G03G 13/08
Using a solid developer
Official title: using a solid developer, e.g. powder developer
G03G13/08 (Using a solid developer) appears on 527 US grants and 157 published applications in this corpus.
Search patents in G03G- Granted patents
- 527
- Published applications
- 157
- Assignees
- 78
- Inventors
- 1,141
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 16 | 0 |
| 1982 | 7 | 0 |
| 1983 | 7 | 0 |
| 1984 | 7 | 0 |
| 1985 | 10 | 0 |
| 1986 | 14 | 0 |
| 1987 | 26 | 0 |
| 1988 | 6 | 0 |
| 1989 | 20 | 0 |
| 1990 | 18 | 0 |
| 1991 | 21 | 0 |
| 1992 | 26 | 0 |
| 1993 | 22 | 0 |
| 1994 | 20 | 0 |
| 1995 | 23 | 0 |
| 1996 | 23 | 0 |
| 1997 | 27 | 0 |
| 1998 | 29 | 0 |
| 1999 | 17 | 0 |
| 2000 | 28 | 0 |
| 2001 | 14 | 7 |
| 2002 | 13 | 25 |
| 2003 | 23 | 32 |
| 2004 | 20 | 6 |
| 2005 | 14 | 5 |
| 2006 | 7 | 2 |
| 2007 | 2 | 2 |
| 2008 | 0 | 6 |
| 2009 | 2 | 10 |
| 2010 | 2 | 4 |
| 2011 | 4 | 3 |
| 2012 | 3 | 3 |
| 2013 | 2 | 16 |
| 2014 | 11 | 16 |
| 2015 | 12 | 6 |
| 2016 | 8 | 4 |
| 2017 | 2 | 3 |
| 2018 | 4 | 2 |
| 2019 | 2 | 2 |
| 2020 | 2 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Carrier, developer, image forming method, and process cartridge29 Jul 2025US 12,372,893 B2Ricoh Company, Ltd.
- Method of printing parts with a high-performance consumable materials with electrophotography based additive manufacturing system19 Oct 2021US 11,150,570 B2Evolve Additive Solutions, Inc.
- Image forming method21 Apr 2020US 10,627,733 B2Konica Minolta, Inc.
- Image forming method21 Apr 2020US 10,627,734 B2Konica Minolta, Inc.
- Toner, toner stored unit, image forming apparatus, and image forming method18 Jun 2019US 10,324,388 B2Ricoh Company, Ltd.
- Process cartridge23 Apr 2026US 2026/0110985 A1Canon Kabushiki Kaisha
- Carrier, developer, image forming method, and process cartridge29 Jun 2023US 2023/0205108 A1Ricoh Company, Ltd.
- Controlling supply of magnetic material3 Feb 2022US 2022/0035272 A1Hewlett-Packard Development Company, L. P.
- Image forming method20 Jun 2019US 2019/0187577 A1Konica Minolta, Inc.
- Image forming method30 May 2019US 2019/0163095 A1Konica Minolta, Inc.
Most cited
By later US patents
- Magnetic developing method under A.C. electrical bias and apparatus therefor77US 4,292,387 ACanon Kabushiki Kaisha · 1981
- Process for developing electrographic images by causing electrical breakdown in the developer74US 4,076,857 AEastman Kodak Company · 1978
- Apparatus for forming an electrophotographic latent image74US 4,967,231 AElectric Co., Ltd. · 1990
- Image forming apparatus and an image forming process unit72US 6,505,014 B2Ricoh Company, Ltd. · 2003
- Method of selectively glossing toner images70US 5,234,783 AEastman Kodak Company · 1993