G03G 15/221
Machines other than electrographic copiers
Official title: {Machines other than electrographic copiers, e.g. electrophotographic cameras, electrostatic typewriters}
G03G15/221 (Machines other than electrographic copiers) appears on 628 US grants and 363 published applications in this corpus.
Search patents in G03G- Granted patents
- 628
- Published applications
- 363
- Assignees
- 154
- Inventors
- 1,056
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 8 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 10 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 11 | 0 |
| 1986 | 19 | 0 |
| 1987 | 22 | 0 |
| 1988 | 29 | 0 |
| 1989 | 33 | 0 |
| 1990 | 34 | 0 |
| 1991 | 26 | 0 |
| 1992 | 28 | 0 |
| 1993 | 22 | 0 |
| 1994 | 11 | 0 |
| 1995 | 7 | 0 |
| 1996 | 10 | 0 |
| 1997 | 13 | 0 |
| 1998 | 10 | 0 |
| 1999 | 13 | 0 |
| 2000 | 14 | 0 |
| 2001 | 3 | 1 |
| 2002 | 8 | 10 |
| 2003 | 6 | 2 |
| 2004 | 5 | 6 |
| 2005 | 5 | 3 |
| 2006 | 2 | 8 |
| 2007 | 3 | 4 |
| 2008 | 0 | 5 |
| 2009 | 5 | 6 |
| 2010 | 5 | 4 |
| 2011 | 6 | 9 |
| 2012 | 3 | 16 |
| 2013 | 10 | 19 |
| 2014 | 19 | 22 |
| 2015 | 12 | 28 |
| 2016 | 11 | 23 |
| 2017 | 20 | 55 |
| 2018 | 33 | 30 |
| 2019 | 27 | 25 |
| 2020 | 25 | 35 |
| 2021 | 25 | 15 |
| 2022 | 15 | 12 |
| 2023 | 14 | 12 |
| 2024 | 11 | 8 |
| 2025 | 2 | 5 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Three-dimensional printed composite articles4 Aug 2026US 12,697,798 B2Impossible Objects, Inc.
- Water dispersible polymer for use in additive manufacturing12 May 2026US 12,624,161 B2Stratasys, Inc.
- Image forming apparatus with antimicrobial toner10 Feb 2026US 12,547,108 B2Canon Kabushiki Kaisha
- Image forming system7 Oct 2025US 12,436,487 B2Canon Kabushiki Kaisha
- Apparatus and methods for dispensing powder22 Apr 2025US 12,280,541 B2Alchemie Technology Limited
- Additive manufacturing system and method with improved structure4 Dec 2025US 2025/0367873 A1
- Imaging devices, apparatus, and methods for the development of image recording media14 Aug 2025US 2025/0258457 A1
- Additive manufacturing system and method with smooth surface27 Feb 2025US 2025/0065559 A1
- Image forming apparatus30 Jan 2025US 2025/0036058 A1Canon Kabushiki Kaisha
- Method for printing three-dimensional parts with crystallization kinetics control16 Jan 2025US 2025/0018641 A1Stratasys, Inc.
Most cited
By later US patents
- Three dimensional modelling apparatus343US 4,961,154 AScitex Corporation Ltd. · 1990
- Electronic display devices and methods195US 6,859,218 B1Hewlett-Packard Development Company, L. P. · 2005
- Layer manufacturing using electrostatic imaging and lamination190US 6,376,148 B1Nanotek Instruments, Inc. · 2002
- Automated manufacturing system using thin sections188US 5,088,047 A1992
- Memory element for information storage and retrieval system and associated process182US 4,800,526 AGAF Corporation · 1989