F16L 58/181
For non-disconnectable pipe joints
Official title: {for non-disconnectable pipe joints}
F16L58/181 (For non-disconnectable pipe joints) appears on 218 US grants and 207 published applications in this corpus.
Search patents in F16L- Granted patents
- 218
- Published applications
- 207
- Assignees
- 134
- Inventors
- 428
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 1 |
| 2002 | 3 | 2 |
| 2003 | 0 | 3 |
| 2004 | 1 | 5 |
| 2005 | 2 | 2 |
| 2006 | 3 | 1 |
| 2007 | 2 | 10 |
| 2008 | 1 | 4 |
| 2009 | 3 | 1 |
| 2010 | 1 | 10 |
| 2011 | 2 | 8 |
| 2012 | 2 | 8 |
| 2013 | 5 | 11 |
| 2014 | 7 | 17 |
| 2015 | 8 | 13 |
| 2016 | 7 | 25 |
| 2017 | 8 | 12 |
| 2018 | 15 | 10 |
| 2019 | 12 | 13 |
| 2020 | 17 | 11 |
| 2021 | 11 | 10 |
| 2022 | 10 | 10 |
| 2023 | 10 | 5 |
| 2024 | 9 | 8 |
| 2025 | 4 | 2 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Corrosion-free welding connection for reinforced thermoplastic pipes (RTP)18 Aug 2026US 12,710,118 B1Saudi Arabian Oil Company
- Electrolytic coating for aluminum components with weld joints7 Apr 2026US 12,595,873 B2Hamilton Sundstrand Corporation
- Monitoring of lined pipeline31 Mar 2026US 12,590,665 B2Pioneer Lining Technology Limited
- Composite pipe formed by combining a main portion and a short pipe portion, and connection structure of the same13 May 2025US 12,297,939 B2
- Sealed pipeline connection and raised pipeline sleeve, and method of making same8 Apr 2025US 12,270,492 B2Lps IP, LLC
- 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
- Compression member for a fluid transport pipe provided with an internal protective lining18 Jun 2026US 2026/0168612 A1Saipem S.P.A.
- Metal pipes with anticorrosive polyolefin covering layer4 Jun 2026US 2026/0153184 A1Winn & Coales International Limited
- Pipeline Sealing Assembly with Pipeline Sleeve and Pipeline Terminals and Method of Making Same5 Mar 2026US 2026/0063225 A1Lps IP, LLC
Most cited
By later US patents
- Connector for the use of pipes147US 3,997,193 AKubota Corporation · 1976
- Tubular article118US 5,070,597 ARaychem Corporation · 1991
- Apparatus for internal pipe protection88US 4,355,664 ARaychem Corporation · 1982
- Coated recoverable articles74US 4,732,412 ARaychem Corporation · 1988
- Coupling for lined pipe50US 4,277,091 A1981