F16L 17/032
The sealing rings having only one lip
Official title: {the sealing rings having only one lip}
F16L17/032 (The sealing rings having only one lip) appears on 54 US grants and 45 published applications in this corpus.
Search patents in F16L- Granted patents
- 54
- Published applications
- 45
- Assignees
- 37
- Inventors
- 85
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 2 |
| 2010 | 0 | 1 |
| 2011 | 2 | 4 |
| 2012 | 0 | 1 |
| 2013 | 3 | 6 |
| 2014 | 2 | 4 |
| 2015 | 2 | 0 |
| 2016 | 2 | 3 |
| 2017 | 3 | 1 |
| 2018 | 2 | 1 |
| 2019 | 2 | 3 |
| 2020 | 3 | 3 |
| 2021 | 2 | 5 |
| 2022 | 3 | 0 |
| 2023 | 1 | 3 |
| 2024 | 3 | 1 |
| 2025 | 3 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sealing device and sealing structure19 May 2026US 12,631,254 B2Nok Corporation
- Pipe apparatus, coupling devices, and methods26 Aug 2025US 12,398,831 B2Lubrizol Advanced Materials, Inc.
- Segmented grip ring for plastic pipe joint restraint systems8 Apr 2025US 12,270,495 B2S & B Technical Products, Inc.
- Sealed pipeline connection, pipeline sleeve, and lockable pipeline seals and method of making same18 Mar 2025US 12,253,192 B2Lps IP, LLC
- Housing type pipe joint3 Dec 2024US 12,158,224 B2Sango Co., Ltd.
- Sealing Device And Sealing Structure21 Aug 2025US 2025/0264159 A1Nok Corporation
- Pipe Fitting Seal and Pipe Connecting Structure15 May 2025US 2025/0155057 A1Shanghai Vision Mechanical Joint Co., Ltd.
- Pipe apparatus, coupling devices, and methods13 Feb 2025US 2025/0052342 A1Lubrizol Advanced Materials, Inc.
- Segmented Grip Ring For Plastic Pipe Joint Restraint Systems16 May 2024US 2024/0159333 A1S & B Technical Products, Inc.
- Sealed pipeline connection, pipeline sleeve, and lockable pipeline seals and method of making same14 Sep 2023US 2023/0287999 A1Lps IP, LLC
Most cited
By later US patents
- Production of socket ends in thermoplastic pipes63US 4,299,412 ARieber & Son A/S · 1981
- Sealing ring for sealing a pipe joint41US 5,064,207 AForsheda AB · 1991
- Pipe coupling38US 6,142,536 AAlia Engineering AG · 2000
- Composite gasket and fitting including same34US 4,693,483 AVassallo Research and Development Corporation · 1987
- Couplings for connecting vehicle exhaust tail pipes to exhaust conduits for removing vehicle exhaust gases31US 4,779,904 A1988