G03C 5/3028
Heterocyclic compounds
Official title: {Heterocyclic compounds (G03C5/3021 takes precedence)}
G03C5/3028 (Heterocyclic compounds) appears on 61 US grants and 6 published applications in this corpus.
Search patents in G03C- Granted patents
- 61
- Published applications
- 6
- Assignees
- 15
- Inventors
- 102
- Latest grant
- 6 Oct 2009
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 10 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 0 |
| 2003 | 1 | 3 |
| 2004 | 3 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Hologram silver halide photographic material, hologram and method for producing the same6 Oct 2009US 7,598,025 B2Dia Nippon Printing Co., Ltd.
- Method for developing a high contrast photographic material containing a polyhydrazide nucleating agent14 Sep 2004US 6,790,585 B2Eastman Kodak Company
- Stabilized black-and-white developing compositions and methods of use3 Feb 2004US 6,686,135 B2Eastman Kodak Company
- Ascorbic acid developing compositions containing sugar and methods of use6 Jan 2004US 6,673,528 B2Eastman Kodak Company
- Method of processing silver halide photographic light sensitive material25 Nov 2003US 6,653,060 B2Konica Corporation
- Hologram silver halide photographic material, hologram and method for producing the same26 Jul 2007US 2007/0172779 A1Dai Nippon Printing Co.Ltd.
- Method for developing a high contrast photographic material containing a polyhydrazide nucleating agent5 Feb 2004US 2004/0023149 A1Eastman Kodak Company
- Stabilized black-and-white developing compositions and methods of use28 Aug 2003US 2003/0162136 A1Eastman Kodak Company
- Ascorbic acid developing compositions containing sugar and methods of use14 Aug 2003US 2003/0152876 A1Eastman Kodak Company
- Stabilized black-and-white developing compositions and methods of use15 May 2003US 2003/0091944 A1Eastman Kodak Company
Most cited
By later US patents
- Photographic developers43US 4,128,425 APolaroid Corporation · 1978
- Hand-held processing container with vacuum creating assembly and kit for roomlight processing of black-and-white photographic elements26US 5,956,539 AEastman Kodak Company · 1999
- Method of forming a photographic dye image18US 4,481,268 AEastman Kodak Company · 1984
- Photothermographic imaging materials and sensitisers therefor18US 5,393,654 AMinnesota Mining and Manufacturing Company · 1995
- Development processing method18US 5,976,758 AFuji Photo Film Co., Ltd. · 1999