Complementary fluidic valves and systems
US-11480262-B1 · Oct 25, 2022 · US
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using spool valves
using spool valves · 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 | F15C3/02 |
| Official title | using spool valves |
| Display label | using spool valves |
| Total patents | 7 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be declining based on the most recent years.
| Year | Patents |
|---|---|
| 2019 | 1 |
| 2021 | 5 |
| 2022 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Complementary fluidic logic and memory devices
US-11131331-B2 · Sep 28, 2021 · US
Complementary fluidic valves, logic gates, and latches
US-11125255-B1 · Sep 21, 2021 · US
Analog fluidic devices and systems
US-11098737-B1 · Aug 24, 2021 · US
Complementary fluidic valves and systems
US-11054056-B1 · Jul 6, 2021 · US
Complementary fluidic logic and memory devices
US-2021010495-A1 · Jan 14, 2021 · US
Load-dependent hydraulic fluid flow control system
US-2019024677-A1 · Jan 24, 2019 · US