F16J 15/4474
Pre-assembled packings
Official title: {Pre-assembled packings}
F16J15/4474 (Pre-assembled packings) appears on 78 US grants and 41 published applications in this corpus.
Search patents in F16J- Granted patents
- 78
- Published applications
- 41
- Assignees
- 45
- Inventors
- 93
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 1 |
| 2003 | 1 | 2 |
| 2004 | 2 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 5 |
| 2008 | 1 | 1 |
| 2009 | 2 | 0 |
| 2010 | 1 | 3 |
| 2011 | 2 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 3 |
| 2015 | 1 | 3 |
| 2016 | 6 | 6 |
| 2017 | 0 | 0 |
| 2018 | 2 | 3 |
| 2019 | 2 | 0 |
| 2020 | 3 | 2 |
| 2021 | 3 | 3 |
| 2022 | 1 | 3 |
| 2023 | 2 | 0 |
| 2024 | 1 | 3 |
| 2025 | 4 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High pressure gas sealing23 Jun 2026US 12,663,015 B2Dover Pumps & Process Solutions Segment, Inc.
- Sealing device2 Sep 2025US 12,404,933 B2Uchiyama Manufacturing Corp.
- Labyrinth seal comprising an abradable element with variable cell density15 Jul 2025US 12,359,582 B2Safran Aircraft Engines
- Shaft seal assembly13 May 2025US 12,297,909 B2Inpro/Seal LLC
- Sealing assembly for bearings, in particular for use in agriculture25 Feb 2025US 12,234,913 B2Aktiebolaget Skf
- High pressure gas sealing13 Mar 2025US 2025/0084863 A1Dover Pumps & Process Solutions Segment, Inc.
- Sealing device12 Sep 2024US 2024/0301917 A1Uchiyama Manufacturing Corp.
- High pressure gas sealing7 Mar 2024US 2024/0077083 A1Dover Pumps & Process Solutions Segment, Inc.
- Sealing assembly for bearings, in particular for use in agriculture11 Jan 2024US 2024/0011563 A1Aktiebolaget Skf
- Sealing assembly for bearings, in particular for use in agriculture1 Dec 2022US 2022/0381348 A1Aktiebolaget Skf
Most cited
By later US patents
- Sealing rings70US 4,022,479 A1977
- Labyrinth bearing protector seal63US 4,743,034 ADurametallic Corporation · 1988
- Sealing rings50US 4,114,902 AInPro Corporation · 1978
- Multi-position labyrinth seal ring49US 5,024,451 AGarlock Inc. · 1991
- Bearing protector with slinger ring48US 4,890,941 ADurametallic Corporation · 1990