G03B 27/34
Means for automatic focusing therefor
G03B27/34 (Means for automatic focusing therefor) appears on 97 US grants and 16 published applications in this corpus.
Search patents in G03B- Granted patents
- 97
- Published applications
- 16
- Assignees
- 47
- Inventors
- 161
- Latest grant
- 19 Oct 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 8 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 2 | 2 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 3 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Automatic microform carrier systems and methods19 Oct 2021US 11,150,544 B2e-ImageData Corp.
- Exposure method7 May 2019US 10,281,828 B2Kabushiki Kaisha Tokai Rika Denki Seisakusho
- Level sensor, a method for determining a height map of a substrate using a selected resolution, and a lithographic apparatus8 Nov 2016US 9,488,465 B2ASML Netherlands B. V.
- Lithographic apparatus and device manufacturing method22 Dec 2015US 9,217,916 B2ASML Netherlands B. V.
- Digital microform imaging apparatus24 Nov 2015US 9,197,766 B2e-ImageData Corp.
- Photographing method, camera module, and electronic device13 Oct 2022US 2022/0329735 A1Huawei Technologies Co., Ltd.
- Printing system using a projection device14 Jul 2022US 2022/0221781 A1OSWAL, Ashok
- Automatic microform carrier systems and methods24 Oct 2019US 2019/0324354 A1e-lmageData Corp.
- Digital microform imaging apparatus27 Dec 2018US 2018/0372989 A1e-ImageData Corp.
- Exposure method22 Nov 2018US 2018/0335688 A1Kabushiki Kaisha Tokai Rika Denki Seisakusho
Most cited
By later US patents
- Exposure apparatus and method of controlling the same44US 6,501,532 B2Canon Kabushiki Kaisha · 2002
- Image projector apparatus having automatic focus control system25US 4,988,187 AMinolta Camera Kabushiki Kaisha · 1991
- Apparatus for correcting focal point according to lens temperature23US 5,124,738 AHirakawa Kogyosha Co., Ltd. · 1992
- Method and apparatus for the manufacture of printing plates15US 4,006,984 AHoechst Aktiengesellschaft · 1977
- Optical system for projecting patterns comprising a constant-magnification focusing servocontrol15US 4,140,392 AThomson-CSF · 1979