G03G 2215/0658
Liquid developer devices
G03G2215/0658 (Liquid developer devices) appears on 95 US grants and 106 published applications in this corpus.
Search patents in G03G- Granted patents
- 95
- Published applications
- 106
- Assignees
- 32
- Inventors
- 250
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 8 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 5 |
| 2003 | 5 | 2 |
| 2004 | 0 | 5 |
| 2005 | 4 | 7 |
| 2006 | 4 | 7 |
| 2007 | 3 | 8 |
| 2008 | 5 | 8 |
| 2009 | 5 | 15 |
| 2010 | 8 | 5 |
| 2011 | 3 | 2 |
| 2012 | 5 | 1 |
| 2013 | 2 | 1 |
| 2014 | 3 | 2 |
| 2015 | 2 | 1 |
| 2016 | 2 | 1 |
| 2017 | 1 | 3 |
| 2018 | 2 | 4 |
| 2019 | 6 | 10 |
| 2020 | 9 | 9 |
| 2021 | 7 | 5 |
| 2022 | 4 | 1 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Developing apparatus14 Apr 2026US 12,602,007 B2Samsung Electronics Co., Ltd.
- Heating for a printing drum24 Dec 2024US 12,174,561 B2Hewlett-Packard Development Company, L. P.
- Image forming apparatus including a developing device that develops an electrostatic latent image18 Oct 2022US 11,474,465 B2Canon Kabushiki Kaisha
- Apparatus for use in an electrographic printer2 Aug 2022US 11,402,771 B2HP Indigo B. V.
- Image formation with image-receiving holder and image formation medium19 Jul 2022US 11,392,062 B2Hewlett-Packard Development Company, L. P.
- 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.
- Developing apparatus28 Dec 2023US 2023/0418222 A1Sti Co., Ltd.
- Heating for a printing drum11 May 2023US 2023/0148288 A1Hewlett-Packard Development Company, L. P.
- Thermally conductive pipe, thermal processing device, and processing system23 Jun 2022US 2022/0197190 A1FUJIFILM Business Innovation Corp.
Most cited
By later US patents
- Device and method for forming full-color images37US 5,953,559 ARicoh Company, Ltd. · 1999
- Ink delivery system for liquid electrophotographic color printer including recycling capability for carrier22US 5,933,689 ASamsung Electronics Co., Ltd. · 1999
- Wet-type electrophotography apparatus, using non-volatile, high viscosity, high concentration liquid toner15US 6,308,034 B1Pfu Limited · 2001
- Color image forming method and apparatus providing for efficient toner transfer based on toner zeta potentials9US 5,953,566 AMinolta Co., Ltd. · 1999
- Full-color electrophotographic apparatus using liquid toner containing resin9US 6,996,361 B2Pfu Limited · 2006