F16J 15/441
With floating ring
Official title: {with floating ring}
F16J15/441 (With floating ring) appears on 666 US grants and 608 published applications in this corpus.
Search patents in F16J- Granted patents
- 666
- Published applications
- 608
- Assignees
- 214
- Inventors
- 1,041
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 7 | 0 |
| 1978 | 3 | 0 |
| 1979 | 12 | 0 |
| 1980 | 7 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 7 | 0 |
| 1984 | 8 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 9 | 0 |
| 1992 | 7 | 0 |
| 1993 | 5 | 0 |
| 1994 | 8 | 0 |
| 1995 | 5 | 0 |
| 1996 | 7 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 14 | 0 |
| 2001 | 13 | 4 |
| 2002 | 16 | 9 |
| 2003 | 10 | 12 |
| 2004 | 8 | 15 |
| 2005 | 9 | 8 |
| 2006 | 5 | 14 |
| 2007 | 9 | 22 |
| 2008 | 8 | 21 |
| 2009 | 6 | 14 |
| 2010 | 16 | 16 |
| 2011 | 14 | 25 |
| 2012 | 17 | 20 |
| 2013 | 18 | 22 |
| 2014 | 20 | 23 |
| 2015 | 17 | 23 |
| 2016 | 20 | 35 |
| 2017 | 20 | 36 |
| 2018 | 32 | 50 |
| 2019 | 46 | 48 |
| 2020 | 50 | 62 |
| 2021 | 54 | 37 |
| 2022 | 39 | 34 |
| 2023 | 30 | 20 |
| 2024 | 25 | 17 |
| 2025 | 16 | 9 |
| 2026 | 10 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sealing ring25 Aug 2026US 12,716,361 B2Industria De Turbo Propulsores, S.A.U.
- Seal device, rotating machine, and method for mounting seal device16 Jun 2026US 12,655,909 B2Mitsubishi Heavy Industries, Ltd.
- Gas energized seal for Gifford-McMahon expander26 May 2026US 12,638,220 B2Sumitomo (Shi) Cryogenic of America, Inc.
- Method of mitigating vibrations in a seal component7 Apr 2026US 12,595,747 B2Pratt & Whitney Canada Corp.
- Labyrinth seal arrangement7 Apr 2026US 12,595,851 B2Martin GmbH fur Umwelt- und Energietechnik
- Axial pump with reduced clearance feature1 Oct 2026US 2026/0298345 A1Pratt & Whitney Canada Corp.
- Seal device24 Sep 2026US 2026/0287062 A1Mitsubishi Heavy Industries, Ltd.
- Hydrostatic annular seal10 Sep 2026US 2026/0266188 A1Safran Aircraft Engines
- Shaft Seal Assembly3 Sep 2026US 2026/0258869 A1Inpro/Seal LLC
- Seal ring16 Jul 2026US 2026/0201959 A1Nok Corporation
Most cited
By later US patents
- Thermal seal for a gas turbine spacer disc1,527US 5,080,556 AGeneral Electric Company · 1992
- Permanent magnet floating shaft seal499US 5,137,286 AGeneral Electric Company · 1992
- Hydrodynamic lift seal for use with compressible fluids90US 6,145,843 AStein Seal Company · 2000
- Effective sealing device for engine flowpath85US 5,169,159 AGeneral Electric Company · 1992
- Noncontacting finger seal81US 6,811,154 B2The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 2004