F16J 15/188
Split assemblies
Official title: {Split assemblies}
F16J15/188 (Split assemblies) appears on 46 US grants and 49 published applications in this corpus.
Search patents in F16J- Granted patents
- 46
- Published applications
- 49
- Assignees
- 42
- Inventors
- 107
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 3 | 3 |
| 2020 | 0 | 3 |
| 2021 | 3 | 5 |
| 2022 | 2 | 4 |
| 2023 | 4 | 6 |
| 2024 | 5 | 7 |
| 2025 | 7 | 3 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sealing system11 Aug 2026US 12,704,181 B2Driventic GmbH
- Sealing ring and sealed structure including same5 May 2026US 12,618,473 B2Nok Corporation
- Piston sealing ring assembly having a gap cover element24 Feb 2026US 12,560,235 B2Mainspring Energy, Inc.
- Mechanical sealing device for sealing liquid30 Dec 2025US 12,510,161 B2AIGI Environmental Inc.
- Shaft sealing structure9 Sep 2025US 12,410,864 B2SMC Corporation
- Piston sealing ring assembly having a gap cover element13 Aug 2026US 2026/0235203 A1Mainspring Energy, Inc.
- Wiper ring for reciprocating compressor rod packing28 May 2026US 2026/0146594 A1Compressor Products International LLC (Cpi)
- Seal structure26 Mar 2026US 2026/0085770 A1Tatsuno Corporation
- Mechanical packing cartridge having a spiral packing element for use with a fluid regulating device12 Feb 2026US 2026/0043476 A1A. W. Chesterton Company
- Shutoff valve29 Jan 2026US 2026/0029066 A1Tatsuno Corporation
Most cited
By later US patents
- Sealing combination50US 4,807,890 AEsco Elevators, Inc. · 1989
- Device for the float mounting a sealed housing32US 7,036,824 B2List AG · 2006
- Anti-corrosive stuffing box assembly27US 4,896,367 AH & R Valve, Ltd. · 1990
- Method and apparatus for establishing and maintaining a fluid seal around a polishing rod24US 5,577,737 AUniversal Stuffing Box, Inc. · 1996
- Split ring sealing device for high pressure service22US 4,580,788 AFoster Wheeler Energy Corporation · 1986