B29C 66/8511
Bag making machines
Official title: {Bag making machines}
B29C66/8511 (Bag making machines) appears on 307 US grants and 286 published applications in this corpus.
Search patents in B29C- Granted patents
- 307
- Published applications
- 286
- Assignees
- 163
- Inventors
- 541
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 7 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 9 | 6 |
| 2002 | 6 | 6 |
| 2003 | 10 | 3 |
| 2004 | 0 | 9 |
| 2005 | 3 | 5 |
| 2006 | 8 | 7 |
| 2007 | 2 | 9 |
| 2008 | 4 | 10 |
| 2009 | 2 | 10 |
| 2010 | 6 | 6 |
| 2011 | 7 | 10 |
| 2012 | 4 | 8 |
| 2013 | 2 | 7 |
| 2014 | 3 | 5 |
| 2015 | 6 | 13 |
| 2016 | 8 | 14 |
| 2017 | 4 | 8 |
| 2018 | 7 | 18 |
| 2019 | 17 | 17 |
| 2020 | 12 | 21 |
| 2021 | 14 | 24 |
| 2022 | 25 | 27 |
| 2023 | 19 | 18 |
| 2024 | 23 | 10 |
| 2025 | 10 | 10 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multi-film thermoplastic bags having visually-distinct contact areas creating text14 Apr 2026US 12,600,543 B2The Glad Products Company
- Multi-purpose sealing module for plastic film based bags and pouches making machine7 Apr 2026US 12,594,737 B2Mamata Machinery Private Limited
- Sealing and cutting device for forming filter-bags with infusion products3 Mar 2026US 12,565,009 B2I,M.A. Industria Macchine Automatiche S.p.A.
- Stitchless bulk bag with heat fused seams and method of production17 Feb 2026US 12,552,109 B2Ameriglobe, LLC
- Doser assemblies, apparatuses including a doser assembly, and/or methods of making the same3 Feb 2026US 12,539,996 B2Altria Client Services LLC
- Welding jaw and method for thermal welding13 Aug 2026US 2026/0233469 A1Georg Menshen GmbH & Co. KG
- Doser assemblies, apparatuses including a doser assembly, and/or methods of making the same21 May 2026US 2026/0138770 A1Altria Client Services LLC
- Coffee-preserving bag body and method for manufacturing same21 May 2026US 2026/0138789 A1W & Co.
- Thermal bonding method for plastic bag and method of manufacturing plastic bag23 Apr 2026US 2026/0109504 A1
- Web processing machines with ultrasonic sealers9 Apr 2026US 2026/0097571 A1CMD Corporation
Most cited
By later US patents
- Reclosable bags, apparatus and method193US 4,355,494 AMinigrip, Inc. · 1982
- Method of making protruding end stops for plastic reclosable fastener175US 5,088,971 AMobil Oil Corporation · 1992
- Method for making multiple plastic bags with reclosable fasteners thereon163US 3,948,705 A1976
- Apparatus for inflating and sealing air-filled packing cushions140US 6,659,150 B1Free-Flow Packaging International, Inc. · 2003
- Method of and apparatus for uninterruptedly assembling components for making bags117US 4,430,070 AMinigrip, Inc. · 1984