G03G 15/10
Using a liquid developer
Official title: using a liquid developer
G03G15/10 (Using a liquid developer) appears on 1,689 US grants and 1,119 published applications in this corpus.
Search patents in G03G- Granted patents
- 1,689
- Published applications
- 1,119
- Assignees
- 191
- Inventors
- 2,143
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 45 | 0 |
| 1977 | 31 | 0 |
| 1978 | 19 | 0 |
| 1979 | 23 | 0 |
| 1980 | 22 | 0 |
| 1981 | 30 | 0 |
| 1982 | 11 | 0 |
| 1983 | 13 | 0 |
| 1984 | 9 | 0 |
| 1985 | 11 | 0 |
| 1986 | 17 | 0 |
| 1987 | 22 | 0 |
| 1988 | 29 | 0 |
| 1989 | 23 | 0 |
| 1990 | 17 | 0 |
| 1991 | 32 | 0 |
| 1992 | 21 | 0 |
| 1993 | 14 | 0 |
| 1994 | 20 | 0 |
| 1995 | 25 | 0 |
| 1996 | 33 | 0 |
| 1997 | 23 | 0 |
| 1998 | 42 | 0 |
| 1999 | 61 | 0 |
| 2000 | 72 | 0 |
| 2001 | 52 | 22 |
| 2002 | 46 | 33 |
| 2003 | 42 | 38 |
| 2004 | 40 | 50 |
| 2005 | 26 | 46 |
| 2006 | 41 | 64 |
| 2007 | 32 | 32 |
| 2008 | 32 | 45 |
| 2009 | 21 | 68 |
| 2010 | 47 | 40 |
| 2011 | 41 | 46 |
| 2012 | 37 | 39 |
| 2013 | 34 | 40 |
| 2014 | 39 | 42 |
| 2015 | 50 | 44 |
| 2016 | 60 | 56 |
| 2017 | 42 | 41 |
| 2018 | 41 | 63 |
| 2019 | 69 | 89 |
| 2020 | 83 | 69 |
| 2021 | 46 | 57 |
| 2022 | 45 | 43 |
| 2023 | 16 | 16 |
| 2024 | 24 | 22 |
| 2025 | 10 | 6 |
| 2026 | 8 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Image forming apparatus1 Sep 2026US 12,724,360 B2Ricoh Company, Ltd.
- Electrophotographic ink compositions11 Aug 2026US 12,704,796 B2Hewlett-Packard Development Company, L. P.
- Providing system, providing method, and management device9 Jun 2026US 12,649,317 B2Seiko Epson Corporation
- Image transfer for liquid electro-photographic printing5 May 2026US 12,619,176 B2Hewlett-Packard Development Company, L. P.
- Servicing print blankets14 Apr 2026US 12,601,993 B2Hewlett-Packard Development Company, L. P.
- Medium processing apparatus, image forming apparatus, and image forming system10 Sep 2026US 2026/0264412 A1Etria Co., Ltd.
- Photoconductive sleeve supports3 Sep 2026US 2026/0259527 A1Hewlett-Packard Development Company, L. P.
- Lep printing device bid assembly constant current mode27 Aug 2026US 2026/0252002 A1Hewlett-Packard Development Company, L. P.
- Reducing particle size distribution in a printing fluid16 Jul 2026US 2026/0202774 A1Hewlett-Packard Development Company, L. P.
- Medium processing apparatus and image forming system18 Jun 2026US 2026/0169404 A1Ricoh Company, Ltd.
Most cited
By later US patents
- Replaceable part with integral memory for usage, calibration and other data311US 5,835,817 AHewlett-Packard Company · 1998
- Replaceable part with integral memory for usage, calibration and other data276US 5,699,091 AHewlett-Packard Company · 1997
- Method and apparatus for removing excess developing liquid from photoconductive surfaces148US 4,286,039 ASavin Corporation · 1981
- Electrical and fluidic interface for an ink supply144US 6,203,147 B1Hewlett-Packard Company · 2001
- Method and apparatus for storing information on a replaceable ink container131US 6,065,824 AHewlett-Packard Company · 2000