Medical fluid pumping system having backflow prevention
US-12392335-B2 · Aug 19, 2025 · US
Opening times
Opening times · 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 | F04B2201/0601 |
| Official title | Opening times |
| Display label | Opening times |
| Total patents | 48 |
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 | 2 |
| 2016 | 7 |
| 2017 | 1 |
| 2018 | 5 |
| 2019 | 11 |
| 2020 | 6 |
| 2021 | 8 |
| 2022 | 4 |
| 2023 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for operating a vacuum pump system
US-11719231-B2 · Aug 8, 2023 · US
Loading a fluidic element
US-2023160381-A1 · May 25, 2023 · US
Valve timing in electronically commutated hydraulic machine
US-11649727-B2 · May 16, 2023 · US
Pressure pump performance monitoring system using torque measurements
US-11499544-B2 · Nov 15, 2022 · US
Blood treatment system having backflow prevention
US-2022299019-A1 · Sep 22, 2022 · US
Valve failure determination in a pump monitoring system
US-11441557-B2 · Sep 13, 2022 · US
Blood treatment system having pulsatile blood intake
US-11384748-B2 · Jul 12, 2022 · US
Method for operating a vacuum pump system
US-2021381499-A1 · Dec 9, 2021 · US
Pump changeover algorithm for spray system
US-11148152-B2 · Oct 19, 2021 · US
Bulk modulus monitoring system
US-11111772-B2 · Sep 7, 2021 · US
Valve failure determination in a pump monitoring system
US-2021199108-A1 · Jul 1, 2021 · US
Cavitation avoidance system
US-11028845-B2 · Jun 8, 2021 · US
Diagnostics of downhole dynamometer data for control and troubleshooting of reciprocating rod lift systems
US-10947833-B2 · Mar 16, 2021 · US
Single-sensor analysis system
US-10914302-B2 · Feb 9, 2021 · US
Pressure pump valve monitoring system
US-10895254-B2 · Jan 19, 2021 · US
Valve timing in electronically commutated hydraulic machine
US-2020208521-A1 · Jul 2, 2020 · US
Spray system pressure differential monitoring
US-10688509-B2 · Jun 23, 2020 · US
Diaphragm pumps and pumping systems
US-10670005-B2 · Jun 2, 2020 · US
Medical fluid pumping system including pump and machine chassis mounting regime
US-10590924-B2 · Mar 17, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B2201/0601?
- CPC F04B2201/0601 is the Cooperative Patent Classification code for “Opening times.”
- How many patents are filed under CPC F04B2201/0601 (Opening times)?
- Our database includes 48 publications tagged with this CPC code.
- Is patent activity under CPC F04B2201/0601 growing?
- Publication counts under this code: 3 in 2023 vs 1 in 2025 (latest complete years).