B05B 11/1001
Piston pumps
Official title: {Piston pumps (B05B11/1087, B05B11/1088, B05B11/109 take precedence)}
B05B11/1001 (Piston pumps) appears on 2,456 US grants and 2,036 published applications in this corpus.
Search patents in B05B- Granted patents
- 2,456
- Published applications
- 2,036
- Assignees
- 778
- Inventors
- 2,641
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 19 | 0 |
| 1978 | 24 | 0 |
| 1979 | 22 | 0 |
| 1980 | 31 | 0 |
| 1981 | 26 | 0 |
| 1982 | 21 | 0 |
| 1983 | 11 | 0 |
| 1984 | 19 | 0 |
| 1985 | 16 | 0 |
| 1986 | 12 | 0 |
| 1987 | 15 | 0 |
| 1988 | 16 | 0 |
| 1989 | 29 | 0 |
| 1990 | 38 | 0 |
| 1991 | 29 | 0 |
| 1992 | 29 | 0 |
| 1993 | 43 | 0 |
| 1994 | 61 | 0 |
| 1995 | 51 | 0 |
| 1996 | 51 | 0 |
| 1997 | 61 | 0 |
| 1998 | 66 | 0 |
| 1999 | 75 | 0 |
| 2000 | 62 | 0 |
| 2001 | 58 | 16 |
| 2002 | 55 | 46 |
| 2003 | 39 | 42 |
| 2004 | 43 | 52 |
| 2005 | 30 | 71 |
| 2006 | 30 | 61 |
| 2007 | 27 | 74 |
| 2008 | 14 | 86 |
| 2009 | 30 | 70 |
| 2010 | 63 | 80 |
| 2011 | 65 | 70 |
| 2012 | 47 | 74 |
| 2013 | 64 | 86 |
| 2014 | 78 | 101 |
| 2015 | 76 | 105 |
| 2016 | 77 | 102 |
| 2017 | 92 | 113 |
| 2018 | 95 | 96 |
| 2019 | 125 | 115 |
| 2020 | 81 | 111 |
| 2021 | 109 | 92 |
| 2022 | 79 | 99 |
| 2023 | 72 | 85 |
| 2024 | 63 | 90 |
| 2025 | 60 | 60 |
| 2026 | 42 | 39 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B05B 11/1009Actuated by a lever715
- B05B 11/1023Having an outlet valve opened by deformation or displacement of the piston535
- B05B 11/1016The outlet valve having a valve seat located downstream a movable valve342
- B05B 11/1015Actuated without substantial movement of the nozzle in the direction of the265
- B05B 11/1004Comprising a movable cylinder and a stationary piston198
- B05B 11/1005With means for adjusting or modifying pump stroke154
- B05B 11/1002The direction of the pressure stroke being substantially perpendicular to the major64
- B05B 11/1021Having an outlet valve which is a gate valve51
Recent patents
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- Valve spring, pump, dispensing unit and dispenser8 Sep 2026US 12,728,434 B2Aptar Dortmund GmbH
- Pump assembly1 Sep 2026US 12,722,174 B2Yonwoo Co., Ltd.
- Actuating part for a storage subassembly of a fluid product dispenser, associated subassembly and dispenser8 Oct 2026US 2026/0307089 A1Albea Services
- Trigger pumps17 Sep 2026US 2026/0273559 A1Obrist Closures Switzerland GmbH
- Trigger sprayer venting systems and methods for using the same10 Sep 2026US 2026/0264098 A1Silgan Dispensing Systems Corporation
- Device and system for dispensing a liquid10 Sep 2026US 2026/0264099 A1Dispensing Technologies B.V.
- Pump top for liquid dispensers20 Aug 2026US 2026/0241399 A1World Club Supply Corp.
Most cited
By later US patents
- Atomising devices and methods210US 5,497,944 ADMW (Technology) Limited · 1996
- Foam dispenser161US 4,350,298 ACanyon Corporation · 1982
- Fluid dispenser having a housing and flexible inner bladder155US 6,761,286 B2Medical Instill Technologies, Inc. · 2004
- Providing aromas154US 5,591,409 A1997
- Device for dispensing and applying a product145US 6,309,124 B1L'oreal · 2001