G03B 21/13
Projectors for producing special effects at the edges of picture
Official title: Projectors for producing special effects at the edges of picture, e.g. blurring
G03B21/13 (Projectors for producing special effects at the edges of picture) appears on 116 US grants and 136 published applications in this corpus.
Search patents in G03B- Granted patents
- 116
- Published applications
- 136
- Assignees
- 72
- Inventors
- 258
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 1 |
| 2003 | 2 | 2 |
| 2004 | 2 | 0 |
| 2005 | 2 | 10 |
| 2006 | 3 | 10 |
| 2007 | 4 | 7 |
| 2008 | 7 | 6 |
| 2009 | 4 | 3 |
| 2010 | 6 | 2 |
| 2011 | 1 | 5 |
| 2012 | 2 | 6 |
| 2013 | 5 | 4 |
| 2014 | 2 | 8 |
| 2015 | 8 | 6 |
| 2016 | 9 | 13 |
| 2017 | 8 | 8 |
| 2018 | 9 | 12 |
| 2019 | 8 | 6 |
| 2020 | 8 | 8 |
| 2021 | 7 | 8 |
| 2022 | 5 | 3 |
| 2023 | 7 | 5 |
| 2024 | 2 | 1 |
| 2025 | 3 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Projecting with expanded field of illumination9 Dec 2025US 12,493,232 B2ams-OSRAM Asia Pacific Pte. Ltd.
- Control device, multi-projection system and control method of control device28 Jan 2025US 12,212,896 B2Seiko Epson Corporation
- Systems and methods for local dimming in multi-modulation displays21 Jan 2025US 12,207,026 B2Dolby Laboratories Licensing Corporation
- Light irradiation device having two wedge prisms and an aberration correction surface14 May 2024US 11,982,927 B2Mitsubishi Electric Corporation
- Illumination device having wedge prisms and driving portion with multiple gears12 Mar 2024US 11,927,742 B2Mitsubishi Electric Corporation
- Cockpit system including operating system configured to use projector3 Jul 2025US 2025/0214427 A1Hyundai Mobis Co., Ltd.
- Systems and methods for local dimming in multi-modulation displays21 Mar 2024US 2024/0098229 A1Dolby Laboratories Licensing Corporation
- Projecting with expanded field of illumination7 Dec 2023US 2023/0393453 A1ams-OSRAM Asia Pacific Pte. Ltd.
- Systems and methods for local dimming in multi-modulation displays15 Jun 2023US 2023/0188686 A1Dolby Laboratories Licensing Corporation
- Method for adjusting pixel values of blending image and projection system thereof30 Mar 2023US 2023/0096353 A1Coretronic Corporation
Most cited
By later US patents
- Method and apparatus for an optical function generator for seamless tiled displays52US 6,727,864 B1Honeywell International Inc. · 2004
- Image projection display apparatus using plural projectors and projected image compensation apparatus50US 6,558,006 B2Olympus Optical Co., Ltd. · 2003
- Optical and electrical blending of display images31US 7,339,625 B2Barco N.V. · 2008
- Projector19US 7,824,039 B2Brother Kogyo Kabushiki Kaisha · 2010
- Image control system14US 6,471,355 B1Lockheed Martin Corporation · 2002