G03C 8/48
Characterised by substances used for masking the image-forming section
Official title: characterised by substances used for masking the image-forming section
G03C8/48 (Characterised by substances used for masking the image-forming section) appears on 93 US grants and 2 published applications in this corpus.
Search patents in G03C- Granted patents
- 93
- Published applications
- 2
- Assignees
- 6
- Inventors
- 74
- Latest grant
- 19 Sep 2006
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 9 | 0 |
| 1978 | 2 | 0 |
| 1979 | 9 | 0 |
| 1980 | 8 | 0 |
| 1981 | 20 | 0 |
| 1982 | 6 | 0 |
| 1983 | 1 | 0 |
| 1984 | 8 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Instant film unit19 Sep 2006US 7,108,950 B2Fuji Photo Film Co., Ltd.
- Diffusion transfer photographic film unit1 Apr 2003US 6,541,177 B1Polaroid Corporation
- Photographic products and processes15 Aug 2000US 6,103,912 APolaroid Corporation
- Photographic element and method8 Aug 2000US 6,100,005 APolaroid Corporation
- Diffusion transfer photosensitive film unit for silver transfer image12 Jan 1999US 5,858,608 APolaroid Corporation
Most cited
By later US patents
- Method for preparing lamellar pigments41US 4,168,986 APolaroid Corporation · 1979
- Photographic products and processes with a pH sensitive xanthene light screening dye24US 4,345,017 APolaroid Corporation · 1982
- Method of preparing styryl-like compounds22US 4,147,862 AMatsushita Electric Industrial Co., Ltd. · 1979
- 3,6-Di(alkyl/phenyl)amino-9-carboxamidophenyl-xanthenes20US 4,290,955 APolaroid Corporation · 1981
- Photographic prints utilizing lamellar pigment materials19US 4,269,916 APolaroid Corporation · 1981