G03B 21/43
Driving mechanisms
G03B21/43 (Driving mechanisms) appears on 113 US grants and 30 published applications in this corpus.
Search patents in G03B- Granted patents
- 113
- Published applications
- 30
- Assignees
- 54
- Inventors
- 168
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 11 | 0 |
| 1978 | 17 | 0 |
| 1979 | 7 | 0 |
| 1980 | 8 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 6 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 2 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 3 | 2 |
| 2019 | 2 | 4 |
| 2020 | 2 | 2 |
| 2021 | 2 | 6 |
| 2022 | 5 | 2 |
| 2023 | 2 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Projection device23 Jun 2026US 12,663,699 B1
- Projector assembly5 May 2026US 12,619,139 B1
- Projection lamp for projecting a nebula and a starry sky15 Aug 2023US 11,725,798 B2Xiamen Longstar Lighting Co., Ltd.
- Projection structure, projection method, and corresponding vehicle lamp and vehicle10 Jan 2023US 11,549,660 B2Valeo Vision
- Optical module and projection apparatus15 Nov 2022US 11,500,279 B2Coretronic Corporation
- Projection device28 Dec 2023US 2023/0418145 A1Panasonic Intellectual Property Management Co., Ltd.
- Projection lamp for projecting a nebula and a starry sky1 Dec 2022US 2022/0381412 A1Xiamen Longstar Lighting Co., Ltd.
- Projection structure, projection method, and corresponding vehicle lamp and vehicle20 Jan 2022US 2022/0018515 A1Valeo Vision
- Optical module and projection device28 Oct 2021US 2021/0333695 A1Coretronic Corporation
- Projector recommendation method and projector recommendation system22 Jul 2021US 2021/0223673 A1Benq Corporation
Most cited
By later US patents
- Intermittent film drive for motion picture projector20US 4,022,525 AEprad Incorporated · 1977
- Motion picture projector system17US 4,150,886 AAirborne Mfg. Co. · 1979
- Electronic projector16US 4,697,896 AShowscan Film Corporation · 1987
- Method for transitioning between two different frame rates during a showing of a single motion picture film16US 5,096,286 A1992
- Film web motion control system15US 6,068,206 AEastman Kodak Company · 2000