A47K 5/1204
By means of a rigid dispensing chamber and pistons
Official title: {by means of a rigid dispensing chamber and pistons}
A47K5/1204 (By means of a rigid dispensing chamber and pistons) appears on 489 US grants and 522 published applications in this corpus.
Search patents in A47K- Granted patents
- 489
- Published applications
- 522
- Assignees
- 182
- Inventors
- 665
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 12 |
| 2003 | 12 | 3 |
| 2004 | 3 | 4 |
| 2005 | 2 | 15 |
| 2006 | 4 | 7 |
| 2007 | 7 | 11 |
| 2008 | 3 | 10 |
| 2009 | 4 | 13 |
| 2010 | 8 | 14 |
| 2011 | 5 | 9 |
| 2012 | 13 | 11 |
| 2013 | 12 | 23 |
| 2014 | 20 | 31 |
| 2015 | 21 | 27 |
| 2016 | 15 | 23 |
| 2017 | 17 | 21 |
| 2018 | 27 | 34 |
| 2019 | 33 | 43 |
| 2020 | 43 | 40 |
| 2021 | 35 | 28 |
| 2022 | 26 | 39 |
| 2023 | 29 | 33 |
| 2024 | 28 | 26 |
| 2025 | 30 | 26 |
| 2026 | 13 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Container and pump assembly thereof6 Oct 2026US 12,751,584 B2Vmw International Pty Ltd
- Dispensing container connection interface of a mountable replenishable dispenser system4 Aug 2026US D1,138,672 S1Gilchrist & Soames, Inc. · Design
- Fluid dispenser with independently moveable lever and nozzle shield21 Jul 2026US 12,686,021 B2OP-Hygiene IP GmbH
- Adaptor assembly for a fluid dispensing system16 Jun 2026US 12,653,350 B2Essity Hygiene and Health Aktiebolag
- Fluid storage reservoir16 Jun 2026US RE50,918 E1OP-Hygiene IP GmbH
- Dispenser system17 Sep 2026US 2026/0272235 A1Deb IP Limited
- Lengthened all-plastic self-locking pump17 Sep 2026US 2026/0273560 A1Majesty Holdings Co., Ltd.
- Soap dispenser nozzle valve and reservoir assembly10 Sep 2026US 2026/0262886 A1Kohler Co.
- Improved table top dispenser20 Aug 2026US 2026/0241401 A1GOJO Industries, Inc.
- TidySqueeze2120 Aug 2026US 2026/0242094 A1
Most cited
By later US patents
- Liquid soap dispenser for simplified replacement of soap reservoir122US 5,431,309 AHygiene-Technik Inc. · 1995
- Liquid dispenser118US 4,938,384 ASloan Valve Company · 1990
- Disposable plastic liquid pump118US 5,165,577 A1992
- Compact fluid pump110US 6,216,916 B1Joseph S. Kanfer · 2001
- Disposable plastic liquid pump101US 5,282,552 AHygiene-Technik Inc. · 1994