B31F 1/2881
For bringing a second facer sheet into contact with an already single
Official title: {for bringing a second facer sheet into contact with an already single faced corrugated web}
B31F1/2881 (For bringing a second facer sheet into contact with an already single) appears on 60 US grants and 27 published applications in this corpus.
Search patents in B31F- Granted patents
- 60
- Published applications
- 27
- Assignees
- 33
- Inventors
- 84
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 9 | 0 |
| 1999 | 8 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 6 |
| 2012 | 1 | 1 |
| 2013 | 3 | 2 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 2 | 2 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 4 |
| 2021 | 0 | 1 |
| 2022 | 3 | 2 |
| 2023 | 2 | 1 |
| 2024 | 2 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Arrangement for producing a corrugated board web laminated on both sides21 Oct 2025US 12,447,710 B2BHS Corrugated Maschinen-und Anlagenbau GmbH
- Systems and methods for forming corrugated boards with ultrasound2 Jul 2024US 12,023,891 B2Packsize LLC
- Method and device for controlling the traction of corrugated board in the double facer of a production line2 Jan 2024US 11,858,233 B2Fosber S.p.A.
- Systems and methods for forming corrugated boards with ultrasound15 Aug 2023US 11,724,476 B2Packsize LLC
- Corrugated cardboard sheet manufacturing system9 May 2023US 11,642,865 B2Mitsubishi Heavy Industries Machinery Systems, Ltd.
- In-line corrugated cardboard laminating plants19 Jun 2025US 2025/0196490 A1Fosber S.p.A.
- Arrangement for producing a corrugated board web laminated on both sides27 Jun 2024US 2024/0208175 A1BHS Corrugated Maschinen-und Anlagenbau GmbH
- Systems and methods for forming corrugated boards with ultrasound21 Sep 2023US 2023/0294376 A1Packsize LLC
- Method And Device For ControllingThe Traction Of Corrugated Board In The Double Facer Of A Production Line25 Aug 2022US 2022/0266566 A1Fosber S.p.A.
- Systems and methods for forming corrugated boards with ultrasound25 Aug 2022US 2022/0266567 A1Packsize LLC
Most cited
By later US patents
- Corrugating machine glue applicator33US 4,764,236 AWestvaco Corporation · 1988
- Corrugating machine with a flexible vessel pressure applying means28US 5,256,240 ASimon Container Machinery Limited · 1993
- Apparatus and method for enhancing heating uniformity for setting adhesive in corrugated paperboard manufacturing28US 5,456,783 AInterfic Developments, Inc. · 1995
- Adjustable ballast system for the holddown belt in a double facer22US 5,466,329 AMarquip, Inc. · 1995
- Web holdown and drive for corrugator double backer22US 5,561,918 AMarquip, Inc. · 1996