G03G 15/08
Using a solid developer
Official title: using a solid developer, e.g. powder developer
G03G15/08 (Using a solid developer) appears on 14,710 US grants and 12,060 published applications in this corpus.
Search patents in G03G- Granted patents
- 14,710
- Published applications
- 12,060
- Assignees
- 589
- Inventors
- 11,534
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 88 | 0 |
| 1977 | 69 | 0 |
| 1978 | 66 | 0 |
| 1979 | 44 | 0 |
| 1980 | 57 | 0 |
| 1981 | 83 | 0 |
| 1982 | 72 | 0 |
| 1983 | 77 | 0 |
| 1984 | 89 | 0 |
| 1985 | 105 | 0 |
| 1986 | 123 | 0 |
| 1987 | 110 | 0 |
| 1988 | 85 | 0 |
| 1989 | 147 | 0 |
| 1990 | 180 | 0 |
| 1991 | 199 | 0 |
| 1992 | 183 | 0 |
| 1993 | 200 | 0 |
| 1994 | 158 | 0 |
| 1995 | 158 | 0 |
| 1996 | 222 | 0 |
| 1997 | 197 | 0 |
| 1998 | 294 | 0 |
| 1999 | 271 | 0 |
| 2000 | 249 | 0 |
| 2001 | 241 | 98 |
| 2002 | 250 | 222 |
| 2003 | 231 | 255 |
| 2004 | 216 | 328 |
| 2005 | 219 | 392 |
| 2006 | 310 | 448 |
| 2007 | 323 | 526 |
| 2008 | 302 | 573 |
| 2009 | 322 | 648 |
| 2010 | 497 | 494 |
| 2011 | 571 | 560 |
| 2012 | 551 | 507 |
| 2013 | 535 | 551 |
| 2014 | 631 | 540 |
| 2015 | 711 | 578 |
| 2016 | 674 | 526 |
| 2017 | 505 | 598 |
| 2018 | 579 | 576 |
| 2019 | 626 | 515 |
| 2020 | 575 | 573 |
| 2021 | 490 | 583 |
| 2022 | 486 | 470 |
| 2023 | 412 | 427 |
| 2024 | 349 | 400 |
| 2025 | 360 | 401 |
| 2026 | 218 | 271 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G03G 15/0822Arrangements for preparing, mixing, supplying or dispensing developer9,149
- G03G 15/0806On a donor element3,620
- G03G 15/09Using magnetic brush1,993
- G03G 15/0896Arrangements or disposition of the complete developer unit or parts thereof not1,665
- G03G 15/0894Reconditioning of the developer unit, i.e. reusing or recycling parts of the520
- G03G 15/095Removing excess solid developer224
- G03G 15/0803In a powder cloud156
- G03G 15/0801For cascading15
All 10 subgroupsShow fewer
Recent patents
- Toner, toner production method, and image-forming method6 Oct 2026US 12,754,489 B2Canon Kabushiki Kaisha
- Carrier core material and electrophotographic development carrier using same and electrophotographic developer6 Oct 2026US 12,754,491 B2Dowa Electronics Materials Co., Ltd.
- Developing cartridge6 Oct 2026US 12,754,494 B2Brother Kogyo Kabushiki Kaisha
- Image forming apparatus29 Sep 2026US 12,748,361 B2Canon Kabushiki Kaisha
- Roller driving apparatus used in image forming apparatus29 Sep 2026US 12,748,363 B2Canon Kabushiki Kaisha
- Sleeve, developer carrying member, and developing device8 Oct 2026US 2026/0310116 A1Canon Kabushiki Kaisha
- Image forming apparatus8 Oct 2026US 2026/0310117 A1Canon Kabushiki Kaisha
- Electrostatic charge image developing toner set, electrostatic charge image developer set, toner cartridge set, process cartridge, and image forming apparatus1 Oct 2026US 2026/0299451 A1FUJIFILM Business Innovation Corp.
- Developing device and image forming apparatus1 Oct 2026US 2026/0299460 A1FUJIFILM Business Innovation Corp.
- Developing device and image forming apparatus1 Oct 2026US 2026/0299461 A1FUJIFILM Business Innovation Corp.
Most cited
By later US patents
- Replaceable part with integral memory for usage, calibration and other data311US 5,835,817 AHewlett-Packard Company · 1998
- Arrangement for printer equipment for monitoring reservoirs that contain printing medium284US 5,365,312 AMannesmann Aktiengesellschaft · 1994
- Method of calibrating a spatial light modulator printing system280US 5,842,088 ATexas Instruments Incorporated · 1998
- Replaceable part with integral memory for usage, calibration and other data276US 5,699,091 AHewlett-Packard Company · 1997
- Process cartridge and electrophotographic image forming apparatus255US 5,920,753 ACanon Kabushiki Kaisha · 1999