Apparatus with a repeating trapezoidal mechanism that enables an alternating pressure support surface for preventing pressure injury
US-2024398643-A1 · Dec 5, 2024 · US
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using leaf springs, e.g. metal strips (wooden springs A47C23/06)
using leaf springs, e.g. metal strips (wooden springs A47C23/06) · Cooperative Patent Classification (CPC)
Agriculture, food, personal care, health, and life sciences.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | A47C23/02 |
| Official title | using leaf springs, e.g. metal strips (wooden springs A47C23/06) |
| Display label | using leaf springs, e.g. metal strips (wooden springs A47C23/06) |
| Total patents | 19 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 2 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Multi-stable compliant-mechanism mattress for bed sore prevention
US-12016811-B2 · Jun 25, 2024 · US
Bedding foundation having multiple lift actuators for massage effect
US-11937698-B2 · Mar 26, 2024 · US
Bedding Foundation Having Multiple Lift Actuators For Massage Effect
US-2023232996-A1 · Jul 27, 2023 · US
Bedding foundation having multiple lift actuators for massage effect
US-11641947-B2 · May 9, 2023 · US
Multi-stable compliant-mechanism mattress for bed sore prevention
US-2022175601-A1 · Jun 9, 2022 · US
Machine and method for assembling a bedding foundation
US-11304535-B2 · Apr 19, 2022 · US
Bedding Foundation Having Multiple Lift Actuators For Massage Effect
US-2021353071-A1 · Nov 18, 2021 · US
Cushions including flat springs
US-10631657-B2 · Apr 28, 2020 · US
Machine and method for assembling a bedding foundation
US-2019365114-A1 · Dec 5, 2019 · US
Cushions including flat springs
US-2019142178-A1 · May 16, 2019 · US
Cushions including flat springs
US-10271661-B2 · Apr 30, 2019 · US
Mattress including flat springs
US-9901185-B2 · Feb 27, 2018 · US
Spring with variable resistance and mattresses including the same
US-2016255964-A1 · Sep 8, 2016 · US
Cushions including flat springs
US-2016120330-A1 · May 5, 2016 · US
Wave springs and cushioning articles containing the same
US-2015308533-A1 · Oct 29, 2015 · US
Mattress including flat springs
US-2015216317-A1 · Aug 6, 2015 · US
Bedding Foundation Having Nestably Stackable Spring Assembly Having Reduced Sway
US-2015196130-A1 · Jul 16, 2015 · US
Bedding foundation having nestably stackable spring assembly having reduced sway
US-9072388-B1 · Jul 7, 2015 · US