F16C 33/748
Flowing to or from the sealing gap
Official title: {flowing to or from the sealing gap, e.g. vacuum seals with differential exhaust}
F16C33/748 (Flowing to or from the sealing gap) appears on 72 US grants and 63 published applications in this corpus.
Search patents in F16C- Granted patents
- 72
- Published applications
- 63
- Assignees
- 48
- Inventors
- 155
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 8 |
| 2003 | 6 | 4 |
| 2004 | 5 | 6 |
| 2005 | 3 | 3 |
| 2006 | 6 | 5 |
| 2007 | 3 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 2 |
| 2011 | 2 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 2 | 3 |
| 2015 | 0 | 2 |
| 2016 | 3 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 3 |
| 2019 | 3 | 2 |
| 2020 | 2 | 3 |
| 2021 | 1 | 3 |
| 2022 | 4 | 4 |
| 2023 | 3 | 3 |
| 2024 | 4 | 3 |
| 2025 | 1 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sliding bearing unit and rotating anode X-ray tube7 Jul 2026US 12,676,277 B2Canon Electron Tubes & Devices Co., Ltd.
- Pick-up chuck with gas bearing structure27 Jan 2026US 12,533,818 B2Asmpt Singapore Pte. Ltd.
- Dustproof seal structure7 Oct 2025US 12,435,756 B2Mitutoyo Corporation
- Control apparatus and vacuum pump provided with said control apparatus17 Sep 2024US 12,092,123 B2Edwards Japan Limited
- Air bearing for use as seal23 Jul 2024US 12,044,272 B2New Way Machine Components, Inc.
- Hydrostatic gas bearing device28 May 2026US 2026/0146645 A1KYOCERA Corporation
- Air bearing arrangement for fuel cell compressors having an expander3 Jul 2025US 2025/0219494 A1ZF CV Systems Global GmbH
- Air bearing for use as seal16 Jan 2025US 2025/0020163 A1New Way Machine Components, Inc.
- Sliding element2 Jan 2025US 2025/0003495 A1Eagle Industry Co., Ltd.
- Sliding bearing unit and rotating anode x-ray tube17 Oct 2024US 2024/0347308 A1Canon Electron Tubes & Devices Co., Ltd.
Most cited
By later US patents
- Gas bearings for use with vacuum chambers and their application in lithographic projection apparatuses483US 6,603,130 B1ASML Netherlands B. V. · 2003
- Vacuum-sealed gas-bearing assembly52US 4,191,385 A1980
- Static pressure bearing51US 4,749,283 ACanon Kabushiki Kaisha · 1988
- Linear gas bearing with integral vacuum seal for use in serial process ion implantation equipment50US 4,726,689 AEclipse Ion Technology, Inc. · 1988
- Vacuum bearing structure and a method of supporting a movable member37US 6,515,288 B1APPLIED Materials.Inc. · 2003