F04D 29/126
Especially adapted for liquid pumps
Official title: {especially adapted for liquid pumps}
F04D29/126 (Especially adapted for liquid pumps) appears on 398 US grants and 273 published applications in this corpus.
Search patents in F04D- Granted patents
- 398
- Published applications
- 273
- Assignees
- 260
- Inventors
- 828
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 0 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 10 | 0 |
| 1987 | 5 | 0 |
| 1988 | 7 | 0 |
| 1989 | 9 | 0 |
| 1990 | 10 | 0 |
| 1991 | 6 | 0 |
| 1992 | 13 | 0 |
| 1993 | 8 | 0 |
| 1994 | 11 | 0 |
| 1995 | 5 | 0 |
| 1996 | 11 | 0 |
| 1997 | 8 | 0 |
| 1998 | 10 | 0 |
| 1999 | 3 | 0 |
| 2000 | 10 | 0 |
| 2001 | 10 | 0 |
| 2002 | 13 | 4 |
| 2003 | 3 | 5 |
| 2004 | 4 | 7 |
| 2005 | 6 | 9 |
| 2006 | 7 | 8 |
| 2007 | 4 | 4 |
| 2008 | 5 | 8 |
| 2009 | 2 | 2 |
| 2010 | 8 | 7 |
| 2011 | 1 | 6 |
| 2012 | 3 | 10 |
| 2013 | 9 | 14 |
| 2014 | 5 | 17 |
| 2015 | 6 | 9 |
| 2016 | 14 | 23 |
| 2017 | 17 | 21 |
| 2018 | 14 | 15 |
| 2019 | 19 | 22 |
| 2020 | 15 | 16 |
| 2021 | 22 | 16 |
| 2022 | 13 | 17 |
| 2023 | 18 | 9 |
| 2024 | 15 | 7 |
| 2025 | 6 | 7 |
| 2026 | 7 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Tandem seal pump8 Sep 2026US 12,729,692 B2Ceco Environmental IP Inc.
- Pump unit for a centrifugal pump and centrifugal pump25 Aug 2026US 12,716,422 B2Levitronix LLC
- Electric coolant pump with expansion compensating seal18 Aug 2026US 12,710,051 B2Multi Parts Supply USA, Inc.
- Pump unit, pump system, and pump system operation method30 Jun 2026US 12,669,128 B2Nikkiso Co., Ltd.
- Self-priming centrifugal pump assembly with multifunctional sealing system16 Jun 2026US 12,655,846 B2
- Device for Forming a Sliding Bearing or a Slip-Ring Seal Having Integrated Temperature Measurement24 Sep 2026US 2026/0287012 A1KSB SE & Co. KGaA
- Sealing arrangement, pump and method13 Aug 2026US 2026/0235137 A1Aalto University Foundation sr
- Shaft sealing device13 Aug 2026US 2026/0235208 A1Eagle Industry Co., Ltd.
- Pump system30 Jul 2026US 2026/0218719 A1Pentair Flow Technologies, LLC
- Sealing assembly and vertical pump/mixer comprising the sealing assembly18 Jun 2026US 2026/0166503 A1Sulzer Management AG
Most cited
By later US patents
- Centrifugal blood pump with impeller212US 4,589,822 AMICI Limited Partnership IV · 1986
- Method and apparatus for sterilization of a centrifugal pump126US 4,643,641 AMICI Limited Partnership IV · 1987
- High speed whirlpool pump121US 5,156,535 AITT Corporation · 1992
- Couplings for joining shafts120US 5,655,849 AHenry Filters, Inc. · 1997
- Environmentally safe pump including seal93US 5,499,902 AEnvironamics Corporation · 1996