B31F 1/2863
Corrugating cylinders
Official title: {Corrugating cylinders; Supporting or positioning means therefor; Drives therefor}
B31F1/2863 (Corrugating cylinders) appears on 85 US grants and 55 published applications in this corpus.
Search patents in B31F- Granted patents
- 85
- Published applications
- 55
- Assignees
- 44
- Inventors
- 116
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 1 |
| 2003 | 3 | 4 |
| 2004 | 2 | 3 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 2 |
| 2009 | 2 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 2 |
| 2013 | 3 | 2 |
| 2014 | 2 | 1 |
| 2015 | 2 | 5 |
| 2016 | 0 | 0 |
| 2017 | 0 | 3 |
| 2018 | 1 | 1 |
| 2019 | 2 | 4 |
| 2020 | 5 | 3 |
| 2021 | 1 | 2 |
| 2022 | 3 | 4 |
| 2023 | 1 | 3 |
| 2024 | 5 | 6 |
| 2025 | 4 | 3 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Device and method for replacing stage roll unit10 Mar 2026US 12,570,069 B2Mitsubishi Heavy Industriesmachinery Systems, Ltd
- Method and apparatus for manufacturing corrugated paperboard17 Feb 2026US 12,552,128 B2Interpac Ltd
- Conformable, recyclable shipping container, machine and method6 Jan 2026US 12,515,434 B2PAC Worldwide Corporation
- Assembly for producing a corrugated cardboard web laminated on one side6 Jan 2026US 12,515,447 B2BHS Corrugated Maschinen-und Anlagenbau GmbH
- Corrugating roller4 Nov 2025US 12,459,226 B2PAC Worldwide Corporation
- Corrugating roller12 Mar 2026US 2026/0070299 A1PAC Worldwide Corporation
- Embossments having generally homogenous layers1 May 2025US 2025/0135743 A1Pregis LLC
- Heat-activated multilayer embossment1 May 2025US 2025/0135759 A1Pregis LLC
- Multilayer embossments with strain-relief features1 May 2025US 2025/0135766 A1Pregis LLC
- Corrugating roller manufacturing method, corrugating roller manufacturing apparatus, and corrugating roller28 Nov 2024US 2024/0391006 A1
Most cited
By later US patents
- Method of fluting a corrugating medium40US 5,419,796 A1995
- High flute density, printable, corrugated paperboard29US 6,139,938 AInnovative Packaging Corp. · 2000
- Corrugating machine and corrugating roll design for the same29US 6,800,052 B1Kabushiki Kaisha Isowa · 2004
- Single facer corrugating machine26US 4,531,996 ACorrugating Roll Corporation · 1985
- Single-facer20US 5,389,183 AMitsubishi Jukogyo Kabushiki Kaisha · 1995