Vehicle illumination device
US-2017349088-A1 · Dec 7, 2017 · US
Waterproofing
Waterproofing · 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 | F21S45/50 |
| Official title | Waterproofing |
| Display label | Waterproofing |
| Total patents | 312 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 20 |
| 2016 | 25 |
| 2017 | 41 |
| 2018 | 41 |
| 2019 | 44 |
| 2020 | 19 |
| 2021 | 18 |
| 2022 | 27 |
| 2023 | 19 |
| 2024 | 26 |
| 2025 | 26 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Lighting device
US-2017350567-A1 · Dec 7, 2017 · US
Led fog lamp
US-2017349087-A1 · Dec 7, 2017 · US
Lighting apparatus
US-9834135-B2 · Dec 5, 2017 · US
Head lamp device of vehicle
US-2017327027-A1 · Nov 16, 2017 · US
Vehicle lighting assembly
US-2017332458-A1 · Nov 16, 2017 · US
Power supply device, light fixture, and vehicle
US-9756753-B2 · Sep 5, 2017 · US
Heat dissipation device for a light device of a motor vehicle
US-2017241618-A1 · Aug 24, 2017 · US
Multifunction lamp unit and rear view device therewith
US-2017240102-A1 · Aug 24, 2017 · US
Light source device
US-2017211776-A1 · Jul 27, 2017 · US
Elongate Illuminated Automotive Design Element
US-2017197542-A1 · Jul 13, 2017 · US
Headlamp assembly for a saddle-type vehicle
US-9688332-B2 · Jun 27, 2017 · US
Vehicle Headlamp with Light Passage
US-2017122518-A1 · May 4, 2017 · US
Vehicle lamp
US-9625117-B2 · Apr 18, 2017 · US
Light Emitting Device for Vehicle, Lighting Device for Vehicle, and Lighting Tool for Vehicle
US-2017009953-A1 · Jan 12, 2017 · US
Lighting apparatus and automobile including the same
US-2016377249-A1 · Dec 29, 2016 · US
Motor vehicle and motor vehicle headlamp with a front housing
US-2016377254-A1 · Dec 29, 2016 · US
Wide angle optical system for LED array
US-9528679-B2 · Dec 27, 2016 · US
Illumination device for vehicle
US-2016368412-A1 · Dec 22, 2016 · US
Compact multi-function LED lighthead
US-9505342-B2 · Nov 29, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F21S45/50?
- CPC F21S45/50 is the Cooperative Patent Classification code for “Waterproofing.”
- How many patents are filed under CPC F21S45/50 (Waterproofing)?
- Our database includes 312 publications tagged with this CPC code.
- Is patent activity under CPC F21S45/50 growing?
- Publication counts under this code: 26 in 2024 vs 26 in 2025 (latest complete years).