Convertible platform for supporting a user
US-12575680-B2 · Mar 17, 2026 · US
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with legs pivotably connected to seat or underframe
with legs pivotably connected to seat or underframe · 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 | A47C4/20 |
| Official title | with legs pivotably connected to seat or underframe |
| Display label | with legs pivotably connected to seat or underframe |
| Total patents | 24 |
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 | 1 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 1 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 4 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Origami-based foldable furniture assembly
US-2025160508-A1 · May 22, 2025 · US
Chair backrest structure and foldable chair
US-2024382003-A1 · Nov 21, 2024 · US
Foldable plastic-steel chair
US-12144429-B2 · Nov 19, 2024 · US
Portable chair
US-12144430-B2 · Nov 19, 2024 · US
Foldable chair and reinforcement structure for leg pipe
US-2024148146-A1 · May 9, 2024 · US
Convertible platform for supporting a user
US-2023371713-A1 · Nov 23, 2023 · US
Foldable plastic-steel chair
US-2022354256-A1 · Nov 10, 2022 · US
Portable Chair
US-2022167746-A1 · Jun 2, 2022 · US
Portable chair
US-11241097-B2 · Feb 8, 2022 · US
Chair and chair base
US-11122902-B2 · Sep 21, 2021 · US
Folding chair
US-10959526-B2 · Mar 30, 2021 · US
Chair and chair base
US-2021007489-A1 · Jan 14, 2021 · US
Portable Chair
US-2020383481-A1 · Dec 10, 2020 · US
Chair having adjustable backrest
US-10806264-B1 · Oct 20, 2020 · US
Portable chair and cup holder assembly
US-10743670-B2 · Aug 18, 2020 · US
Folding chair
US-2020138191-A1 · May 7, 2020 · US
Portable chair and cup holder assembly
US-10561249-B2 · Feb 18, 2020 · US
Cup holder
US-D856091-S · Aug 13, 2019 · US
Portable chair and cup holder assembly
US-2018338622-A1 · Nov 29, 2018 · US