B31B 70/008
Stiffening or reinforcing
Official title: {Stiffening or reinforcing (B31B70/876 takes precedence)}
B31B70/008 (Stiffening or reinforcing) appears on 133 US grants and 172 published applications in this corpus.
Search patents in B31B- Granted patents
- 133
- Published applications
- 172
- Assignees
- 84
- Inventors
- 239
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 4 |
| 2003 | 1 | 3 |
| 2004 | 4 | 5 |
| 2005 | 0 | 6 |
| 2006 | 1 | 2 |
| 2007 | 2 | 6 |
| 2008 | 4 | 6 |
| 2009 | 3 | 3 |
| 2010 | 5 | 13 |
| 2011 | 3 | 8 |
| 2012 | 2 | 9 |
| 2013 | 4 | 4 |
| 2014 | 6 | 8 |
| 2015 | 3 | 11 |
| 2016 | 6 | 8 |
| 2017 | 9 | 5 |
| 2018 | 6 | 9 |
| 2019 | 3 | 6 |
| 2020 | 4 | 11 |
| 2021 | 9 | 4 |
| 2022 | 10 | 5 |
| 2023 | 5 | 12 |
| 2024 | 11 | 14 |
| 2025 | 8 | 7 |
| 2026 | 6 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and machine for manufacturing a flexible envelope-like bag, particularly with reinforcement29 Sep 2026US 12,747,068 B2Holweg Group
- Flexible bag having a convertible bottom, method and machine for manufacturing same25 Aug 2026US 12,715,657 B2Holweg Group
- Method of manufacturing contents-filled packaging container28 Jul 2026US 12,692,060 B2Hosokawa Yoko Co., Ltd.
- Polymeric bags and method to make same9 Jun 2026US 12,649,620 B2Poly-America, L. P.
- Vertical packaging machine and associated control method10 Feb 2026US 12,545,463 B2Ulma Packaging, S. Coop.
- Machine and method for forming bags of flexible material24 Sep 2026US 2026/0284999 A1Ilapak Italia S.P.A.
- Phased intermeshing rollers for creating patterns in trash bags22 Jan 2026US 2026/0021941 A1The Glad Products Company
- Phased intermeshing rollers for creating patterns in trash bags22 Jan 2026US 2026/0021942 A1The Glad Products Company
- Systems and methods for making envelopes and/or other protective products with expanded paper cushioning17 Jul 2025US 2025/0229504 A1HexcelPack, LLC
- Method for manufacturing rectangular-bottomed packaging bag, device for manufacturing rectangular-bottomed packaging bag, method for manufacturing packaging body, and device for manufacturing packaging body12 Jun 2025US 2025/0187288 A1Hosokawa Yoko Co., Ltd.
Most cited
By later US patents
- Self-supporting polymer bag and method of manufacture165US 5,158,371 A1992
- Method of producing an internally reinforced thermoplastic film and film and articles produced therefrom123US 4,592,938 AMobil Oil Corporation · 1986
- Thermal bag for foods and the like102US 9,834,366 B2IM-BALL-CENTER S.r.L. · 2017
- Tubular bagging machine with an asymmetrical forming shoulder and tubular bags with an edge-side longitudinal seam94US 5,862,652 ARovema Packaging Machines, L.P. · 1999
- Stand up bag87US 6,783,277 B2Scholle Corporation · 2004