A44B 19/16
Interlocking member having uniform section throughout the length of the stringer
Official title: Interlocking member having uniform section throughout the length of the stringer {(for sacks or bags B65D33/2508)}
A44B19/16 (Interlocking member having uniform section throughout the length of the stringer) appears on 333 US grants and 180 published applications in this corpus.
Search patents in A44B- Granted patents
- 333
- Published applications
- 180
- Assignees
- 94
- Inventors
- 331
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 8 | 0 |
| 1988 | 9 | 0 |
| 1989 | 10 | 0 |
| 1990 | 15 | 0 |
| 1991 | 11 | 0 |
| 1992 | 10 | 0 |
| 1993 | 10 | 0 |
| 1994 | 7 | 0 |
| 1995 | 12 | 0 |
| 1996 | 8 | 0 |
| 1997 | 13 | 0 |
| 1998 | 8 | 0 |
| 1999 | 13 | 0 |
| 2000 | 12 | 0 |
| 2001 | 11 | 2 |
| 2002 | 6 | 14 |
| 2003 | 17 | 15 |
| 2004 | 12 | 15 |
| 2005 | 4 | 7 |
| 2006 | 6 | 18 |
| 2007 | 9 | 13 |
| 2008 | 5 | 6 |
| 2009 | 13 | 6 |
| 2010 | 6 | 2 |
| 2011 | 3 | 1 |
| 2012 | 4 | 5 |
| 2013 | 3 | 3 |
| 2014 | 3 | 6 |
| 2015 | 5 | 6 |
| 2016 | 5 | 7 |
| 2017 | 9 | 3 |
| 2018 | 3 | 7 |
| 2019 | 4 | 9 |
| 2020 | 7 | 3 |
| 2021 | 4 | 5 |
| 2022 | 3 | 4 |
| 2023 | 3 | 8 |
| 2024 | 4 | 5 |
| 2025 | 5 | 9 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fitting tool and fitting-tool-equipped bag body5 May 2026US 12,617,586 B2C. I. TAKIRON Corporation
- Zipper strap structure, packaging bag comprising zipper strap structure, and manufacturing method for zipper strap structure31 Mar 2026US 12,588,739 B2Zippian Co., Ltd.
- Zipper strap structure, packaging bag comprising zipper strap structure, and manufacturing method for zipper strap structure7 Oct 2025US 12,433,374 B2Zippian Co., Ltd.
- Zipper assemblies having post-consumer recyclate material26 Aug 2025US 12,396,525 B2Illinois Tool Works Inc.
- Tape, zipper tape, and container with tape and method for manufacture therefor22 Apr 2025US 12,279,677 B2Idemitsu Unitech Co., Ltd.
- Zipper for reclosable flexible package28 May 2026US 2026/0145846 A1Illinois Tool Works Inc.
- Bag assembly having a front panel zipper assembly and tear strip27 Nov 2025US 2025/0359636 A1Illinois Tool Works Inc.
- Zipper assemblies having non-common material13 Nov 2025US 2025/0344814 A1Illinois Tool Works Inc.
- Zipper assemblies having non-common material13 Nov 2025US 2025/0344815 A1Illinois Tool Works Inc.
- Pouch14 Aug 2025US 2025/0256891 A1Oak International, Inc.
Most cited
By later US patents
- Rolling action zipper profile and slipper therefor205US 5,007,143 AMobil Oil Corporation · 1991
- Protruding end stops for plastic reclosable fastener195US 5,131,121 AMobil Oil Corporation · 1992
- End clamp stops for plastic reclosable fastener192US 5,161,286 AMobil Oil Corporation · 1992
- Integrated end stops for zipper slider192US 5,442,837 AMobil Oil Corporation · 1995
- Method of making protruding end stops for plastic reclosable fastener175US 5,088,971 AMobil Oil Corporation · 1992