F16J 3/047
Metallic bellows
Official title: {Metallic bellows}
F16J3/047 (Metallic bellows) appears on 88 US grants and 69 published applications in this corpus.
Search patents in F16J- Granted patents
- 88
- Published applications
- 69
- Assignees
- 73
- Inventors
- 185
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 1 |
| 2008 | 2 | 1 |
| 2009 | 1 | 8 |
| 2010 | 2 | 1 |
| 2011 | 2 | 2 |
| 2012 | 2 | 6 |
| 2013 | 3 | 3 |
| 2014 | 4 | 4 |
| 2015 | 4 | 2 |
| 2016 | 5 | 3 |
| 2017 | 2 | 2 |
| 2018 | 3 | 7 |
| 2019 | 8 | 0 |
| 2020 | 1 | 5 |
| 2021 | 2 | 3 |
| 2022 | 3 | 4 |
| 2023 | 3 | 1 |
| 2024 | 3 | 6 |
| 2025 | 3 | 3 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Bellows with controlled shift of mean effective diameter19 May 2026US 12,631,253 B2Eaton Intelligent Power Limited
- Bidirectional one piece metal seat for ball valve28 Apr 2026US 12,612,971 B2Bray International, Inc.
- Method and apparatus for the hermetic sealing of martensitic metals for precompression for cryogenic applications13 Jan 2026US 12,523,297 B2
- Separator and hydraulic accumulator having such a separator2 Sep 2025US 12,404,879 B2Hydac Technology GmbH
- Metal bellows for downhole use18 Mar 2025US 12,253,175 B2Tco AS
- Welding surface for bellows and downhole motor11 Jun 2026US 2026/0160247 A1
- Separator and Hydraulic Accumulator Having Such a Separator25 Dec 2025US 2025/0389283 A1Hydac Technology GmbH
- Accumulator3 Jul 2025US 2025/0215905 A1NHK Spring Co., Ltd.
- Method and apparatus for the hermetic sealing of martensitic metals for precompression for cryogenic applications2 Jan 2025US 2025/0003493 A1
- Manufacturing of Wear Resistant Coatings12 Dec 2024US 2024/0410046 A1
Most cited
By later US patents
- Mechanical face seals31US 5,011,166 AJohn Crane UK Limited · 1991
- Anticorrosive bellows29US 4,171,218 ASumitomo Chemical Company, Limited · 1979
- Bellows element22US 4,340,089 AIWK Regler und Kompensatoren GmbH · 1982
- Fluid flow facilitating arrangement which includes a coned ring19US 4,799,654 A1989
- Pressure balanced bellows seal19US 5,662,335 A1997