F04B 41/06
Combinations of two or more pumps
F04B41/06 (Combinations of two or more pumps) appears on 458 US grants and 578 published applications in this corpus.
Search patents in F04B- Granted patents
- 458
- Published applications
- 578
- Assignees
- 336
- Inventors
- 1,159
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 1 |
| 2002 | 2 | 4 |
| 2003 | 9 | 7 |
| 2004 | 2 | 8 |
| 2005 | 3 | 12 |
| 2006 | 1 | 8 |
| 2007 | 5 | 9 |
| 2008 | 3 | 15 |
| 2009 | 6 | 15 |
| 2010 | 6 | 13 |
| 2011 | 12 | 15 |
| 2012 | 10 | 20 |
| 2013 | 14 | 20 |
| 2014 | 13 | 30 |
| 2015 | 15 | 25 |
| 2016 | 13 | 21 |
| 2017 | 18 | 24 |
| 2018 | 14 | 37 |
| 2019 | 26 | 36 |
| 2020 | 28 | 34 |
| 2021 | 30 | 40 |
| 2022 | 36 | 46 |
| 2023 | 28 | 47 |
| 2024 | 43 | 41 |
| 2025 | 39 | 29 |
| 2026 | 23 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas compression system and control method thereof25 Aug 2026US 12,716,410 B2Hitachi Industrial Equipment Systems Co., Ltd.
- Multi-pressure integrated air pump18 Aug 2026US 12,710,032 B2Intex Marketing Ltd.
- Throttle valve for coolant circulation system18 Aug 2026US 12,710,056 B2Ingersoll-Rand Industrial U.S., Inc.
- Method and system for efficient hydrogen compression11 Aug 2026US 12,704,116 B2Nuovo Pignone Tecnologie Srl
- Active balancing of multiple interleaved piezo pumps23 Jun 2026US 12,662,997 B2Safran Landing Systems UK LTD
- Monitoring system and monitoring method8 Oct 2026US 2026/0309148 A1Fuji Corporation
- Systems and methods for mobile compression8 Oct 2026US 2026/0309154 A1Artemis Production Solutions, Inc.
- Vacuum pump1 Oct 2026US 2026/0299394 A1Pfeiffer Vacuum GmbH
- Pump delivery tool and delivery method for vacuum pump using the same13 Aug 2026US 2026/0235119 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Compressor unit6 Aug 2026US 2026/0226891 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
Most cited
By later US patents
- Multiple compressor controller and method139US 4,502,842 AColt Industries Operating Corp. · 1985
- Fluid pump speed controller136US 6,045,331 A2000
- Compressor for high pressure polymerization128US 7,563,413 B2ExxonMobil Chemical Patents Inc. · 2009
- Method for controlling a compressed air installation comprising several compressors, control box applied thereby and compressed air installation applying this method93US 7,955,056 B2Atlas Copco Airpower, Naamloze Vennootschap · 2011
- Method and apparatus for sequencing multistage systems of known relative capacities88US 6,540,148 B1Johnson Controls Technology Company · 2003