G03G 21/02
Counting the number of copies
Official title: Counting the number of copies; Billing
G03G21/02 (Counting the number of copies) appears on 304 US grants and 290 published applications in this corpus.
Search patents in G03G- Granted patents
- 304
- Published applications
- 290
- Assignees
- 71
- Inventors
- 637
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 3 |
| 2002 | 7 | 8 |
| 2003 | 10 | 9 |
| 2004 | 3 | 6 |
| 2005 | 5 | 17 |
| 2006 | 6 | 13 |
| 2007 | 4 | 29 |
| 2008 | 8 | 35 |
| 2009 | 10 | 32 |
| 2010 | 19 | 23 |
| 2011 | 23 | 21 |
| 2012 | 30 | 13 |
| 2013 | 22 | 6 |
| 2014 | 8 | 7 |
| 2015 | 15 | 8 |
| 2016 | 6 | 3 |
| 2017 | 3 | 5 |
| 2018 | 4 | 7 |
| 2019 | 9 | 7 |
| 2020 | 6 | 5 |
| 2021 | 2 | 0 |
| 2022 | 1 | 4 |
| 2023 | 4 | 2 |
| 2024 | 5 | 10 |
| 2025 | 5 | 10 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image forming apparatus and image forming method15 Sep 2026US 12,736,906 B2KYOCERA Document Solutions Inc.
- Development device and image forming device that prevents toner leakage14 Jul 2026US 12,681,409 B2Sharp Kabushiki Kaisha
- Image forming system14 Jul 2026US 12,681,420 B2Konica Minolta, Inc.
- Image forming apparatus, control method for the same, and storage medium14 Jul 2026US 12,681,421 B2Canon Kabushiki Kaisha
- Image processing apparatus capable of performing printing with decoloring toner, method of controlling image processing apparatus, and storage medium13 Jan 2026US 12,523,957 B2Canon Kabushiki Kaisha
- Image forming apparatus, control method for the same, and storage medium8 Oct 2026US 2026/0310127 A1Canon Kabushiki Kaisha
- Image forming apparatus20 Aug 2026US 2026/0244151 A1Etria Co., Ltd.
- Image forming apparatus18 Jun 2026US 2026/0169400 A1Etria Co., Ltd.
- Static elimination apparatus and image forming system18 Jun 2026US 2026/0169420 A1Canon Kabushiki Kaisha
- Image forming apparatus12 Mar 2026US 2026/0072384 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Electronic copyright royalty accounting system using glyphs463US 5,444,779 AXerox Corporation · 1995
- Monitor/warranty system for electrostatographic reproducing machines using replaceable cartridges419US 4,961,088 AXerox Corporation · 1990
- Photocopy monitoring system181US 5,077,582 AMonitel Products Corp. · 1991
- Photocopy monitoring system and method for monitoring copiers104US 5,184,179 AMonitel Products Corp. · 1993
- Method of estimating cost of printing materials used to print a job on a printing apparatus103US 5,383,129 AXerox Corporation · 1995