System for an optical device including light mixing rod and resilient member
US-12584610-B2 · Mar 24, 2026 · US
the parts being subjected to torsion, e.g. spiral springs
the parts being subjected to torsion, e.g. spiral springs · 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 | F21V17/166 |
| Official title | {the parts being subjected to torsion, e.g. spiral springs} |
| Display label | the parts being subjected to torsion, e.g. spiral springs |
| Total patents | 50 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 10 |
| 2018 | 5 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 2 |
| 2024 | 4 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Trim retention assemblies for recessed luminaires
US-12504153-B2 · Dec 23, 2025 · US
Lens actuation system for an optical device
US-12486966-B2 · Dec 2, 2025 · US
Systems for a coupling system
US-2025172276-A1 · May 29, 2025 · US
Systems for an optical device
US-2025172743-A1 · May 29, 2025 · US
Systems for an optical device
US-2025172275-A1 · May 29, 2025 · US
Trim retention assemblies for recessed luminaires
US-2025137621-A1 · May 1, 2025 · US
Light fixture trim attachment system
US-12287080-B2 · Apr 29, 2025 · US
Led lamp with panel locking assembly
US-12276404-B1 · Apr 15, 2025 · US
Downlight having direct-press assembling mechanism
US-2024384861-A1 · Nov 21, 2024 · US
Rotatable trims for recessed luminaires
US-12117142-B2 · Oct 15, 2024 · US
Rotatable trims for recessed luminaires
US-2024288133-A1 · Aug 29, 2024 · US
Light fixture trim attachment system
US-2024125458-A1 · Apr 18, 2024 · US
Lamp component covering a light source
US-11486564-B2 · Nov 1, 2022 · US
Assembly component and lamp
US-11300277-B2 · Apr 12, 2022 · US
Lamp component covering a light source
US-2021131647-A1 · May 6, 2021 · US
Installation assembly of ceiling lighting fixture, ceiling lighting fixture and ceiling lamp
US-10935218-B2 · Mar 2, 2021 · US
Assembly component and lamp
US-2021048175-A1 · Feb 18, 2021 · US
LED lighting element and method of manufacturing the same
US-10801693-B1 · Oct 13, 2020 · US
Installation assembly of ceiling lighting fixture, ceiling lighting fixture and ceiling lamp
US-2020256546-A1 · Aug 13, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F21V17/166?
- CPC F21V17/166 is the Cooperative Patent Classification code for “the parts being subjected to torsion, e.g. spiral springs.”
- How many patents are filed under CPC F21V17/166 (the parts being subjected to torsion, e.g. spiral springs)?
- Our database includes 50 publications tagged with this CPC code.
- Is patent activity under CPC F21V17/166 growing?
- Publication counts under this code: 4 in 2024 vs 8 in 2025 (latest complete years).