F16J 15/002
Comprising at least two sealings in succession
Official title: {comprising at least two sealings in succession (F16J15/162, F16J15/40 take precedence)}
F16J15/002 (Comprising at least two sealings in succession) appears on 828 US grants and 658 published applications in this corpus.
Search patents in F16J- Granted patents
- 828
- Published applications
- 658
- Assignees
- 570
- Inventors
- 1,726
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 6 | 0 |
| 1978 | 21 | 0 |
| 1979 | 9 | 0 |
| 1980 | 15 | 0 |
| 1981 | 18 | 0 |
| 1982 | 14 | 0 |
| 1983 | 13 | 0 |
| 1984 | 21 | 0 |
| 1985 | 14 | 0 |
| 1986 | 17 | 0 |
| 1987 | 14 | 0 |
| 1988 | 15 | 0 |
| 1989 | 15 | 0 |
| 1990 | 15 | 0 |
| 1991 | 23 | 0 |
| 1992 | 11 | 0 |
| 1993 | 8 | 0 |
| 1994 | 16 | 0 |
| 1995 | 6 | 0 |
| 1996 | 10 | 0 |
| 1997 | 9 | 0 |
| 1998 | 9 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 16 | 5 |
| 2002 | 10 | 11 |
| 2003 | 6 | 13 |
| 2004 | 13 | 14 |
| 2005 | 11 | 16 |
| 2006 | 14 | 14 |
| 2007 | 5 | 14 |
| 2008 | 5 | 16 |
| 2009 | 5 | 14 |
| 2010 | 8 | 27 |
| 2011 | 7 | 20 |
| 2012 | 9 | 9 |
| 2013 | 13 | 26 |
| 2014 | 15 | 19 |
| 2015 | 20 | 40 |
| 2016 | 15 | 43 |
| 2017 | 35 | 34 |
| 2018 | 36 | 40 |
| 2019 | 41 | 43 |
| 2020 | 29 | 51 |
| 2021 | 31 | 32 |
| 2022 | 37 | 39 |
| 2023 | 34 | 26 |
| 2024 | 37 | 37 |
| 2025 | 30 | 28 |
| 2026 | 18 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multi-layer and multi-ringed seals for preventing permeation and leak-by of fluid15 Sep 2026US 12,736,132 B2Lam Research Corporation
- Sealing system for components of a gas analyzer15 Sep 2026US 12,736,134 B2Inficon GmbH
- Process chamber vacuum seal leakage reduction8 Sep 2026US 12,729,766 B2APPLIED Materials.Inc.
- Sealing assembly with repositionable seal11 Aug 2026US 12,704,119 B2Gd Energy Products, LLC
- Double seal element seal assembly for aircraft system28 Jul 2026US 12,692,939 B2Pratt & Whitney Canada Corp.
- Sealing device8 Oct 2026US 2026/0309230 A1Nok Corporation
- Leak containment and support housing system8 Oct 2026US 2026/0311899 A1
- Sealed ortho-grid laser and imaging director with a multistage seal17 Sep 2026US 2026/0274386 A1The United States of America Department of the Navy
- Compressor dry gas seal emissions10 Sep 2026US 2026/0266306 A1AES Engineering Ltd.
- Seal gas emissions from dry gas seals10 Sep 2026US 2026/0266371 A1AES Engineering Ltd.
Most cited
By later US patents
- Emergency shaft seal device by deformation of packing ring247US 4,541,638 ANipon Pillar Packing Co.. Ltd. · 1985
- Brush seal107US 4,756,536 AROLLS-ROYCE plc · 1988
- Rod seal cartridge for progressing cavity artificial lift pumps106US 5,823,541 AKalsi Engineering, Inc. · 1998
- Pump for soil fumigant89US 4,141,676 AJohn Blue Company Division of Subscription Television, Inc. · 1979
- Bimetallic C-ring seal79US 4,658,847 AThe Fluorocarbon Company · 1987