Pool cleaning device
US-2026009255-A1 · Jan 8, 2026 · US
Fixed Constructions
Fixed Constructions · Cooperative Patent Classification (CPC)
Building, mining, and civil engineering structures.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | E04H4/1663 |
| Official title | — |
| Display label | Fixed Constructions (mapped technology topic) |
| Total patents | 58 |
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 | 9 |
| 2016 | 2 |
| 2017 | 8 |
| 2018 | 6 |
| 2019 | 11 |
| 2020 | 4 |
| 2021 | 9 |
| 2022 | 5 |
| 2024 | 2 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Submerged pool related platform
US-2025092707-A1 · Mar 20, 2025 · US
Fluid jet control unit of a pool related platform
US-2024383595-A1 · Nov 21, 2024 · US
Swimming pool cleaner
US-12018510-B2 · Jun 25, 2024 · US
Buoyant automatic cleaners for spas and other water-containing vessels
US-11473326-B2 · Oct 18, 2022 · US
Automated pool cleaner with enhanced travel features
US-11473327-B2 · Oct 18, 2022 · US
Buoyant automatic cleaners for spas and other water-containing vessels
US-2022282510-A1 · Sep 8, 2022 · US
Buoyant automatic cleaners for spas and other water-containing vessels
US-11371254-B2 · Jun 28, 2022 · US
Automatic swimming pool cleaners with bypass mechanisms
US-2022112735-A1 · Apr 14, 2022 · US
Pool cleaner
US-2021388628-A1 · Dec 16, 2021 · US
Swimming Pool Cleaner
US-2021198914-A1 · Jul 1, 2021 · US
Buoyant automatic cleaners for spas and other water-containing vessels
US-2021180354-A1 · Jun 17, 2021 · US
Buoyant automatic cleaners for spas and other water-containing vessels
US-2021180356-A1 · Jun 17, 2021 · US
Buoyant automatic cleaners for spas and other water-containing vessels
US-2021180353-A1 · Jun 17, 2021 · US
Buoyant automatic cleaners for spas and other water-containing vessels
US-2021180355-A1 · Jun 17, 2021 · US
Buoyant automatic cleaners for spas and other water-containing vessels
US-10968651-B2 · Apr 6, 2021 · US
Swimming pool cleaner
US-10947750-B2 · Mar 16, 2021 · US
Pool cleaning robot with bypass mechanism
US-10890008-B2 · Jan 12, 2021 · US
Swimming pool cleaner
US-10876318-B2 · Dec 29, 2020 · US
Buoyant automatic cleaners for spas and other water-containing vessels
US-2020256076-A1 · Aug 13, 2020 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC E04H4/1663?
- CPC E04H4/1663 is the Cooperative Patent Classification code for “Fixed Constructions.”
- How many patents are filed under CPC E04H4/1663 (Fixed Constructions)?
- Our database includes 58 publications tagged with this CPC code.
- Is patent activity under CPC E04H4/1663 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).