B31F 1/32
Corrugating already corrugated webs
B31F1/32 (Corrugating already corrugated webs) appears on 12 US grants and 11 published applications in this corpus.
Search patents in B31F- Granted patents
- 12
- Published applications
- 11
- Assignees
- 7
- Inventors
- 9
- Latest grant
- 1 Mar 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 2 | 3 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 2 | 2 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 2 | 2 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for producing corrugated board1 Mar 2022US 11,260,616 B2
- Apparatus for producing a corrugated product20 Apr 2021US 10,981,348 B2Intpro, LLC
- Apparatus for producing a corrugated product31 Mar 2020US 10,603,864 B2Intpro, LLC
- Method for producing corrugated board28 Jan 2020US 10,543,654 B2Hbk Family, LLC
- Paper-based elongate structures suitable for use as lumber substitutes25 Jun 2019US 10,328,655 B2Erdie End Caps, LLC
- Multilayer product of paper-like material, in particular of canneté or corrugated cardboard type11 Apr 2024US 2024/0116282 A1Grifal S.P.A.
- Apparatus for producing a corrugated product23 Apr 2020US 2020/0122426 A1Intpro, LLC
- Apparatus for producing corrugated board16 Apr 2020US 2020/0114613 A1Hbk Family, LLC
- Apparatus for producing a corrugated product17 Oct 2019US 2019/0315085 A1Intpro, LLC
- Paper-based elongate structures suitable for use as lumber substitutes23 Nov 2017US 2017/0335559 A1Erdie End Caps, LLC
Most cited
By later US patents
- Corrugated spacers for pleated air filter media35US 4,537,812 ACambridge Filter Corporation · 1985
- Apparatus for producing corrugated board6US 8,672,825 B2Hbk Family, LLC · 2014
- Machine for reprofiling corrugated materials2US 5,858,418 AOnduline · 1999
- Method for producing corrugated board1US 10,543,654 B2Hbk Family, LLC · 2020
- Method of fabricating bitumen impregnated ridge tiles, and machines for fabricating them1US 9,677,278 B2Onduline · 2017