F04B 9/1207
Using a source of partial vacuum or sub-atmospheric pressure
Official title: {using a source of partial vacuum or sub-atmospheric pressure}
F04B9/1207 (Using a source of partial vacuum or sub-atmospheric pressure) appears on 29 US grants and 29 published applications in this corpus.
Search patents in F04B- Granted patents
- 29
- Published applications
- 29
- Assignees
- 26
- Inventors
- 74
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 3 |
| 2016 | 1 | 2 |
| 2017 | 1 | 1 |
| 2018 | 2 | 2 |
| 2019 | 1 | 3 |
| 2020 | 1 | 2 |
| 2021 | 1 | 4 |
| 2022 | 3 | 0 |
| 2023 | 2 | 1 |
| 2024 | 1 | 1 |
| 2025 | 0 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pump arrangement, configured to be used with a double breast pump device28 Jul 2026US 12,691,205 B2Koninklijke Philips N. V.
- Pump unit, storage device equipped therewith, and method for operating the storage device10 Mar 2026US 12,571,384 B2Scheugenpflug GmbH
- Method and apparatus for testing for and removing trapped air from submersible well pump assembly23 Jan 2024US 11,879,454 B2Baker Hughes Oilfield Operations LLC
- Vacuum pump arrangement for a milking plant19 Sep 2023US 11,758,877 B2DeLaval Holding AB
- Fluid flow control and delivery via multiple fluid pumps3 Jan 2023US 11,542,936 B2Fresenius Kabi USA, LLC
- Expandable device for a body cavity27 Aug 2026US 2026/0249060 A1IP Holding Company
- Pump with evacuated driver for auto-injection7 Aug 2025US 2025/0249172 A1IP Holding Company
- Pump with evacuated driver17 Jul 2025US 2025/0229019 A1IP Holding Company
- Autoinjector with finger grip17 Jul 2025US 2025/0229031 A1IP Holding Company
- Pump unit, storage device equipped therewith, and method for operating the storage device15 Aug 2024US 2024/0271611 A1Scheugenpflug GmbH
Most cited
By later US patents
- Vacuum driven fluid pump for an aspiration/irrigation instrument119US 5,542,918 AZimmer, Inc. · 1996
- Leak detection assembly84US 5,635,630 AChrysler Corporation · 1997
- Leak detection assembly49US 5,495,749 AChrysler Corporation · 1996
- Integrity confirmation of evaporative emission control system against leakage47US 5,383,437 ASiemens Automotive Corporation · 1995
- Medical fluid pump powered by a constant source of vacuum34US 5,554,011 ASymbiosis Corporation · 1996