G03G 5/0637
Containing one hetero atom
Official title: {containing one hetero atom}
G03G5/0637 (Containing one hetero atom) appears on 178 US grants and 61 published applications in this corpus.
Search patents in G03G- Granted patents
- 178
- Published applications
- 61
- Assignees
- 51
- Inventors
- 382
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 8 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 9 | 0 |
| 1991 | 14 | 0 |
| 1992 | 8 | 0 |
| 1993 | 10 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 2 |
| 2003 | 3 | 3 |
| 2004 | 2 | 8 |
| 2005 | 2 | 7 |
| 2006 | 3 | 9 |
| 2007 | 7 | 2 |
| 2008 | 6 | 6 |
| 2009 | 3 | 6 |
| 2010 | 4 | 0 |
| 2011 | 5 | 3 |
| 2012 | 5 | 2 |
| 2013 | 1 | 0 |
| 2014 | 1 | 2 |
| 2015 | 2 | 3 |
| 2016 | 1 | 0 |
| 2017 | 1 | 2 |
| 2018 | 1 | 2 |
| 2019 | 3 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Hydrazone containing charge transport element and photoconductive process of using same191US 4,150,987 AInternational Business Machines Corporation · 1979
- Electrophotographic element with a phenyhydrazone charge transport layer74US 4,338,388 ARicoh Company, Ltd. · 1982
- Charge transfer layer with styryl hydrazones72US 4,385,106 ARicoh Company, Ltd. · 1983
- Derivatives of 4H-thiopyran-1,1-dioxides56US 4,968,813 AEastman Kodak Company · 1990
- Electrophotographic photoconductor, image forming apparatus, and process cartridge using the photoconductor48US 6,492,079 B2Ricoh Company, Ltd. · 2002