F21S 43/252
Two or more successive light guides
Official title: {Two or more successive light guides}
F21S43/252 (Two or more successive light guides) appears on 166 US grants and 183 published applications in this corpus.
Search patents in F21S- Granted patents
- 166
- Published applications
- 183
- Assignees
- 81
- Inventors
- 365
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 12 |
| 2018 | 4 | 1 |
| 2019 | 9 | 15 |
| 2020 | 27 | 49 |
| 2021 | 41 | 47 |
| 2022 | 45 | 30 |
| 2023 | 19 | 8 |
| 2024 | 9 | 6 |
| 2025 | 10 | 5 |
| 2026 | 1 | 9 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Vehicle lamp14 Apr 2026US 12,601,461 B2Stanley Electric Co., Ltd.
- LED vehicle lamp with uniform light emission28 Oct 2025US 12,455,057 B1Zhuhai Zhengyuan Optoelectronic Technology Co., Ltd.
- UWB antenna integrated lamp assembly without EMI noise7 Oct 2025US 12,439,501 B2GM Global Technology Operations LLC
- Optoelectronic device12 Aug 2025US 12,388,058 B2OSRAM Opto Semiconductors GmbH
- Illumination device for a motor vehicle light8 Jul 2025US 12,352,399 B2ZKW Group GmbH
- Vehicle lamp and light guide body8 Oct 2026US 2026/0309298 A1Stanley Electric Co., Ltd.
- Vehicle lamp4 Jun 2026US 2026/0153212 A1Stanley Electric Co., Ltd.
- Lighting device for a motor vehicle4 Jun 2026US 2026/0153213 A1Hella GmbH & Co. KGaA
- Lighting module and lighting device comprising same28 May 2026US 2026/0146719 A1LG Innotek Co., Ltd.
- Lighting apparatus for a motor vehicle28 May 2026US 2026/0146725 A1Hella GmbH & Co. KGaA
Most cited
By later US patents
- Lighting systems10US 10,222,529 B1Apple Inc. · 2019
- Vehicle exterior system with light module8US 11,325,536 B2Magna Mirrors of America, Inc. · 2022
- Passive illuminated grille7US 11,034,317 B2Ford Global Technologies, LLC · 2021
- Vehicle lamp6US 10,371,341 B2Koito Manufacturing Co., Ltd. · 2019
- Lamp for vehicle6US 10,634,307 B2SL Corporation · 2020