B31F 1/2886
Additionally reinforcing
Official title: {Additionally reinforcing, e.g. by applying resin or wire}
B31F1/2886 (Additionally reinforcing) appears on 19 US grants and 19 published applications in this corpus.
Search patents in B31F- Granted patents
- 19
- Published applications
- 19
- Assignees
- 14
- Inventors
- 41
- Latest grant
- 13 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 3 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 2 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 1 | 2 |
| 2012 | 0 | 2 |
| 2013 | 2 | 2 |
| 2014 | 2 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Insulated panels13 May 2025US 12,297,032 B2Pratt Corrugated Holdings, Inc.
- Wet-strength corrugated fiberboard7 Apr 2015US 8,999,491 B2BASF SE
- Corrugated water resistant box12 Aug 2014US 8,802,205 B2Interstate Corrpack LLC
- Apparatus and method for producing waterproof structural corrugated paperboard21 Jan 2014US 8,631,848 B2
- Poultry box8 Oct 2013US 8,551,585 B2Interstate Corrpack LLC
- Insulated panels28 Aug 2025US 2025/0270022 A1Pratt Corrugated Holdings, Inc.
- Insulated panels18 Feb 2021US 2021/0047102 A1Pratt Corrugated Holdings, Inc.
- Cardboard with edge sealed with mixture of hot-melt adhesive and wax26 Jul 2018US 2018/0207895 A1
- Reinforcement to prevent tearing and provide structural support and moisture elimination in corrugated paper board18 Sep 2014US 2014/0261988 A1Adalis Corporation
- Corrugated water resistant box14 Nov 2013US 2013/0302546 A1Interstate Corrpack LLC
Most cited
By later US patents
- Web reinforced with string-type adhesive and method of manufacturing same22US 4,452,837 AH. B. Fuller Company · 1984
- Process of manufacturing of reinforced corrugated cardboard type packaging container19US 4,437,850 AKabushiki Kaisha Tomoku · 1984
- In-line process for the production of corrugated board13US 3,936,339 AInternational Paper Company · 1976
- Method and apparatus for preventing warp in corrugated cardboard13US 4,314,868 AMitsubishi Jukogyo Kabushiki Kaisha · 1982
- Method for producing a reinforced, double-faced corrugated board13US 4,339,292 AKyokuto Fatty-Acid Corporation · 1982