Rolling bearing
US-2021317878-A1 · Oct 14, 2021 · US
of hybrid bearings, e.g. rolling bearings with steel races and ceramic rolling elements
of hybrid bearings, e.g. rolling bearings with steel races and ceramic rolling elements · 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 | F16C33/303 |
| Official title | {of hybrid bearings, e.g. rolling bearings with steel races and ceramic rolling elements} |
| Display label | of hybrid bearings, e.g. rolling bearings with steel races and ceramic rolling elements |
| Total patents | 96 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 7 |
| 2017 | 1 |
| 2018 | 13 |
| 2019 | 18 |
| 2020 | 13 |
| 2021 | 14 |
| 2022 | 6 |
| 2023 | 8 |
| 2024 | 5 |
| 2025 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hybrid ball bearing pair and a compressor bearing arrangement
US-11143236-B2 · Oct 12, 2021 · US
Additive manufacturing of hollow or partially hollow rolling elements
US-2021237308-A1 · Aug 5, 2021 · US
Rolling bearing for refrigerant compressor
US-11067129-B2 · Jul 20, 2021 · US
High-Speed Bearing with Grooved and Cylindrical Races
US-2021088079-A1 · Mar 25, 2021 · US
Rolling bearing assembly
US-10830276-B2 · Nov 10, 2020 · US
Composite bearing and method of making and using the same
US-2020300298-A1 · Sep 24, 2020 · US
Hybrid bearings
US-10781857-B2 · Sep 22, 2020 · US
Turbine engine bearing used as a static electricity leak path
US-2020277994-A1 · Sep 3, 2020 · US
Hybrid rolling bearing, particularly for refrigerant compressor
US-10753396-B2 · Aug 25, 2020 · US
Hybrid ball bearing pair and a compressor bearing arrangement
US-2020263733-A1 · Aug 20, 2020 · US
Electro-chemical hardening of bearing raceways
US-10746226-B2 · Aug 18, 2020 · US
Multirow Ball Bearing and Manufacturing Method Therefor
US-2020240466-A1 · Jul 30, 2020 · US
Electro-chemical hardening of bearing raceways
US-2020063798-A1 · Feb 27, 2020 · US
Hybrid Bearings
US-2020040942-A1 · Feb 6, 2020 · US
Two hybrid ball bearings and a compressor bearing arrangement
US-10544828-B2 · Jan 28, 2020 · US
Steel alloy
US-2020010940-A1 · Jan 9, 2020 · US
Hybrid ball bearing, particularly for refrigerant compressor
US-10527094-B2 · Jan 7, 2020 · US
Rolling bearing assembly
US-2019390710-A1 · Dec 26, 2019 · US
Electro-chemical hardening of bearing raceways
US-10480581-B2 · Nov 19, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16C33/303?
- CPC F16C33/303 is the Cooperative Patent Classification code for “of hybrid bearings, e.g. rolling bearings with steel races and ceramic rolling elements.”
- How many patents are filed under CPC F16C33/303 (of hybrid bearings, e.g. rolling bearings with steel races and ceramic rolling elements)?
- Our database includes 96 publications tagged with this CPC code.
- Is patent activity under CPC F16C33/303 growing?
- Publication counts under this code: 5 in 2024 vs 8 in 2025 (latest complete years).