F16L 15/002
With more than one threaded section
Official title: {with more than one threaded section}
F16L15/002 (With more than one threaded section) appears on 115 US grants and 114 published applications in this corpus.
Search patents in F16L- Granted patents
- 115
- Published applications
- 114
- Assignees
- 49
- Inventors
- 179
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 5 |
| 2005 | 2 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 2 | 1 |
| 2010 | 3 | 2 |
| 2011 | 1 | 3 |
| 2012 | 3 | 6 |
| 2013 | 3 | 2 |
| 2014 | 1 | 3 |
| 2015 | 3 | 5 |
| 2016 | 0 | 5 |
| 2017 | 4 | 7 |
| 2018 | 7 | 8 |
| 2019 | 6 | 9 |
| 2020 | 7 | 9 |
| 2021 | 9 | 7 |
| 2022 | 8 | 20 |
| 2023 | 15 | 7 |
| 2024 | 13 | 3 |
| 2025 | 6 | 4 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High performance shoulder ring for pipe and other tubular goods in the oil and gas industry17 Mar 2026US 12,578,040 B2
- Coupled connection for tight clearance casing strings in oil and gas wells9 Dec 2025US 12,492,761 B2GB Connections LLC
- High torque threaded connections with external upset and multiple seals12 Aug 2025US 12,385,326 B2Saudi Arabian Oil Company
- Self-locking threaded connection partially in non-locking engagement17 Jun 2025US 12,331,851 B2Nippon Steel Corporation
- Threaded connection for pipe3 Jun 2025US 12,320,206 B2Nippon Steel Corporation
- Well pipe having electrical conductor with improved electrical contacts1 Oct 2026US 2026/0298379 A1
- Coupled Connection for Tight Clearance Casing Strings in Oil and Gas Wells19 Feb 2026US 2026/0049676 A1GB Connections LLC
- Asymmetric wedge thread tubular connection optimized for pressure and torque control19 Feb 2026US 2026/0049677 A1Multi Helix Consulting Corp. Inc.
- Coupled Connection for Drilling-With-Casing Operations and Tight Clearance Casing Strings in Oil and Gas Wells25 Dec 2025US 2025/0389161 A1GB Connections LLC
- Curvilinear sealing system21 Aug 2025US 2025/0263987 A1Hydril Company
Most cited
By later US patents
- Threaded pipe connection having wedge threads153US 4,703,954 AHydril Company · 1987
- Tubular connection132US 3,989,284 AHydril Company · 1976
- Tubular connection69US 4,629,224 AHydril Company · 1986
- Integral joint for the connection of two pipes49US 6,347,814 B1ENI S. p. A. · 2002
- Threaded joint for tubes40US 5,687,999 ASumitomo Metal Industries, Ltd. · 1997