F16L 55/18
Appliances for use in repairing pipes
Official title: Appliances for use in repairing pipes (F16L55/10 takes precedence)
F16L55/18 (Appliances for use in repairing pipes) appears on 801 US grants and 747 published applications in this corpus.
Search patents in F16L- Granted patents
- 801
- Published applications
- 747
- Assignees
- 381
- Inventors
- 1,233
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 8 | 0 |
| 1985 | 6 | 0 |
| 1986 | 9 | 0 |
| 1987 | 7 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 10 | 0 |
| 1992 | 10 | 0 |
| 1993 | 14 | 0 |
| 1994 | 10 | 0 |
| 1995 | 8 | 0 |
| 1996 | 7 | 0 |
| 1997 | 9 | 0 |
| 1998 | 22 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 7 | 0 |
| 2002 | 9 | 8 |
| 2003 | 4 | 5 |
| 2004 | 4 | 7 |
| 2005 | 8 | 5 |
| 2006 | 5 | 10 |
| 2007 | 9 | 8 |
| 2008 | 1 | 8 |
| 2009 | 5 | 12 |
| 2010 | 6 | 17 |
| 2011 | 8 | 24 |
| 2012 | 18 | 19 |
| 2013 | 18 | 39 |
| 2014 | 30 | 43 |
| 2015 | 24 | 30 |
| 2016 | 38 | 42 |
| 2017 | 37 | 55 |
| 2018 | 38 | 51 |
| 2019 | 66 | 72 |
| 2020 | 45 | 72 |
| 2021 | 62 | 48 |
| 2022 | 45 | 48 |
| 2023 | 48 | 40 |
| 2024 | 38 | 33 |
| 2025 | 38 | 32 |
| 2026 | 21 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Modular underwater pipeline inspection device8 Sep 2026US 12,728,970 B2The Hong Kong University of Science and Technology
- Stent springs for repairing pipes8 Sep 2026US 12,729,799 B2Mueller International, LLC
- Jointed pipe splitter with pneumatic hammer1 Sep 2026US 12,723,697 B2TT Technologies, Inc.
- Device, system and method for curing a tube liner18 Aug 2026US 12,709,045 B2Per Aarsleff A/S
- Universal pipe repair system28 Jul 2026US 12,692,967 B1
- Pipe renovation filtration system20 Aug 2026US 2026/0243381 A1Pipe Lining Enterprises, Inc.
- Pipe replacement drum device and method6 Aug 2026US 2026/0227004 A1TT Technologies, Inc.
- Device, system and method for locating and repairing leaks in pipes6 Aug 2026US 2026/0227021 A1South East Water Corporation
- Bypassing a portion of a pipeline30 Jul 2026US 2026/0218835 A1Saudi Arabian Oil Company
- Additive manufacture system9 Jul 2026US 2026/0192520 A1Kongsberg Ferrotech AS
Most cited
By later US patents
- Internal sleeve with a plurality of lands and teeth125US 5,667,252 AFramatome Technologies, Inc. · 1997
- Assembly for repairing a damaged pipe120US 4,793,382 ARaychem Corporation · 1988
- Hydraulic expander assembly and control system for sleeving heat exchanger tubes118US 5,606,792 AB&W Nuclear Technologies, Inc. · 1997
- Pipe repair bypass system106US 4,508,129 A1985
- Apparatus and method for improving the integrity of coupling sections in high performance tubing and casing105US 4,872,253 A1989