A45F 3/20
Of flexible material
Official title: of flexible material; Collapsible or stackable cups
A45F3/20 (Of flexible material) appears on 318 US grants and 461 published applications in this corpus.
Search patents in A45F- Granted patents
- 318
- Published applications
- 461
- Assignees
- 166
- Inventors
- 667
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 9 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 2 | 8 |
| 2003 | 7 | 14 |
| 2004 | 10 | 28 |
| 2005 | 9 | 27 |
| 2006 | 12 | 18 |
| 2007 | 4 | 18 |
| 2008 | 3 | 17 |
| 2009 | 10 | 9 |
| 2010 | 8 | 16 |
| 2011 | 8 | 15 |
| 2012 | 12 | 16 |
| 2013 | 13 | 19 |
| 2014 | 12 | 19 |
| 2015 | 16 | 20 |
| 2016 | 15 | 22 |
| 2017 | 11 | 32 |
| 2018 | 14 | 24 |
| 2019 | 19 | 25 |
| 2020 | 19 | 22 |
| 2021 | 18 | 13 |
| 2022 | 14 | 30 |
| 2023 | 13 | 19 |
| 2024 | 11 | 16 |
| 2025 | 10 | 9 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Nested drinking vessels4 Aug 2026US 12,696,969 B1Buddy Cup LLC
- Collapsible water bucket with screw-on lid5 May 2026US 12,617,589 B2Colapz Ltd
- Liquid reservoir system16 Dec 2025US 12,495,886 B1
- Hydration bladder drying apparatus and method of manufacture25 Nov 2025US 12,479,189 B2Fossil Outdoor Inc.
- Collapsible container with straw23 Sep 2025US 12,419,407 B2
- Plastic-Free Liquid Container and Hydration System with Multi-Functional Strap, Metal Cap, and Converter30 Jul 2026US 2026/0215572 A1
- Water bottle with stiff outer layer and directly contacted inner bladder25 Jun 2026US 2026/0174217 A1Phenom One Inc.
- Personal hydration device and pack carrying the personal hydration device11 Jun 2026US 2026/0157507 A1Hayco Manufacturing Limited
- Liquid Carrying Container Particularly Suited For Use By Military Personel5 Mar 2026US 2026/0062191 A1Tactical H20 Company LLC
- Collapsible beverage container13 Nov 2025US 2025/0346400 A1
Most cited
By later US patents
- Fluid pump for a flexible, variable geometry reservoir188US 5,342,313 AInfusion Technologies Corporation · 1994
- Drink bottles with bite-actuated mouthpieces181US 7,533,783 B2CamelBak Products, LLC · 2009
- Squeeze bottle with insulating jacket171US 5,529,217 A1996
- Portable liquid container157US 5,398,848 A1995
- Resilient valve and dispensing system for bicyclists141US 5,085,349 A1992