B41F 31/26
Construction of inking rollers
Official title: Construction of inking rollers (inking-rollers serving also to apply ink repellants in rotary lithographic machines B41F7/36)
B41F31/26 (Construction of inking rollers) appears on 161 US grants and 133 published applications in this corpus.
Search patents in B41F- Granted patents
- 161
- Published applications
- 133
- Assignees
- 93
- Inventors
- 319
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 7 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 4 |
| 2002 | 4 | 3 |
| 2003 | 5 | 2 |
| 2004 | 5 | 6 |
| 2005 | 4 | 6 |
| 2006 | 2 | 3 |
| 2007 | 2 | 6 |
| 2008 | 2 | 8 |
| 2009 | 1 | 9 |
| 2010 | 2 | 2 |
| 2011 | 4 | 5 |
| 2012 | 2 | 6 |
| 2013 | 4 | 3 |
| 2014 | 5 | 2 |
| 2015 | 3 | 10 |
| 2016 | 7 | 6 |
| 2017 | 8 | 6 |
| 2018 | 7 | 7 |
| 2019 | 5 | 1 |
| 2020 | 2 | 12 |
| 2021 | 5 | 6 |
| 2022 | 6 | 7 |
| 2023 | 2 | 2 |
| 2024 | 2 | 4 |
| 2025 | 4 | 4 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Arrangement for a printing machine and method for production7 Oct 2025US 12,434,468 B2INOMETA GmbH
- Ink tray insert22 Jul 2025US 12,365,174 B2Eastman Kodak Company
- Primer apparatus1 Jul 2025US 12,344,493 B2Hewlett-Packard Development Company, L. P.
- Inking system with segmented fountain roller11 Feb 2025US 12,220,904 B1Eastman Kodak Company
- Method for automatically exchanging a sleeve of a printing tool22 Oct 2024US 12,122,145 B2Bobst Bielefeld GmbH
- Printing unit with positioning system23 Jul 2026US 2026/0208477 A1Bobst Lyon
- Ink chamber frame structure and ink chamber device with ink return function5 Mar 2026US 2026/0061741 A1Sunrise Pacific Co., Ltd.
- Anilox Roller, Printing Unit with Anilox Roller and Method for Producing an Anilox Roller8 Jan 2026US 2026/0008265 A1
- Primer apparatus25 Sep 2025US 2025/0296797 A1Hewlett-Packard Development Company, L. P.
- Method for determining the location-dependent structure depth of a flexographic printing plate or scanning surface26 Jun 2025US 2025/0206011 A1Heidelberger Druckmaschinen AG
Most cited
By later US patents
- Method of making an ink roller42US 4,483,053 AMonarch Marking Systems, Inc. · 1984
- Composite machine roll and method of manufacture41US 5,324,248 AComposite Development Corporation · 1994
- Apparatus for applying printed matter to webs of wrapping material for smokers' products40US 6,647,878 B2Hauni Mashinenbau AG · 2003
- High volume, textured liquid transfer surface36US 5,908,505 AQuestech Limited · 1999
- Transfer roll with ceramic-fluorocarbon coating containing cylindrical ink holes with round, beveled entrances32US 4,793,041 A1988