G03B 27/545
For enlargers
Official title: {for enlargers}
G03B27/545 (For enlargers) appears on 118 US grants and 29 published applications in this corpus.
Search patents in G03B- Granted patents
- 118
- Published applications
- 29
- Assignees
- 67
- Inventors
- 179
- Latest grant
- 11 Feb 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 8 | 0 |
| 1978 | 8 | 0 |
| 1979 | 2 | 0 |
| 1980 | 8 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 7 | 0 |
| 1984 | 6 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 3 | 2 |
| 2004 | 4 | 1 |
| 2005 | 1 | 2 |
| 2006 | 0 | 8 |
| 2007 | 1 | 3 |
| 2008 | 4 | 3 |
| 2009 | 0 | 1 |
| 2010 | 2 | 3 |
| 2011 | 2 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 2 |
| 2018 | 3 | 2 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Color calibration of color image rendering devices11 Feb 2020US 10,560,676 B2Rah Color Technologies LLC
- Color calibration of color image rendering devices31 Jul 2018US 10,038,884 B2Rah Color Technologies LLC
- Light source device with light splitting mirror and reflection mirror for reducing influence on uniformity of intensity distribution of beam flux, and projection device22 May 2018US 9,977,319 B2Casio Computer Co., Ltd.
- Color calibration of color image rendering devices13 Feb 2018US 9,894,340 B2Rah Color Technologies LLC
- Color calibration of color image rendering devices6 Dec 2016US 9,516,288 B2Rah Color Technologies LLC
- Color calibration of color image rendering devices20 Dec 2018US 2018/0367773 A1Rah Color Technologies LLC
- Color calibration of color image rendering devices21 Jun 2018US 2018/0176529 A1Rah Color Technologies LLC
- Light source device and projection device22 Jun 2017US 2017/0176845 A1Casio Computer Co., Ltd.
- Color calibration of color image rendering devices23 Mar 2017US 2017/0085852 A1Rah Color Technologies LLC
- Color calibration of color image rendering devices25 Feb 2016US 2016/0057399 A1Rah Color Technologies LLC
Most cited
By later US patents
- Colored light source providing intensification of initial source illumination139US 5,255,171 A1993
- Projector light source utilizing a solid state green light source124US 6,212,213 B1Agilent Technologies, Inc. · 2001
- Color calibration of color image rendering devices74US 7,728,845 B2Rah Color Technologies LLC · 2010
- Color filter changer52US 4,984,143 AMorpheus Lights, Inc. · 1991
- Solid state based illumination source for a projection display51US 6,325,524 B1Agilent Technologies, Inc. · 2001