B65D 81/32
Containers, packaging elements, or packages, for contents presenting particular transport or storage
Official title: for packaging two or more different materials which must be maintained separate prior to use in admixture
B65D81/32 (Containers, packaging elements, or packages, for contents presenting particular transport or storage) appears on 2,535 US grants and 2,763 published applications in this corpus.
Search patents in B65D- Granted patents
- 2,535
- Published applications
- 2,763
- Assignees
- 1,262
- Inventors
- 5,046
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 19 | 0 |
| 1978 | 20 | 0 |
| 1979 | 7 | 0 |
| 1980 | 18 | 0 |
| 1981 | 11 | 0 |
| 1982 | 14 | 0 |
| 1983 | 14 | 0 |
| 1984 | 12 | 0 |
| 1985 | 20 | 0 |
| 1986 | 13 | 0 |
| 1987 | 24 | 0 |
| 1988 | 22 | 0 |
| 1989 | 36 | 0 |
| 1990 | 38 | 0 |
| 1991 | 38 | 0 |
| 1992 | 34 | 0 |
| 1993 | 37 | 0 |
| 1994 | 49 | 0 |
| 1995 | 42 | 0 |
| 1996 | 36 | 0 |
| 1997 | 32 | 0 |
| 1998 | 47 | 0 |
| 1999 | 90 | 0 |
| 2000 | 63 | 0 |
| 2001 | 61 | 18 |
| 2002 | 52 | 80 |
| 2003 | 60 | 81 |
| 2004 | 45 | 91 |
| 2005 | 43 | 88 |
| 2006 | 34 | 93 |
| 2007 | 34 | 124 |
| 2008 | 26 | 105 |
| 2009 | 42 | 104 |
| 2010 | 47 | 111 |
| 2011 | 62 | 111 |
| 2012 | 58 | 74 |
| 2013 | 66 | 118 |
| 2014 | 85 | 139 |
| 2015 | 84 | 135 |
| 2016 | 84 | 143 |
| 2017 | 99 | 142 |
| 2018 | 105 | 173 |
| 2019 | 120 | 137 |
| 2020 | 113 | 161 |
| 2021 | 115 | 143 |
| 2022 | 94 | 120 |
| 2023 | 82 | 81 |
| 2024 | 91 | 81 |
| 2025 | 60 | 70 |
| 2026 | 27 | 40 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B65D 81/3205Separate rigid or semi-rigid containers joined to each other at their external591
- B65D 81/3261Flexible containers having several compartments558
- B65D 81/3216Rigid containers disposed one within the other517
- B65D 81/325Containers having parallel or coaxial compartments, provided with a piston or a314
- B65D 81/3283Cylindrical or polygonal containers206
- B65D 81/3233Flexible containers disposed within rigid containers104
- B65D 81/3294Thermoformed trays or the like with a plurality of recesses for different89
- B65D 81/3255Containers provided with a piston or a movable bottom, and permitting admixture85
All 9 subgroupsShow fewer
Recent patents
- Food container6 Oct 2026US 12,752,956 B2Jia Wei Lifestyle, Inc.
- Child-resistant container29 Sep 2026US 12,747,074 B2Altria Client Services LLC
- Tray with lid15 Sep 2026US 12,735,230 B2BLB IP Pty Ltd
- Capsule for containing and dispensing for flasks1 Sep 2026US 12,722,865 B2Epoca S.P.A.
- Packaged dough product and method of packaging25 Aug 2026US 12,715,655 B2General Mills, Inc.
- Systems and techniques for enhancing packaged beverages8 Oct 2026US 2026/0307882 A1Beverage Booster Inc.
- Improved hop flavour in canned beer1 Oct 2026US 2026/0296760 A1Heineken Supply Chain B. V.
- Retrofitted bottle assembly1 Oct 2026US 2026/0296761 A1
- Dual compartment wipe dispenser1 Oct 2026US 2026/0296762 A1
- Multi-compartment pouch apparatus and methods of manufacture24 Sep 2026US 2026/0285574 A1ALUBaby Inc.
Most cited
By later US patents
- Static mixing device351US 4,538,920 AMinnesota Mining and Manufacturing Company · 1985
- Dental preparation, article and method for storage and delivery thereof280US 4,687,663 A1987
- Forming in situ a composition consisting of two separately packaged constituents and dispensing assembly for carrying out this process254US 4,823,985 AL'oreal · 1989
- Packaging and dispensing kit252US 4,040,420 AGeneral Dynamics Corporation · 1977
- Systems for the intrapulmonary delivery of aerosolized aqueous formulations252US 5,544,646 AAradigm Corporation · 1996