F04D 19/042
Turbomolecular vacuum pumps
Official title: {Turbomolecular vacuum pumps}
F04D19/042 (Turbomolecular vacuum pumps) appears on 487 US grants and 560 published applications in this corpus.
Search patents in F04D- Granted patents
- 487
- Published applications
- 560
- Assignees
- 120
- Inventors
- 594
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 7 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 7 | 5 |
| 2002 | 12 | 8 |
| 2003 | 10 | 12 |
| 2004 | 9 | 7 |
| 2005 | 9 | 12 |
| 2006 | 7 | 10 |
| 2007 | 1 | 15 |
| 2008 | 6 | 23 |
| 2009 | 2 | 23 |
| 2010 | 10 | 22 |
| 2011 | 11 | 25 |
| 2012 | 20 | 15 |
| 2013 | 13 | 25 |
| 2014 | 23 | 34 |
| 2015 | 12 | 30 |
| 2016 | 20 | 18 |
| 2017 | 26 | 16 |
| 2018 | 26 | 25 |
| 2019 | 24 | 32 |
| 2020 | 23 | 33 |
| 2021 | 29 | 26 |
| 2022 | 32 | 49 |
| 2023 | 26 | 27 |
| 2024 | 38 | 32 |
| 2025 | 26 | 19 |
| 2026 | 12 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Shut-off valve, vacuum pump system, and vacuum pump29 Sep 2026US 12,747,793 B2Shimadzu Corporation
- Hermetic electrical feedthrough15 Sep 2026US 12,738,398 B2KYOCERA Corporation
- Vacuum pump28 Jul 2026US 12,692,870 B2Edwards Japan Limited
- Turbomolecular pump16 Jun 2026US 12,655,850 B2Detect-Ion LLC
- Vacuum pump, detoxifying device, and exhaust gas processing system26 May 2026US 12,638,176 B2Edwards Japan Limited
- Vacuum pump and stator disc24 Sep 2026US 2026/0286966 A1Edwards Japan Limited
- A vacuum pump and a permanent magnetic bearing assembly for a vacuum pump24 Sep 2026US 2026/0286969 A1
- Magnetic assembly and vacuum pump17 Sep 2026US 2026/0275991 A1Leybold Aktiengesellschaft
- Method for controlling the operating parameters of a turbomolecular vacuum pump17 Sep 2026US 2026/0275993 A1Pfeiffer Vacuum GmbH
- Vacuum pump and stator component10 Sep 2026US 2026/0266298 A1Edwards Japan Limited
Most cited
By later US patents
- Bearing arrangement56US 4,082,376 AArthur Pfeiffer Vakuumtechnik Wetzlar GmbH · 1978
- Turbomolecular vacuum pump having a gas bearing-supported rotor34US 3,969,042 ALeybold-Heraeus GmbH · 1976
- Turbomolecular pump28US 5,238,362 AVarian Associates, Inc. · 1993
- Dynamic seal28US 6,705,844 B2Leybold Vakuum GmbH · 2004
- Turbomolecular pump having vanes with ceramic and metallic surfaces27US 5,350,275 AZaidan Houjin Shinku Kagaku Kenkyujo · 1994