Systems and methods for preloading a bearing and aligning a lock nut
US-10837489-B2 · Nov 17, 2020 · US
internal, i.e. with spreading action
internal, i.e. with spreading action · 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 | F16B21/183 |
| Official title | {internal, i.e. with spreading action} |
| Display label | internal, i.e. with spreading action |
| Total patents | 120 |
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 | 6 |
| 2016 | 4 |
| 2017 | 11 |
| 2018 | 16 |
| 2019 | 15 |
| 2020 | 14 |
| 2021 | 19 |
| 2022 | 9 |
| 2023 | 7 |
| 2024 | 13 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System and method for axially retaining two coaxial shaft components
US-2020217370-A1 · Jul 9, 2020 · US
Snap ring having retention feature
US-10697489-B1 · Jun 30, 2020 · US
Methods and assemblies for retaining an internal component of a valve within an external component thereof using a retention O-ring and groove geometry
US-10663066-B2 · May 26, 2020 · US
Securing element for a bearing element
US-10641339-B2 · May 5, 2020 · US
Asymmetrical-force connector system
US-10634181-B2 · Apr 28, 2020 · US
Seal system and method
US-10578146-B2 · Mar 3, 2020 · US
Grommet and grommet-equipped wire harness
US-10574046-B2 · Feb 25, 2020 · US
Anti-rotation device for fasteners
US-2019353197-A1 · Nov 21, 2019 · US
Equipment mounting device and installation arrangement including an equipment mounting device
US-10479281-B2 · Nov 19, 2019 · US
Propeller shaft
US-10422388-B2 · Sep 24, 2019 · US
Mounting structure and clip
US-2019285106-A1 · Sep 19, 2019 · US
Retainer for rotating members
US-10378588-B2 · Aug 13, 2019 · US
Clutch carrier for a transmission
US-2019219106-A1 · Jul 18, 2019 · US
Self-clinching floating fastener
US-2019219092-A1 · Jul 18, 2019 · US
Securing element for a bearing element
US-2019211878-A1 · Jul 11, 2019 · US
Device with adjustment bolt
US-10323675-B2 · Jun 18, 2019 · US
Seal system and method
US-2019162225-A1 · May 30, 2019 · US
Rack and pinion steering gear unit
US-10246120-B2 · Apr 2, 2019 · US
Lock nut with offset retaining ring
US-2019048917-A1 · Feb 14, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16B21/183?
- CPC F16B21/183 is the Cooperative Patent Classification code for “internal, i.e. with spreading action.”
- How many patents are filed under CPC F16B21/183 (internal, i.e. with spreading action)?
- Our database includes 120 publications tagged with this CPC code.
- Is patent activity under CPC F16B21/183 growing?
- Publication counts under this code: 13 in 2024 vs 5 in 2025 (latest complete years).