F04D 19/04
Specially adapted to the production of a high vacuum
Official title: specially adapted to the production of a high vacuum, e.g. molecular pumps
F04D19/04 (Specially adapted to the production of a high vacuum) appears on 944 US grants and 913 published applications in this corpus.
Search patents in F04D- Granted patents
- 944
- Published applications
- 913
- Assignees
- 226
- Inventors
- 1,187
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 10 | 0 |
| 1989 | 10 | 0 |
| 1990 | 9 | 0 |
| 1991 | 12 | 0 |
| 1992 | 14 | 0 |
| 1993 | 8 | 0 |
| 1994 | 13 | 0 |
| 1995 | 15 | 0 |
| 1996 | 18 | 0 |
| 1997 | 14 | 0 |
| 1998 | 9 | 0 |
| 1999 | 14 | 0 |
| 2000 | 20 | 0 |
| 2001 | 26 | 12 |
| 2002 | 39 | 30 |
| 2003 | 32 | 43 |
| 2004 | 32 | 25 |
| 2005 | 27 | 39 |
| 2006 | 22 | 30 |
| 2007 | 12 | 35 |
| 2008 | 14 | 41 |
| 2009 | 13 | 30 |
| 2010 | 25 | 37 |
| 2011 | 22 | 30 |
| 2012 | 28 | 24 |
| 2013 | 16 | 34 |
| 2014 | 26 | 48 |
| 2015 | 18 | 44 |
| 2016 | 27 | 29 |
| 2017 | 39 | 29 |
| 2018 | 30 | 33 |
| 2019 | 40 | 43 |
| 2020 | 34 | 43 |
| 2021 | 36 | 37 |
| 2022 | 43 | 62 |
| 2023 | 37 | 43 |
| 2024 | 52 | 42 |
| 2025 | 33 | 27 |
| 2026 | 19 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Multi-pressure integrated air pump18 Aug 2026US 12,710,032 B2Intex Marketing Ltd.
- Vacuum pump11 Aug 2026US 12,704,127 B2Milwaukee Electric Tool Corporation
- Vacuum pump28 Jul 2026US 12,692,870 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, control device, and warmup time control method10 Sep 2026US 2026/0266297 A1Edwards Japan Limited
Most cited
By later US patents
- Apparatus and method for regulating a pressure in a chamber203US 5,944,049 AAPPLIED Materials.Inc. · 1999
- Integrated turbo pump and control valve system167US 6,161,576 AMKS Instruments, Inc. · 2000
- 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
- Evacuating unit with reduced diameter exhaust duct92US 6,474,949 B1Ebara Corporation · 2002
- Vacuum pump for producing a clean molecular vacuum85US 5,106,273 AAlcatel Cit · 1992