F16J 15/46
Sealings: with packing ring expanded or pressed into place by fluid pressure
Official title: with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings (connection of valves to inflatable elastic bodies B60C29/00; {for sealing arrangements in vehicles B60J10/244; for sealing arrangements of openings in buildings E06B7/2318}; for tube connections F16L)
F16J15/46 (Sealings: with packing ring expanded or pressed into place by fluid pressure) appears on 480 US grants and 314 published applications in this corpus.
Search patents in F16J- Granted patents
- 480
- Published applications
- 314
- Assignees
- 387
- Inventors
- 1,001
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 8 | 0 |
| 1978 | 8 | 0 |
| 1979 | 7 | 0 |
| 1980 | 12 | 0 |
| 1981 | 10 | 0 |
| 1982 | 13 | 0 |
| 1983 | 13 | 0 |
| 1984 | 14 | 0 |
| 1985 | 11 | 0 |
| 1986 | 18 | 0 |
| 1987 | 11 | 0 |
| 1988 | 16 | 0 |
| 1989 | 13 | 0 |
| 1990 | 9 | 0 |
| 1991 | 12 | 0 |
| 1992 | 5 | 0 |
| 1993 | 9 | 0 |
| 1994 | 9 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 10 | 3 |
| 2002 | 6 | 6 |
| 2003 | 6 | 10 |
| 2004 | 4 | 4 |
| 2005 | 8 | 8 |
| 2006 | 4 | 6 |
| 2007 | 5 | 6 |
| 2008 | 1 | 4 |
| 2009 | 3 | 11 |
| 2010 | 4 | 18 |
| 2011 | 6 | 13 |
| 2012 | 8 | 12 |
| 2013 | 11 | 10 |
| 2014 | 10 | 21 |
| 2015 | 12 | 10 |
| 2016 | 8 | 14 |
| 2017 | 13 | 18 |
| 2018 | 15 | 21 |
| 2019 | 23 | 18 |
| 2020 | 18 | 19 |
| 2021 | 15 | 16 |
| 2022 | 14 | 20 |
| 2023 | 15 | 13 |
| 2024 | 11 | 15 |
| 2025 | 21 | 10 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Piston ring seal with reduced stiction18 Aug 2026US 12,710,063 B2
- Inflatable mounting seal19 May 2026US 12,631,246 B2ZF Friedrichshafen AG
- Pressure seal coupling device, pressure seal, door of an aircraft, and method for installing a pressure seal27 Jan 2026US 12,535,137 B2Airbus Operations GmbH
- Sealing arrangement11 Nov 2025US 12,467,539 B2Andritz Inc.
- Bonded double wall seal assembly4 Nov 2025US 12,460,602 B2The Boeing Company
- Bearing seal structure11 Jun 2026US 2026/0160337 A1
- System and method for automatically sensing a position of a packing loading assembly with a position sensor28 May 2026US 2026/0146671 A1A. W. Chesterton Company
- Seals For Multi-Surface Sealing28 May 2026US 2026/0146673 A1Kinetic Pressure Control Ltd.
- Seal for a propulsion assembly14 May 2026US 2026/0132851 A1Safran Aircraft Engines
- Internally pressurized and lubricated shaft seals and bearings for pumps5 Mar 2026US 2026/0063134 A1Knuco 1, LLC
Most cited
By later US patents
- Emergency shaft seal device by deformation of packing ring247US 4,541,638 ANipon Pillar Packing Co.. Ltd. · 1985
- Pressure actuated metal-to-metal seal126US 4,324,407 AAeroquip Corporation · 1982
- Non-extruding inflatable packer assembly109US 4,349,204 ALynes, Inc. · 1982
- Hydraulically operated actuator100US 4,429,620 AExxon Production Research Company · 1984
- Inflatable anchor element and packer employing same96US 4,424,861 AHalliburton Company · 1984