F16L 55/00
Devices or appurtenances for use in, or in connection with, pipes or
Official title: Devices or appurtenances for use in, or in connection with, pipes or pipe systems (F16L1/00 - F16L53/00, F16L57/00, F16L59/00 take precedence; repairing or joining pipes on or under water F16L1/26; cleaning of pipes B08B9/02, e.g. removal of blockages B08B9/027; devices for preventing bursting of water pipes by freezing E03B7/10)
F16L55/00 (Devices or appurtenances for use in, or in connection with, pipes or) appears on 8,724 US grants and 7,122 published applications in this corpus.
Search patents in F16L- Granted patents
- 8,724
- Published applications
- 7,122
- Assignees
- 3,901
- Inventors
- 14,550
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 110 | 0 |
| 1977 | 88 | 0 |
| 1978 | 94 | 0 |
| 1979 | 63 | 0 |
| 1980 | 81 | 0 |
| 1981 | 88 | 0 |
| 1982 | 96 | 0 |
| 1983 | 73 | 0 |
| 1984 | 93 | 0 |
| 1985 | 88 | 0 |
| 1986 | 92 | 0 |
| 1987 | 116 | 0 |
| 1988 | 119 | 0 |
| 1989 | 145 | 0 |
| 1990 | 112 | 0 |
| 1991 | 154 | 0 |
| 1992 | 146 | 0 |
| 1993 | 153 | 0 |
| 1994 | 145 | 0 |
| 1995 | 143 | 0 |
| 1996 | 133 | 0 |
| 1997 | 134 | 0 |
| 1998 | 157 | 0 |
| 1999 | 171 | 0 |
| 2000 | 172 | 0 |
| 2001 | 138 | 30 |
| 2002 | 132 | 114 |
| 2003 | 123 | 137 |
| 2004 | 133 | 165 |
| 2005 | 108 | 162 |
| 2006 | 123 | 195 |
| 2007 | 112 | 173 |
| 2008 | 86 | 194 |
| 2009 | 117 | 188 |
| 2010 | 128 | 234 |
| 2011 | 138 | 229 |
| 2012 | 156 | 238 |
| 2013 | 170 | 302 |
| 2014 | 188 | 356 |
| 2015 | 284 | 346 |
| 2016 | 296 | 396 |
| 2017 | 341 | 358 |
| 2018 | 315 | 441 |
| 2019 | 394 | 437 |
| 2020 | 392 | 450 |
| 2021 | 380 | 390 |
| 2022 | 342 | 404 |
| 2023 | 368 | 354 |
| 2024 | 327 | 325 |
| 2025 | 280 | 308 |
| 2026 | 187 | 196 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16L 55/16Devices for covering leaks in pipes or hoses2,572
- F16L 55/10Means for stopping flow in pipes or hoses2,370
- F16L 55/26Pigs or moles, i.e. devices movable in a pipe or conduit with1,362
- F16L 55/02Energy absorbers1,075
- F16L 55/04Devices damping pulsations or vibrations in fluids805
- F16L 55/18Appliances for use in repairing pipes801
- F16L 55/07Arrangement or mounting of devices466
- F16L 55/24Preventing accumulation of dirt or other matter in pipes177
All 10 subgroupsShow fewer
Recent patents
- Stainless-steel braided pipe assembly6 Oct 2026US 12,753,862 B2Taizhou Kloe Dafeng Plumbing Co., Ltd.
- Method and tool for inspecting the condition of the internal surface of pipes6 Oct 2026US 12,753,874 B2Petroleo Brasileiro S.A. - Petrobras
- Retrofit vortex-induced-vibration (VIV) suppression device29 Sep 2026US 12,747,640 B2Oceaneering International, Inc.
- Annulus connection29 Sep 2026US 12,747,812 B2Baker Hughes Energy Technology UK Limited
- Clamp assemblies for clamping tubing and controlling fluid flow29 Sep 2026US 12,747,819 B2Corning Incorporated
- Frame for trenchless pipe replacement system and method1 Oct 2026US 2026/0298370 A1TT Technologies, Inc.
- Bladder surge suppressor1 Oct 2026US 2026/0298389 A1Young Engineering & Manufacturing, Inc.
- Plugging head equalizer valve1 Oct 2026US 2026/0298390 A1Saudi Arabian Oil Company
- HVAC Cap Assembly1 Oct 2026US 2026/0298391 A1
- Projection member, piping member, and piping system24 Sep 2026US 2026/0287108 A1Panasonic Intellectual Property Management Co., Ltd.
Most cited
By later US patents
- System for reducing vibrations in a pressure pumping fleet247US 10,119,381 B2U.S. Well Services, LLC · 2018
- Method for lining a casing225US 5,454,419 APolybore, Inc. · 1995
- Detaching tool for a tube for medical treatment212US 5,817,116 APiolax, Inc. · 1998
- Method and apparatus for replacing buried pipe209US 4,507,019 AExpand-A-Line, Incorporated · 1985
- Apparatus for and method of controlling the opening and closing of channel for liquid207US 4,989,626 AHitachi, Ltd. · 1991