G03B 2215/0589
Diffusors, filters or refraction means
G03B2215/0589 (Diffusors, filters or refraction means) appears on 287 US grants and 312 published applications in this corpus.
Search patents in G03B- Granted patents
- 287
- Published applications
- 312
- Assignees
- 159
- Inventors
- 568
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 1 |
| 2002 | 8 | 2 |
| 2003 | 2 | 5 |
| 2004 | 4 | 3 |
| 2005 | 1 | 3 |
| 2006 | 3 | 10 |
| 2007 | 4 | 4 |
| 2008 | 2 | 5 |
| 2009 | 7 | 3 |
| 2010 | 4 | 4 |
| 2011 | 2 | 7 |
| 2012 | 5 | 21 |
| 2013 | 10 | 12 |
| 2014 | 17 | 17 |
| 2015 | 13 | 22 |
| 2016 | 12 | 13 |
| 2017 | 18 | 22 |
| 2018 | 19 | 13 |
| 2019 | 16 | 17 |
| 2020 | 19 | 30 |
| 2021 | 22 | 22 |
| 2022 | 21 | 11 |
| 2023 | 11 | 26 |
| 2024 | 25 | 11 |
| 2025 | 12 | 13 |
| 2026 | 10 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Light emitting module and mobile device18 Aug 2026US 12,710,157 B2Nichia Corporation
- Light adjustment device, photography light, and photography system18 Aug 2026US 12,710,170 B2Shenzhen Leqi Innovation Co., Ltd.
- External flash and flash system18 Aug 2026US 12,710,683 B2Godox Photo Equipment Co., Ltd.
- Adjustable flash module14 Jul 2026US 12,681,363 B2Guangzhou Luxvisions Innovation Technology Limited
- Lamp for photography and video28 Apr 2026US 12,613,393 B2Godox Photo Equipment Co., Ltd.
- Als camera system23 Jul 2026US 2026/0214314 A1
- Flash device30 Apr 2026US 2026/0118737 A1Guangzhou Luxvisions Innovation Technology Limited
- Light receiving lens assembly and projection cylinder comprising same23 Apr 2026US 2026/0110871 A1Godox Photo Equipment Co., Ltd.
- Adjustable flash module2 Apr 2026US 2026/0093161 A1Guangzhou Luxvisions Innovation Technology Limited
- Flash and flash illumination method2 Apr 2026US 2026/0095673 A1Guangzhou Luxvisions Innovation Technology Limited
Most cited
By later US patents
- Illumination device123US 6,575,582 B2Canon Kabushiki Kaisha · 2003
- Encodement-on-film recording apparatus utilizes flash components in a camera111US 5,619,737 AEastman Kodak Company · 1997
- Lighting apparatus and image pickup apparatus76US 6,997,571 B2Canon Kabushiki Kaisha · 2006
- Universal adapter for light-modifying devices66US 9,417,506 B1Orili Ventures LTD · 2016
- Imaging device with focused illumination51US 8,553,340 B2Envirosight LLC · 2013