Traffic sign add-on
US-2025369200-A1 · Dec 4, 2025 · US
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Traffic signs
Traffic signs · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G09F13/0472 |
| Official title | {Traffic signs} |
| Display label | Traffic signs |
| Total patents | 15 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2017 | 1 |
| 2018 | 2 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Parking device
US-12488711-B1 · Dec 2, 2025 · US
Interior upright for runway guidance sign
US-11798442-B2 · Oct 24, 2023 · US
Warning triangle structure
US-11455918-B2 · Sep 27, 2022 · US
Interior Upright for Runway Guidance Sign
US-2022130290-A1 · Apr 28, 2022 · US
Warning triangle structure
US-2021174712-A1 · Jun 10, 2021 · US
Road signs and markings with light conversion
US-2020273385-A1 · Aug 27, 2020 · US
Light-emitting diode lighting structure for improving back-illumination efficiency
US-2020098959-A1 · Mar 26, 2020 · US
Driving mechanism and self-propelled warning device using the same
US-10563366-B2 · Feb 18, 2020 · US
Foldable driving mechanism and warning device using the same
US-2018361926-A1 · Dec 20, 2018 · US
Driving mechanism and self-propelled warning device using the same
US-2018363255-A1 · Dec 20, 2018 · US
Retroreflective articles and devices having viscoelastic lightguide
US-9851482-B2 · Dec 26, 2017 · US
Retroreflective articles and devices having viscoelastic lightguide
US-2015316693-A1 · Nov 5, 2015 · US
Optical display element and display device
US-9171488-B2 · Oct 27, 2015 · US
Retroreflective articles and devices having viscoelastic lightguide
US-9086535-B2 · Jul 21, 2015 · US