F16L 25/0054
With specially shaped sealing rings
Official title: {with specially shaped sealing rings}
F16L25/0054 (With specially shaped sealing rings) appears on 65 US grants and 78 published applications in this corpus.
Search patents in F16L- Granted patents
- 65
- Published applications
- 78
- Assignees
- 50
- Inventors
- 103
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 2 |
| 2002 | 4 | 3 |
| 2003 | 3 | 2 |
| 2004 | 1 | 7 |
| 2005 | 4 | 5 |
| 2006 | 2 | 2 |
| 2007 | 1 | 3 |
| 2008 | 4 | 1 |
| 2009 | 0 | 4 |
| 2010 | 1 | 6 |
| 2011 | 1 | 1 |
| 2012 | 1 | 5 |
| 2013 | 2 | 3 |
| 2014 | 8 | 4 |
| 2015 | 2 | 3 |
| 2016 | 3 | 2 |
| 2017 | 5 | 2 |
| 2018 | 1 | 2 |
| 2019 | 3 | 3 |
| 2020 | 1 | 0 |
| 2021 | 2 | 1 |
| 2022 | 0 | 3 |
| 2023 | 1 | 5 |
| 2024 | 4 | 4 |
| 2025 | 2 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Wear ring14 Apr 2026US 12,601,429 B2ABB Schweiz AG
- Arc resistant corrugated tubing system with protective jacket and fitting14 Oct 2025US 12,442,470 B2Omega Flex, Inc.
- Connection device for a peripherally ribbed pipe19 Aug 2025US 12,392,430 B2Viessmann Climate Solutions SE
- Fitting, a method for connecting corrugated tubing to a fitting and use of a fitting30 Jul 2024US 12,049,971 B2Omega Flex, Inc.
- Arc resistant corrugated tubing system with protective jacket and fitting28 May 2024US 11,994,241 B2Omega Flex, Inc.
- Piping connection system and method of use17 Sep 2026US 2026/0276109 A1SpringSeal, Inc.
- Stainless-steel corrugated pipe assembly21 May 2026US 2026/0139768 A1Taizhou Kloe Dafeng Plumbing Co., Ltd.
- Bell and Spigot and Method of Making Same14 Aug 2025US 2025/0257827 A1SpringSeal, Inc.
- Coupling structure and grommet24 Jul 2025US 2025/0237334 A1Toyota Jidosha Kabushiki Kaisha
- Plastic corrugated pipe dual wall to concrete manhole sleeve adapter27 Mar 2025US 2025/0102088 A1Advanced Drainage Systems, Inc.
Most cited
By later US patents
- Annular gasket with locking structure43US 6,367,802 B1Malcolm Mann, Inc. · 2002
- Gasket for making joints in corrugated plastic pipe40US 4,702,502 AContech Construction Products Inc. · 1987
- Symmetrical gasket for a pipe joint with increased surface contact38US 6,719,302 B2Vertex, Inc. · 2004
- Resilient pipe gasket36US 6,082,741 AIpex Inc. · 2000
- Method of joining tubes having a corrugated wall of plastic material35US 5,053,097 AUponor N.V. · 1991