G03B 27/6221
Transparent copy platens
Official title: {Transparent copy platens}
G03B27/6221 (Transparent copy platens) appears on 149 US grants and 7 published applications in this corpus.
Search patents in G03B- Granted patents
- 149
- Published applications
- 7
- Assignees
- 56
- Inventors
- 270
- Latest grant
- 29 Mar 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 6 | 0 |
| 1978 | 12 | 0 |
| 1979 | 10 | 0 |
| 1980 | 7 | 0 |
| 1981 | 0 | 0 |
| 1982 | 9 | 0 |
| 1983 | 7 | 0 |
| 1984 | 11 | 0 |
| 1985 | 5 | 0 |
| 1986 | 8 | 0 |
| 1987 | 14 | 0 |
| 1988 | 7 | 0 |
| 1989 | 7 | 0 |
| 1990 | 8 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 2 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 2 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Cover glass and glass laminate29 Mar 2022US 11,286,201 B2AGC Inc.
- Scanner cover19 Nov 2019US 10,481,540 B2Kinpo Electronics, Inc.
- Image reading apparatus and image forming apparatus26 Mar 2019US 10,241,388 B1Kabushiki Kaisha Toshiba
- Image reading apparatus and image forming apparatus having a light adjusting member4 Sep 2012US 8,259,316 B2Oki Data Corporation
- Hinge device3 May 2005US 6,886,220 B2Katoh Electrical Machinery Co., Ltd.
- Image reading apparatus and image forming apparatus28 Mar 2019US 2019/0094677 A1Kabushiki Kaisha Toshiba
- Scanner cover25 Oct 2018US 2018/0307173 A1Kinpo Electronics, Inc.
- Cover glass and glass laminate2 Aug 2018US 2018/0215659 A1Asahi Glass Company, Limited
- Image Reading Apparatus and Image Forming Apparatus19 Mar 2009US 2009/0073480 A1Oki Data Corporation
- Image forming apparatus22 May 2008US 2008/0117404 A1Murata Machinery, Ltd.
Most cited
By later US patents
- Hinge structure for platen covers35US 4,114,236 AMinnesota Mining and Manufacturing Company · 1978
- Copying apparatus27US 4,742,374 ABrother Kogyo Kabushiki Kaisha · 1988
- Large document access for a scanning system of a copying machine26US 4,439,036 AThe Mead Corporation · 1984
- Flatbed-type scanner having a cover for an original document which can adjust height automatically24US 5,812,285 AMicrotek International Inc. · 1998
- Document pressing device for a copier23US 5,541,712 ARicoh Company, Ltd. · 1996