406-B2 · Oct 30, 2018 · US
Balance shaft module
US-10107287-B2 · Oct 23, 2018 · US
Method and Device for Separating Solids and Liquids using a Modified Pump
US-2018280840-A1 · Oct 4, 2018 · US
Biomass cake pressure-feeding apparatus
US-2018272302-A1 · Sep 27, 2018 · US
Motor and electric oil pump
US-2018254685-A1 · Sep 6, 2018 · US
Engine oil pump with electronic oil pressure control
US-2018230870-A1 · Aug 16, 2018 · US
Vane pump device
US-10047744-B2 · Aug 14, 2018 · US
Multiphase pumping device
US-10040002-B2 · Aug 7, 2018 · US
Rotary compressor and refrigeration cycle device
US-2018216856-A1 · Aug 2, 2018 · US
Mud pump and vacuum gas extraction system
US-10035083-B2 · Jul 31, 2018 · US
Oil pump
US-10030655-B2 · Jul 24, 2018 · US
Jetting dispensing system including feed by progressive cavity pump and associated methods
US-2018200749-A1 · Jul 19, 2018 · US
Variable displacement type oil pump
US-2018187676-A1 · Jul 5, 2018 · US
Filling machine and method for filling up liquid or pasty masses with external collecting vessel
US-2018153180-A1 · Jun 7, 2018 · US
System and method having control for solids pump
US-9970424-B2 · May 15, 2018 · US
Toy Fluid Pumping Gun
US-2018100505-A1 · Apr 12, 2018 · US
Variable displacement pump
US-2018023564-A1 · Jan 25, 2018 · US
Fuel pump
US-2018010606-A1 · Jan 11, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C13/001?
- CPC F04C13/001 is the Cooperative Patent Classification code for “Pumps for particular liquids.”
- How many patents are filed under CPC F04C13/001 (Pumps for particular liquids)?
- Our database includes 118 publications tagged with this CPC code.
- Is patent activity under CPC F04C13/001 growing?
- Publication counts under this code: 4 in 2024 vs 1 in 2025 (latest complete years).