B41F 21/106
For reversing sheets
Official title: {for reversing sheets, e.g. for perfecting machine}
B41F21/106 (For reversing sheets) appears on 162 US grants and 61 published applications in this corpus.
Search patents in B41F- Granted patents
- 162
- Published applications
- 61
- Assignees
- 30
- Inventors
- 167
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 6 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 8 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 11 |
| 2003 | 4 | 8 |
| 2004 | 13 | 5 |
| 2005 | 7 | 6 |
| 2006 | 4 | 3 |
| 2007 | 4 | 3 |
| 2008 | 3 | 9 |
| 2009 | 0 | 1 |
| 2010 | 2 | 0 |
| 2011 | 2 | 0 |
| 2012 | 3 | 1 |
| 2013 | 0 | 3 |
| 2014 | 2 | 1 |
| 2015 | 1 | 1 |
| 2016 | 5 | 1 |
| 2017 | 0 | 0 |
| 2018 | 2 | 2 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Converting machine with inversion transfer module1 Sep 2026US 12,722,924 B2Bobst Lyon
- Inversion transfer module for a converting machine28 Apr 2026US 12,612,273 B2Bobst Lyon
- Sheet-fed printing unit configured as a screen printing unit12 Mar 2024US 11,926,142 B2Koenig & Bauer Aktiengesellschaft
- Sheet-processing machine comprising a turning device, method for conveying sheets, and use of sheet guide elements containing deionization devices15 Nov 2022US 11,498,790 B2Koenig & Bauer Aktiengesellschaft
- Sheet-fed printing press5 Jan 2021US 10,882,307 B2Koenig & Bauer Aktiengesellschaft
- Converting machine with inversion transfer module23 Jan 2025US 2025/0026123 A1Bobst Lyon
- Inversion transfer module for a converting machine28 Dec 2023US 2023/0416027 A1Bobst Lyon
- Sheet-fed printing unit configured as a screen printing unit14 Sep 2023US 2023/0286259 A1Koenig & Bauer Aktiengesellschaft
- Sheet-processing machine comprising a turning device, method for conveying sheets, and use of sheet guide elements containing deionization devices30 Jun 2022US 2022/0204295 A1Koenig & Bauer Aktiengesellschaft
- Sheet-fed printing press16 Jul 2020US 2020/0223218 A1Koenig & Bauer Aktiengesellschaft
Most cited
By later US patents
- Sheet-fed rotary printing machine with printing units arranged in tandem55US 4,856,426 AHeidelberger Druckmaschinen AG · 1989
- Sheet transferring apparatus for printing machine50US 5,406,884 ASakurai Graphic Systems Corporation · 1995
- Printing machine transfer drum adjustable to variable sheet lengths47US 4,204,471 AHeidelberger Druckmaschinen AG · 1980
- Transfer drum in sheet-fed rotary printing presses45US 4,024,814 AHeidelberger Druckmaschinen AG · 1977
- Sheet sensing device in a rotary printing press44US 4,127,265 AHeidelberger Druckmaschinen AG · 1978