F16L 21/035
Placed around the spigot end before connection
Official title: placed around the spigot end before connection ({F16L21/022,} F16L21/025 take precedence)
F16L21/035 (Placed around the spigot end before connection) appears on 181 US grants and 201 published applications in this corpus.
Search patents in F16L- Granted patents
- 181
- Published applications
- 201
- Assignees
- 164
- Inventors
- 420
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 9 | 1 |
| 2002 | 3 | 2 |
| 2003 | 2 | 1 |
| 2004 | 3 | 9 |
| 2005 | 5 | 4 |
| 2006 | 3 | 6 |
| 2007 | 0 | 3 |
| 2008 | 4 | 13 |
| 2009 | 0 | 9 |
| 2010 | 7 | 9 |
| 2011 | 5 | 6 |
| 2012 | 2 | 3 |
| 2013 | 0 | 12 |
| 2014 | 6 | 10 |
| 2015 | 8 | 25 |
| 2016 | 8 | 11 |
| 2017 | 11 | 10 |
| 2018 | 10 | 10 |
| 2019 | 6 | 6 |
| 2020 | 11 | 10 |
| 2021 | 6 | 7 |
| 2022 | 8 | 3 |
| 2023 | 8 | 10 |
| 2024 | 5 | 11 |
| 2025 | 5 | 8 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Assembly of resin pipe and metal member and method of manufacturing assembly15 Sep 2026US 12,736,158 B2The Yokohama Rubber Co., Ltd.
- Pipe connection device for repairs31 Mar 2026US 12,590,656 B2
- Tool and method for one-handed manipulation and placement of conduit-joining sleeve3 Mar 2026US 12,565,950 B2Anthem Aviation LLC
- Dishwasher13 Jan 2026US 12,520,985 B2Samsung Electronics Co., Ltd.
- Wye fitting attachment23 Sep 2025US 12,422,082 B2Goodrich Corporation
- Pipe, pipe connection and pipeline system28 May 2026US 2026/0146691 A1Core Linepipe Inc.
- Dishwasher2 Apr 2026US 2026/0090697 A1Samsung Electronics Co., Ltd.
- Fluid couplings27 Nov 2025US 2025/0361960 A1Colder Products Company
- O-ring gland fittings for liquid cooling with o-ring compression seal having redundant non-radial seal pairs30 Oct 2025US 2025/0338437 A1Hewlett Packard Enterprise Development LP
- Tool and method for one-handed manipulation and placement of conduit-joining sleeve4 Sep 2025US 2025/0277550 A1Anthem Aviation LLC
Most cited
By later US patents
- Pipe joint seal76US 5,143,381 APipe Gasket & Supply Co., Inc. · 1992
- Packing ring for ribbed conduits63US 4,304,415 AWOCO Franz-Josef Wolf & Co. · 1981
- Tubular connectors61US 4,050,703 ALindab, Lindhs Industri AB · 1977
- Resilient sealing ring60US 4,182,519 A1980
- Tubular element with sealing means and a method for manufacturing the tubular element51US 6,170,883 B2Lindab AB · 2001