G03G
Electrography
Official title: Electrography; electrophotography; magnetography
G03G (Electrography) appears on 86,085 US grants and 66,626 published applications in this corpus.
Search patents in G03G- Granted patents
- 86,085
- Published applications
- 66,626
- Assignees
- 2,827
- Inventors
- 49,760
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 815 | 0 |
| 1977 | 674 | 0 |
| 1978 | 627 | 0 |
| 1979 | 461 | 0 |
| 1980 | 492 | 0 |
| 1981 | 678 | 0 |
| 1982 | 560 | 0 |
| 1983 | 621 | 0 |
| 1984 | 672 | 0 |
| 1985 | 773 | 0 |
| 1986 | 796 | 0 |
| 1987 | 843 | 0 |
| 1988 | 842 | 0 |
| 1989 | 1158 | 0 |
| 1990 | 1253 | 0 |
| 1991 | 1345 | 0 |
| 1992 | 1478 | 0 |
| 1993 | 1479 | 0 |
| 1994 | 1420 | 0 |
| 1995 | 1273 | 0 |
| 1996 | 1613 | 0 |
| 1997 | 1411 | 0 |
| 1998 | 1955 | 0 |
| 1999 | 1860 | 0 |
| 2000 | 1791 | 0 |
| 2001 | 1669 | 527 |
| 2002 | 1585 | 1570 |
| 2003 | 1508 | 1963 |
| 2004 | 1497 | 2169 |
| 2005 | 1365 | 2644 |
| 2006 | 1793 | 3140 |
| 2007 | 1872 | 3373 |
| 2008 | 1976 | 3463 |
| 2009 | 2029 | 3687 |
| 2010 | 2739 | 3265 |
| 2011 | 2989 | 3636 |
| 2012 | 3267 | 3249 |
| 2013 | 3519 | 3207 |
| 2014 | 3908 | 3120 |
| 2015 | 3964 | 3254 |
| 2016 | 3558 | 2926 |
| 2017 | 2698 | 2995 |
| 2018 | 2745 | 2733 |
| 2019 | 2799 | 2393 |
| 2020 | 2417 | 2410 |
| 2021 | 1964 | 2094 |
| 2022 | 1780 | 2089 |
| 2023 | 1686 | 1883 |
| 2024 | 1523 | 1726 |
| 2025 | 1368 | 1786 |
| 2026 | 977 | 1324 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- G03G 15/00Apparatus for electrographic processes using a charge pattern63,430
- G03G 2215/00Apparatus for electrophotographic processesIndexing code28,601
- G03G 21/00Arrangements not provided for by groups g03g13/00 - g03g19/0017,991
- G03G 9/00Developers9,756
- G03G 2221/00Processes not provided for by group g03g2215/00Indexing code8,425
- G03G 5/00Recording-members for original recording by exposure7,242
- G03G 13/00Electrographic processes using a charge pattern1,967
- G03G 7/00Selection of materials for use in image-receiving members, i.e. for reversal by954
All 14 main groupsShow fewer
- G03G 17/00Electrographic processes using patterns other than charge patterns373
- G03G 2217/00Details of electrographic processes using patterns other than charge patternsIndexing code296
- G03G 8/00Layers covering the final reproduction200
- G03G 19/00Processes using magnetic patterns196
- G03G 11/00Selection of substances for use as fixing agents101
- G03G 16/00Electrographic processes using deformation of thermoplastic layers65
Recent patents
- Casing for optical scanning device, including positioning mechanism that positions main body on upper side with respect to main body on lower side, in horizontal and height directions, and optical scanning device having such casing6 Oct 2026US 12,752,559 B2KYOCERA Document Solutions Inc.
- Toner, toner production method, and image-forming method6 Oct 2026US 12,754,489 B2Canon Kabushiki Kaisha
- Electrostatic image development toner6 Oct 2026US 12,754,490 B2Zeon Corporation
- Carrier core material and electrophotographic development carrier using same and electrophotographic developer6 Oct 2026US 12,754,491 B2Dowa Electronics Materials Co., Ltd.
- Image carrier unit and image forming apparatus6 Oct 2026US 12,754,492 B2FUJIFILM Business Innovation Corp.
- Method for manufacturing optical element, and optical element8 Oct 2026US 2026/0307345 A1Canon Kabushiki Kaisha
- Toner, developer, toner storage unit, image forming apparatus, and image forming method8 Oct 2026US 2026/0310110 A1
- Positively chargeable toner and two-component developer containing positively chargeable toner8 Oct 2026US 2026/0310111 A1KYOCERA Document Solutions Inc.
- Positively chargeable toner and two-component developer containing positively chargeable toner8 Oct 2026US 2026/0310112 A1KYOCERA Document Solutions Inc.
- Positively chargeable toner and two-component developer containing positively chargeable toner8 Oct 2026US 2026/0310113 A1KYOCERA Document Solutions Inc.
Most cited
By later US patents
- Implantable device and methods for delivering drugs and other substances to treat sinusitis and other disorders1,387US 7,361,168 B2Acclarent, Inc. · 2008
- Image read device and copier1,024US 8,599,450 B2Ricoh Company, Ltd. · 2013
- Electronic printer having wireless power and communications connections to accessory units794US 6,055,062 AHewlett-Packard Company · 2000
- Imaging system with a diamine charge transport material in a polycarbonate resin688US 4,265,990 AXerox Corporation · 1981
- Variable thickness set compensation for stapler637US 4,421,264 AInternational Business Machines Corporation · 1983