F16L 47/02
Welded joints
Official title: Welded joints; Adhesive joints
F16L47/02 (Welded joints) appears on 575 US grants and 506 published applications in this corpus.
Search patents in F16L- Granted patents
- 575
- Published applications
- 506
- Assignees
- 389
- Inventors
- 1,115
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 8 | 0 |
| 1978 | 9 | 0 |
| 1979 | 7 | 0 |
| 1980 | 6 | 0 |
| 1981 | 9 | 0 |
| 1982 | 6 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 8 | 0 |
| 1986 | 5 | 0 |
| 1987 | 13 | 0 |
| 1988 | 6 | 0 |
| 1989 | 10 | 0 |
| 1990 | 15 | 0 |
| 1991 | 4 | 0 |
| 1992 | 16 | 0 |
| 1993 | 11 | 0 |
| 1994 | 16 | 0 |
| 1995 | 10 | 0 |
| 1996 | 9 | 0 |
| 1997 | 13 | 0 |
| 1998 | 9 | 0 |
| 1999 | 10 | 0 |
| 2000 | 10 | 0 |
| 2001 | 12 | 1 |
| 2002 | 14 | 8 |
| 2003 | 6 | 15 |
| 2004 | 6 | 12 |
| 2005 | 9 | 12 |
| 2006 | 7 | 16 |
| 2007 | 6 | 15 |
| 2008 | 3 | 14 |
| 2009 | 5 | 14 |
| 2010 | 8 | 23 |
| 2011 | 6 | 14 |
| 2012 | 8 | 24 |
| 2013 | 16 | 29 |
| 2014 | 13 | 17 |
| 2015 | 8 | 22 |
| 2016 | 19 | 31 |
| 2017 | 16 | 27 |
| 2018 | 17 | 28 |
| 2019 | 27 | 30 |
| 2020 | 27 | 14 |
| 2021 | 13 | 22 |
| 2022 | 24 | 34 |
| 2023 | 20 | 21 |
| 2024 | 27 | 28 |
| 2025 | 20 | 17 |
| 2026 | 9 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Double containment fittings with fusion coils1 Sep 2026US 12,723,693 B1K.D.W. Company Limited
- Corrosion-free welding connection for reinforced thermoplastic pipes (RTP)18 Aug 2026US 12,710,118 B1Saudi Arabian Oil Company
- Method and apparatus for reinforcing piping and installing a pipe adapter30 Jun 2026US 12,669,208 B2TruComp Pipe LLC
- Monitoring of lined pipeline31 Mar 2026US 12,590,665 B2Pioneer Lining Technology Limited
- Connection arrangement device and method for fluid line3 Mar 2026US 12,565,948 B2TI Group Automotive Systems, L.L.C.
- Method of coupling or repairing pipes27 Aug 2026US 2026/0251254 A1Pinweld Limited
- Corrosion-free welding connection for reinforced thermoplastic pipes (rtp)20 Aug 2026US 2026/0243375 A1Saudi Arabian Oil Company
- Methods and systems for connecting pipes6 Aug 2026US 2026/0227011 A1Saudi Arabian Oil Company
- Adaptor with relief gates6 Aug 2026US 2026/0227013 A1Cooper-Standard Automotive Inc.
- Arrangement with a connecting piece fastened to a hose23 Jul 2026US 2026/0210467 A1Hc-Kunststoffwerk RüLzheim GmbH
Most cited
By later US patents
- Pipe fittings108US 6,406,063 B1Fina Research, S. A. · 2002
- Pipe coupling89US 4,690,434 A1987
- Environmentally safe underground piping system86US 5,297,896 AEnviron Products, Inc. · 1994
- Method and apparatus for joining materials85US 4,417,753 ABaxter Travenol Laboratories, Inc. · 1983
- Tongue and groove snap-fit pipe coupling70US 5,007,666 AC & L Development Inc. · 1991