Dual rate torsional coupling
US-12247635-B2 · Mar 11, 2025 · US
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the elastic members consisting of two or more springs of different kinds, {e.g. elastomeric members and wound springs}
the elastic members consisting of two or more springs of different kinds, {e.g. elastomeric members and wound 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 | F16F15/137 |
| Official title | the elastic members consisting of two or more springs of different kinds, {e.g. elastomeric members and wound springs} |
| Display label | the elastic members consisting of two or more springs of different kinds, {e.g. elastomeric members and wound springs} |
| Total patents | 16 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 1 |
| 2023 | 5 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Damper device
US-11754144-B2 · Sep 12, 2023 · US
Damper device
US-11661971-B2 · May 30, 2023 · US
Spring seat and damper device
US-11608862-B2 · Mar 21, 2023 · US
Damper device
US-11608863-B2 · Mar 21, 2023 · US
Coaxial spring damper device and system
US-11566681-B2 · Jan 31, 2023 · US
Dual rate torsional coupling
US-2022228642-A1 · Jul 21, 2022 · US
Damper device
US-2021310522-A1 · Oct 7, 2021 · US
Spring seat and damper device
US-2021262527-A1 · Aug 26, 2021 · US
Damper device
US-2021262549-A1 · Aug 26, 2021 · US
Damper device
US-2021262528-A1 · Aug 26, 2021 · US
Power transmission device
US-2020217394-A1 · Jul 9, 2020 · US
Coaxial Spring Damper Device and System
US-2020191232-A1 · Jun 18, 2020 · US
Vibration damping device and method for designing the same
US-10508709-B2 · Dec 17, 2019 · US
Vibration damping device and method for designing the same
US-2019226552-A1 · Jul 25, 2019 · US
Dual mass flywheel
US-9964177-B2 · May 8, 2018 · US