B41F 31/04
With duct-blades or like metering devices
Official title: with duct-blades or like metering devices
B41F31/04 (With duct-blades or like metering devices) appears on 363 US grants and 174 published applications in this corpus.
Search patents in B41F- Granted patents
- 363
- Published applications
- 174
- Assignees
- 131
- Inventors
- 520
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 9 | 0 |
| 1978 | 7 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 13 | 0 |
| 1983 | 22 | 0 |
| 1984 | 16 | 0 |
| 1985 | 15 | 0 |
| 1986 | 10 | 0 |
| 1987 | 13 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 13 | 0 |
| 1992 | 13 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 10 | 0 |
| 1999 | 9 | 0 |
| 2000 | 9 | 0 |
| 2001 | 3 | 5 |
| 2002 | 14 | 14 |
| 2003 | 15 | 6 |
| 2004 | 9 | 8 |
| 2005 | 7 | 4 |
| 2006 | 5 | 5 |
| 2007 | 2 | 9 |
| 2008 | 3 | 12 |
| 2009 | 4 | 9 |
| 2010 | 2 | 5 |
| 2011 | 6 | 5 |
| 2012 | 6 | 5 |
| 2013 | 3 | 14 |
| 2014 | 8 | 7 |
| 2015 | 9 | 7 |
| 2016 | 9 | 7 |
| 2017 | 9 | 10 |
| 2018 | 4 | 10 |
| 2019 | 4 | 4 |
| 2020 | 3 | 7 |
| 2021 | 4 | 6 |
| 2022 | 7 | 4 |
| 2023 | 7 | 4 |
| 2024 | 4 | 4 |
| 2025 | 3 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus for manufacturing LED reflective sheet28 Apr 2026US 12,611,856 B2Sanheung Ez Inc.
- Ink tray insert22 Jul 2025US 12,365,174 B2Eastman Kodak Company
- Device for applying a fluid to a roller8 Jul 2025US 12,350,924 B2Macarbox, S.L.U.
- Device, method, and assembly for loading nozzles with fluid29 Apr 2025US 12,285,936 B2Archipelago Technology Group Ltd.
- Converting machine with height adjustment17 Sep 2024US 12,090,748 B2Bobst Lyon
- Anilox Roller, Printing Unit with Anilox Roller and Method for Producing an Anilox Roller8 Jan 2026US 2026/0008265 A1
- Apparatus for manufacturing led reflective sheet31 Jul 2025US 2025/0242581 A1Sanheung Ez Inc.
- Ink tray insert13 Mar 2025US 2025/0083434 A1Eastman Kodak Company
- Method for Applying an Image Built Up of Multiple Ink Layers on a Face of a Container, Ink Set for Said Method and Flexographic Transfer Printing System for Said Method28 Nov 2024US 2024/0391233 A1Van Dam International Holding B.V.
- An ink reservoir and doctor blade assembly10 Oct 2024US 2024/0336059 A1Primeblade Sweden AB
Most cited
By later US patents
- Printing and die-cutting apparatus77US 4,236,955 A1980
- Image scan and ink control system65US 3,958,509 AHarris Corporation · 1976
- Inking control apparatus for printing machines52US 4,329,923 AToshiba Kikai Kabushiki Kaisha · 1982
- Ink key control in a printing press including lateral ink spread, ink saturation, and back-flow compensation36US 5,967,049 AQuad/Tech, Inc. · 1999
- Dual purpose display for printing presses34US 3,930,447 AHarris Corporation · 1976