G03G 15/321
By charge transfer onto the recording material in accordance with the image
Official title: {by charge transfer onto the recording material in accordance with the image}
G03G15/321 (By charge transfer onto the recording material in accordance with the image) appears on 249 US grants and 41 published applications in this corpus.
Search patents in G03G- Granted patents
- 249
- Published applications
- 41
- Assignees
- 89
- Inventors
- 391
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 6 | 0 |
| 1978 | 7 | 0 |
| 1979 | 11 | 0 |
| 1980 | 5 | 0 |
| 1981 | 7 | 0 |
| 1982 | 8 | 0 |
| 1983 | 2 | 0 |
| 1984 | 8 | 0 |
| 1985 | 11 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 8 | 0 |
| 1989 | 20 | 0 |
| 1990 | 11 | 0 |
| 1991 | 10 | 0 |
| 1992 | 14 | 0 |
| 1993 | 14 | 0 |
| 1994 | 10 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 11 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 5 |
| 2003 | 2 | 1 |
| 2004 | 2 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 5 |
| 2007 | 2 | 1 |
| 2008 | 1 | 3 |
| 2009 | 1 | 1 |
| 2010 | 1 | 1 |
| 2011 | 2 | 6 |
| 2012 | 0 | 3 |
| 2013 | 5 | 5 |
| 2014 | 6 | 1 |
| 2015 | 4 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 3 |
| 2018 | 3 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Thermal transfer printing26 Aug 2025US 12,397,573 B2Landa Labs (2012) Ltd.
- Semiconductor light-emitting device, exposure head, and image forming apparatus17 Aug 2021US 11,092,910 B2Canon Kabushiki Kaisha
- Image forming apparatus25 Jun 2019US 10,331,064 B2Canon Kabushiki Kaisha
- Image forming apparatus14 Aug 2018US 10,048,641 B2KYOCERA Document Solutions Inc.
- ION writing unit with heating13 Mar 2018US 9,914,310 B2Hewlett-Packard Development Company, L. P.
- Scanning printer including electrostatic discharge3 Nov 2022US 2022/0350284 A1Hewlett-Packard Development Company, L. P.
- Thermal transfer printing2 Jun 2022US 2022/0169059 A1Landa Labs (2012) Ltd.
- Semiconductor light-emitting device, exposure head, and image forming apparatus8 Oct 2020US 2020/0319582 A1Canon Kabushiki Kaisha
- Image forming apparatus24 May 2018US 2018/0143573 A1Canon Kabushiki Kaisha
- Image forming apparatus16 Nov 2017US 2017/0329275 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- Memory element for information storage and retrieval system and associated process182US 4,800,526 AGAF Corporation · 1989
- System, method and process for fabrication of 3-dimensional objects by a static electrostatic imaging and lamination device114US 5,593,531 ATexas Instruments Incorporated · 1997
- Three electrode system in the generation of electrostatic images112US 4,160,257 ADennison Manufacturing Company · 1979
- Apparatus for electrostatically depositing a medicament powder upon predefined regions of a substrate107US 5,714,007 ADavid Sarnoff Research Center, Inc. · 1998
- High precision charge imaging cartridge96US 5,315,324 ADelphax Systems · 1994