Two-piece oil filter assembly for pumps
US-2023048325-A1 · Feb 16, 2023 · US
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shaped as rings
shaped as rings · 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 | F16N7/22 |
| Official title | shaped as rings |
| Display label | shaped as rings |
| Total patents | 13 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2021 | 4 |
| 2022 | 3 |
| 2023 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Measuring arrangement for lubricant
US-11566700-B2 · Jan 31, 2023 · US
Sliding-contact bearing with a sealing arrangement, and water pump with same
US-11415168-B2 · Aug 16, 2022 · US
Compact sliding-contact bearing with a sealing arrangement, and water pump with same
US-2022049710-A1 · Feb 17, 2022 · US
Measuring arrangement for lubricant
US-2022042592-A1 · Feb 10, 2022 · US
Rolling bearing having a sealing assembly and water pump having same
US-2021396241-A1 · Dec 23, 2021 · US
Sliding-contact bearing with a sealing arrangement, and water pump with same
US-2021190135-A1 · Jun 24, 2021 · US
Servo press machine
US-11034116-B2 · Jun 15, 2021 · US
Lubricant applicator
US-10941901-B2 · Mar 9, 2021 · US
Servo press machine
US-2019039343-A1 · Feb 7, 2019 · US
Lubricant applicator
US-2018163921-A1 · Jun 14, 2018 · US
Electrostatic oil ring, electrostatic oil ring assembly, and electrodynamic machine
US-2017370523-A1 · Dec 28, 2017 · US
Oil ring, oil ring assembly, and rotating machine
US-2016252209-A1 · Sep 1, 2016 · US