Method and system for optimally distributing power between a battery and a power grid
US-10411641-B2 · Sep 10, 2019 · US
rechargeable by exposure to light
rechargeable by exposure to light · 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 | F21S9/03 |
| Official title | rechargeable by exposure to light |
| Display label | rechargeable by exposure to light |
| Total patents | 111 |
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 |
| 2016 | 6 |
| 2017 | 21 |
| 2018 | 17 |
| 2019 | 17 |
| 2020 | 9 |
| 2021 | 12 |
| 2022 | 7 |
| 2023 | 8 |
| 2024 | 4 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
AC-DC photovoltaic device
US-10389132-B2 · Aug 20, 2019 · US
Lighting device with releasably connected shade
US-2019219250-A1 · Jul 18, 2019 · US
Portable Decorative Lantern and Related Methods
US-2019203890-A1 · Jul 4, 2019 · US
Image analysis techniques
US-10306738-B2 · May 28, 2019 · US
Transparent display apparatus and method thereof
US-2019113965-A1 · Apr 18, 2019 · US
Automatic mapping of devices in a distributed lighting network
US-10251245-B2 · Apr 2, 2019 · US
Landscape light
US-10228113-B2 · Mar 12, 2019 · US
Street lighting device including traffic sensing and communication with observers and associated methods
US-10222011-B2 · Mar 5, 2019 · US
LED lighting device with adaptive profiles for controlling power consumption
US-10211660-B2 · Feb 19, 2019 · US
Light source, manufacturing method thereof, customizable illumination device and manufacturing method thereof
US-10208908-B2 · Feb 19, 2019 · US
Hybrid street light
US-2019041015-A1 · Feb 7, 2019 · US
Transparent display apparatus and method thereof
US-10175749-B2 · Jan 8, 2019 · US
Repellant system and method
US-2018325097-A1 · Nov 15, 2018 · US
Flame simulator with movable light beam
US-2018320849-A1 · Nov 8, 2018 · US
Light-unit(s) of LED or-and Laser light-string's has more one sections has different light performance(s)
US-2018299084-A1 · Oct 18, 2018 · US
Embedded platform lights
US-2018238507-A1 · Aug 23, 2018 · US
Flame simulator with movable light beam
US-10030831-B2 · Jul 24, 2018 · US
Landscape Light
US-2018202638-A1 · Jul 19, 2018 · US
Repellant system and method
US-10021875-B2 · Jul 17, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F21S9/03?
- CPC F21S9/03 is the Cooperative Patent Classification code for “rechargeable by exposure to light.”
- How many patents are filed under CPC F21S9/03 (rechargeable by exposure to light)?
- Our database includes 111 publications tagged with this CPC code.
- Is patent activity under CPC F21S9/03 growing?
- Publication counts under this code: 4 in 2024 vs 6 in 2025 (latest complete years).