F04D 17/168
Pumps specially adapted to produce a vacuum
Official title: {Pumps specially adapted to produce a vacuum}
F04D17/168 (Pumps specially adapted to produce a vacuum) appears on 204 US grants and 188 published applications in this corpus.
Search patents in F04D- Granted patents
- 204
- Published applications
- 188
- Assignees
- 96
- Inventors
- 353
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 6 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 2 |
| 2002 | 11 | 5 |
| 2003 | 7 | 6 |
| 2004 | 5 | 3 |
| 2005 | 4 | 13 |
| 2006 | 8 | 9 |
| 2007 | 4 | 9 |
| 2008 | 2 | 6 |
| 2009 | 4 | 7 |
| 2010 | 3 | 12 |
| 2011 | 6 | 5 |
| 2012 | 9 | 4 |
| 2013 | 0 | 4 |
| 2014 | 5 | 5 |
| 2015 | 2 | 9 |
| 2016 | 5 | 10 |
| 2017 | 5 | 6 |
| 2018 | 2 | 7 |
| 2019 | 15 | 17 |
| 2020 | 10 | 10 |
| 2021 | 8 | 9 |
| 2022 | 13 | 9 |
| 2023 | 11 | 10 |
| 2024 | 7 | 7 |
| 2025 | 8 | 1 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vacuum for use with modular storage system7 Apr 2026US 12,593,946 B2Milwaukee Electric Tool Corporation
- Automatic vacuum sealer27 Jan 2026US 12,535,076 B2
- Vacuum pump5 Aug 2025US 12,378,967 B2Edwards Japan Limited
- Machine and method for vacuum assisted servicing of a fluid enclosure1 Jul 2025US 12,345,268 B2Red Dog Vac Trac LLC
- Vacuum pump20 May 2025US 12,305,652 B2Edwards Japan Limited
- Vacuum for Use with Modular Storage System4 Jun 2026US 2026/0151010 A1Milwaukee Electric Tool Corporation
- Method for manufacturing rotor14 May 2026US 2026/0131379 A1Shimadzu Corporation
- Shut-off valve and vacuum pump12 Mar 2026US 2026/0071631 A1Shimadzu Corporation
- Vacuum leak detector with multistage vacuum pump and integrated gas-specific gas sensor and method for producing a vacuum leak detector16 Jan 2025US 2025/0020534 A1Inficon GmbH
- Vacuum pump, vacuum pump bearing protection structure, and vacuum pump rotating body12 Dec 2024US 2024/0410379 A1Edwards Japan Limited
Most cited
By later US patents
- Turbo vacuum pump with a magnetically levitated rotor and a control unit for displacing the rotator at various angles to scrape deposits from the inside of the pump98US 5,961,291 AHitachi, Ltd. · 1999
- Turbomolecular vacuum pumps with low susceptiblity to particulate buildup40US 5,709,528 AVarian Associates, Inc. · 1998
- Friction vacuum pump with pump sections of different designs38US 5,695,316 ALeybold Aktiengesellschaft · 1997
- Vacuum pump37US 3,969,039 AAmerican Optical Corporation · 1976
- Vacuum evacuation system37US 4,797,068 AHitachi, Ltd. · 1989