G09F 13/20
Illuminated signs: with luminescent surfaces or parts
Official title: with luminescent surfaces or parts (luminescent compositions C09K11/00; light sources using luminescence F21K2/00)
G09F13/20 (Illuminated signs: with luminescent surfaces or parts) appears on 1,549 US grants and 1,794 published applications in this corpus.
Search patents in G09F- Granted patents
- 1,549
- Published applications
- 1,794
- Assignees
- 887
- Inventors
- 3,213
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 10 | 0 |
| 1978 | 1 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 7 | 0 |
| 1987 | 4 | 0 |
| 1988 | 7 | 0 |
| 1989 | 9 | 0 |
| 1990 | 10 | 0 |
| 1991 | 20 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 9 | 0 |
| 1995 | 13 | 0 |
| 1996 | 22 | 0 |
| 1997 | 15 | 0 |
| 1998 | 23 | 0 |
| 1999 | 16 | 0 |
| 2000 | 21 | 0 |
| 2001 | 30 | 8 |
| 2002 | 28 | 34 |
| 2003 | 26 | 36 |
| 2004 | 24 | 68 |
| 2005 | 31 | 60 |
| 2006 | 30 | 80 |
| 2007 | 32 | 78 |
| 2008 | 21 | 70 |
| 2009 | 31 | 86 |
| 2010 | 48 | 78 |
| 2011 | 52 | 84 |
| 2012 | 52 | 93 |
| 2013 | 56 | 94 |
| 2014 | 77 | 84 |
| 2015 | 78 | 106 |
| 2016 | 76 | 91 |
| 2017 | 96 | 96 |
| 2018 | 82 | 102 |
| 2019 | 92 | 101 |
| 2020 | 97 | 80 |
| 2021 | 64 | 76 |
| 2022 | 62 | 46 |
| 2023 | 42 | 52 |
| 2024 | 33 | 44 |
| 2025 | 43 | 32 |
| 2026 | 18 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Photoluminescent sign with transient-suppressed LED circuit29 Sep 2026US 12,747,849 B2Ecoglo International Limited
- Decentralized self-service checkouts29 Sep 2026US 12,749,062 B2NCR Voyix Corporation
- Powered retail signage assembly with consistent visibility in different lighting conditions23 Jun 2026US 12,664,918 B2Apple Inc.
- Method for producing a lit component for a vehicle16 Jun 2026US 12,658,079 B2Mercedes-Benz Group AG
- Spectrum-extended road electric sign, road electric sign control system and traffic information acquisition device using the same16 Jun 2026US 12,658,080 B2Korea Institute of Civil Engineering and Building Technology
- Display panel for safety fence1 Oct 2026US 2026/0301612 A1Dongwoo Fine-Chem Co., Ltd.
- Adjustable modular and digital photovoltaic cladding system27 Aug 2026US 2026/0254402 A1
- Aerosol generating article and method of manufacturing aerosol generating article30 Jul 2026US 2026/0215515 A1Kt&G Corporation
- Display apparatus and display method23 Jul 2026US 2026/0211260 A1JVCKENWOOD Corporation
- Curable and flowable luminescent epoxy coating composition9 Jul 2026US 2026/0193475 A1Imam Abdulrahman Bin Faisal University
Most cited
By later US patents
- Colored-light emitting display500US 4,271,408 AStanley Electric Co., Ltd. · 1981
- Light-emitting diode display481US 4,298,869 AZaidan Hojin Handotai Kenkyu Shinkokai · 1981
- Mirror385US 4,499,451 ANippondenso Co., Ltd. · 1985
- Integrated multicolor organic led array316US 5,424,560 AMotorola, Inc. · 1995
- Method of fabricating an integrated multicolor organic led array278US 5,681,756 AMotorola, Inc. · 1997