B41F 31/027
Ink rail devices for inking ink rollers
Official title: {Ink rail devices for inking ink rollers}
B41F31/027 (Ink rail devices for inking ink rollers) appears on 265 US grants and 165 published applications in this corpus.
Search patents in B41F- Granted patents
- 265
- Published applications
- 165
- Assignees
- 120
- Inventors
- 379
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 13 | 0 |
| 1992 | 13 | 0 |
| 1993 | 13 | 0 |
| 1994 | 13 | 0 |
| 1995 | 8 | 0 |
| 1996 | 5 | 0 |
| 1997 | 9 | 0 |
| 1998 | 5 | 0 |
| 1999 | 8 | 0 |
| 2000 | 15 | 0 |
| 2001 | 9 | 2 |
| 2002 | 6 | 7 |
| 2003 | 14 | 10 |
| 2004 | 7 | 5 |
| 2005 | 2 | 8 |
| 2006 | 3 | 11 |
| 2007 | 9 | 11 |
| 2008 | 4 | 4 |
| 2009 | 4 | 11 |
| 2010 | 4 | 2 |
| 2011 | 5 | 6 |
| 2012 | 2 | 12 |
| 2013 | 3 | 3 |
| 2014 | 10 | 10 |
| 2015 | 7 | 12 |
| 2016 | 12 | 6 |
| 2017 | 9 | 5 |
| 2018 | 5 | 8 |
| 2019 | 3 | 6 |
| 2020 | 4 | 5 |
| 2021 | 3 | 5 |
| 2022 | 4 | 5 |
| 2023 | 7 | 5 |
| 2024 | 7 | 4 |
| 2025 | 2 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Doctor23 Sep 2025US 12,420,542 B2Tkm Meyer GmbH
- Device for applying a fluid to a roller8 Jul 2025US 12,350,924 B2Macarbox, S.L.U.
- Method for automatically exchanging a sleeve of a printing tool22 Oct 2024US 12,122,145 B2Bobst Bielefeld GmbH
- Ink supply system24 Sep 2024US 12,097,694 B2Bobst Bielefeld GmbH
- System with sealing chamber11 Jun 2024US 12,005,471 B2Kompac Technologies, LLC
- Chambered doctor-blade seal assembly, doctor-blade chamber seal, and method for same3 Sep 2026US 2026/0257468 A1Agergaard Graphic Supplies GmbH
- Anilox Roller, Printing Unit with Anilox Roller and Method for Producing an Anilox Roller8 Jan 2026US 2026/0008265 A1
- An ink reservoir and doctor blade assembly10 Oct 2024US 2024/0336059 A1Primeblade Sweden AB
- Sealing system11 Jul 2024US 2024/0227383 A1Bobst Bielefeld GmbH
- Doctor11 Jan 2024US 2024/0009989 A1Tkm Meyer GmbH
Most cited
By later US patents
- Reverse angle doctor blade assembly with stationary end seal46US 4,590,855 APrintco Industries, Ltd. · 1986
- Doctor blade assembly with rotary end seals and interchangeable heads44US 4,821,672 A1989
- Automatic coating circulation and wash-up system for printing presses36US 5,367,982 A1994
- Doctor blade head assembly and printing apparatus therewith34US 5,103,732 AWard Holding Company, Inc. · 1992
- Letterpress printing method and applicator device for its implementation34US 5,671,678 A1997