F16J 15/04
Without packing between the surfaces
Official title: without packing between the surfaces, e.g. with ground surfaces, with cutting edge
F16J15/04 (Without packing between the surfaces) appears on 78 US grants and 78 published applications in this corpus.
Search patents in F16J- Granted patents
- 78
- Published applications
- 78
- Assignees
- 77
- Inventors
- 185
- Latest grant
- 4 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 2 |
| 2004 | 2 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 3 | 3 |
| 2008 | 0 | 4 |
| 2009 | 0 | 1 |
| 2010 | 2 | 3 |
| 2011 | 2 | 4 |
| 2012 | 0 | 1 |
| 2013 | 2 | 5 |
| 2014 | 5 | 6 |
| 2015 | 3 | 9 |
| 2016 | 8 | 12 |
| 2017 | 6 | 6 |
| 2018 | 7 | 5 |
| 2019 | 7 | 4 |
| 2020 | 7 | 4 |
| 2021 | 2 | 2 |
| 2022 | 0 | 2 |
| 2023 | 3 | 1 |
| 2024 | 2 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Seal with siding channel4 Mar 2025US 12,241,550 B2Jaeger-Unitek Sealing Solutions, Inc.
- Zero-gap hanger systems and methods30 Apr 2024US 11,970,920 B2Cameron International Corporation
- Sealing structure and method of manufacturing the same20 Feb 2024US 11,906,048 B2Newfrey LLC
- Hydraulic tool mount and sealing piston for such a mount22 Aug 2023US 11,732,804 B2Kennametal Inc.
- Fluid seal having multiple diameters4 Apr 2023US 11,619,305 B2
- Seal part forming method and device assembling method5 Dec 2024US 2024/0401699 A1Hitachi Astemo, Ltd.
- Seal with siding channel10 Aug 2023US 2023/0250876 A1Jaeger-Unitek Sealing Solutions, Inc.
- Sealing structure and method of manufacturing the same17 Nov 2022US 2022/0364644 A1Newfrey LLC
- Zero-gap hanger systems and methods18 Aug 2022US 2022/0259938 A1Cameron International Corporation
- Metal to metal vee seal14 Oct 2021US 2021/0317914 A1Patriot Research Center, LLC
Most cited
By later US patents
- Inverted bellows valve57US 4,687,017 ANupro Company · 1987
- Method for detecting wear at connections between pin and box joints40US 6,009,611 AOil & Gas Rental Services, Inc. · 2000
- Modular flow devices31US 6,123,340 ASwagelok Company · 2000
- Housing seal interface27US 5,199,239 AHoneywell Inc. · 1993
- Non-gasket sealing structure24US 6,123,339 ADaiso Co., Ltd. · 2000