F16L 17/025
The sealing rings having radially directed ribs
Official title: the sealing rings having radially directed ribs
F16L17/025 (The sealing rings having radially directed ribs) appears on 137 US grants and 109 published applications in this corpus.
Search patents in F16L- Granted patents
- 137
- Published applications
- 109
- Assignees
- 91
- Inventors
- 215
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 7 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 6 |
| 2006 | 3 | 4 |
| 2007 | 2 | 1 |
| 2008 | 1 | 1 |
| 2009 | 4 | 8 |
| 2010 | 0 | 8 |
| 2011 | 3 | 2 |
| 2012 | 3 | 6 |
| 2013 | 0 | 4 |
| 2014 | 9 | 11 |
| 2015 | 4 | 7 |
| 2016 | 11 | 6 |
| 2017 | 6 | 5 |
| 2018 | 4 | 8 |
| 2019 | 8 | 3 |
| 2020 | 8 | 7 |
| 2021 | 3 | 6 |
| 2022 | 6 | 4 |
| 2023 | 6 | 3 |
| 2024 | 1 | 1 |
| 2025 | 4 | 1 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Rieber sealing system with plastic retainer ring11 Nov 2025US 12,466,123 B2S & B Technical Products, Inc.
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- Seal component for fluid distribution system18 Feb 2025US 12,228,224 B1Twm IP, LLC
- Pipe joint insert device, pipe joint assembly, and methods of forming same30 Jul 2026US 2026/0218830 A1Westlake Pipe & Fittings Corporation
- Pipe joint insert device, pipe joint assembly, and methods of forming same30 Jul 2026US 2026/0218831 A1Westlake Pipe & Fittings Corporation
- Gasket for pipe fitting assembly4 Jun 2026US 2026/0153169 A1ASC Engineered Solutions, LLC
- Plastic corrugated pipe dual wall to concrete manhole sleeve adapter27 Mar 2025US 2025/0102088 A1Advanced Drainage Systems, Inc.
- Quick connection clamping hoop28 Mar 2024US 2024/0102588 A1Shandong Lede Machinery Co., Ltd.
Most cited
By later US patents
- Symmetrical gasket for pipe joints94US 5,169,161 AHail Mary Rubber Co., Inc. · 1992
- Tubular connectors61US 4,050,703 ALindab, Lindhs Industri AB · 1977
- Pipe coupling61US 6,481,762 B1Glynwed Pipe Systems Limited · 2002
- Flexible seal60US 4,426,095 AConcrete Pipe & Products Corp. · 1984
- Forgiving profile pipe gasket57US 4,664,421 A1987