H01J 29/898
Spectral filters
Official title: {Spectral filters}
H01J29/898 (Spectral filters) appears on 83 US grants and 31 published applications in this corpus.
Search patents in H01J- Granted patents
- 83
- Published applications
- 31
- Assignees
- 45
- Inventors
- 190
- Latest grant
- 23 Nov 2010
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 2 |
| 2002 | 2 | 4 |
| 2003 | 2 | 2 |
| 2004 | 3 | 6 |
| 2005 | 3 | 5 |
| 2006 | 4 | 6 |
| 2007 | 3 | 3 |
| 2008 | 2 | 1 |
| 2009 | 1 | 2 |
| 2010 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Display panel and display device having color filter elements with color filter protective layer23 Nov 2010US 7,839,063 B2Sony Corporation
- Color filter, method of manufacturing a color filter, display apparatus, electro-optical apparatus, and electronic appliance17 Mar 2009US 7,504,766 B2Seiko Epson Corporation
- Flat display device4 Mar 2008US 7,339,319 B2Fujitsu Limited
- Optical filter and display apparatus with the same12 Feb 2008US 7,329,981 B2Kabushiki Kaisha Toshiba
- Color cathode-ray tube5 Jun 2007US 7,227,302 B2Matsushita Toshiba Picture Display Co., Ltd.
- Display panel3 Sep 2009US 2009/0220798 A1
- Filter for display apparatus5 Mar 2009US 2009/0058250 A1Samsung Corning Precision Glass Co., Ltd.
- Color conversion substrate and color display3 Jan 2008US 2008/0001528 A1Idemitsu Kosan Co., Ltd.
- Carbon nanotube field emitting display27 Sep 2007US 2007/0222354 A1
- Flat display device7 Jun 2007US 2007/0126362 A1Fujitsu Limited
Most cited
By later US patents
- Contrast enhancing transparent touch panel device254US 4,958,148 AElmwood Sensors, Inc. · 1990
- Eye comfort panel107US 4,929,865 AVisual Ease, Inc. · 1990
- Double layered optical low pass filter permitting improved image resolution77US 4,009,939 AMinolta Camera Kabushiki Kaisha · 1977
- Absorption filters for chlor display devices70US 5,121,030 AHoneywell Inc. · 1992
- Flat panel display device66US 6,031,328 AKabushiki Kaisha Toshiba · 2000