F04B 37/16
Means for nullifying unswept space
F04B37/16 (Means for nullifying unswept space) appears on 34 US grants and 33 published applications in this corpus.
Search patents in F04B- Granted patents
- 34
- Published applications
- 33
- Assignees
- 23
- Inventors
- 55
- Latest grant
- 11 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 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 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 1 |
| 2017 | 2 | 5 |
| 2018 | 1 | 2 |
| 2019 | 1 | 4 |
| 2020 | 2 | 4 |
| 2021 | 2 | 4 |
| 2022 | 5 | 0 |
| 2023 | 6 | 4 |
| 2024 | 2 | 3 |
| 2025 | 6 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Cleaning apparatus for vacuum exhaust system11 Nov 2025US 12,467,442 B2Edwards Japan Limited
- Vacuum pump and control device2 Sep 2025US 12,404,863 B2Edwards Japan Limited
- High pressure water pump fluid end27 May 2025US 12,313,063 B2NLB Corp.
- Integrated connector between first and second vacuum pumps creating a vapor phase region environment15 Apr 2025US 12,276,283 B2Edwards Japan Limited
- Vacuum exhaust system18 Feb 2025US 12,228,951 B2Edwards Japan Limited
- Gas jet deflection in pressurized systems10 Apr 2025US 2025/0116264 A1SHINE Technologies, LLC
- Vacuum pump and control device16 Jan 2025US 2025/0020132 A1Edwards Japan Limited
- Cryopump system and regeneration controller14 Nov 2024US 2024/0376877 A1Sumitomo Heavy Industries, Ltd.
- Gas jet deflection in pressurized systems5 Sep 2024US 2024/0295213 A1SHINE Technologies, LLC
- High pressure water pump fluid end18 Jan 2024US 2024/0018958 A1NLB Corp.
Most cited
By later US patents
- Push rod and tappet assembly11US 3,951,046 AGeneral Motors Corporation · 1976
- Piston pump with discharge valve, inlet valve and misalignment compensating means in a pump head10US 4,370,103 AArrowhead Research Corporation · 1983
- Multistage vacuum pump7US 5,482,443 ACommonwealth Scientific and Industrial Research Organization · 1996
- Vacuum evacuation system4US 10,978,315 B2Ebara Corporation · 2021
- Multistage vacuum pump4US 5,632,605 ACommonwealth Scientific and Industrial Research Organisation · 1997