F16L 15/001
Screw-threaded joints: with conical threads
Official title: {with conical threads}
F16L15/001 (Screw-threaded joints: with conical threads) appears on 788 US grants and 649 published applications in this corpus.
Search patents in F16L- Granted patents
- 788
- Published applications
- 649
- Assignees
- 298
- Inventors
- 1,072
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 7 | 0 |
| 1984 | 13 | 0 |
| 1985 | 14 | 0 |
| 1986 | 24 | 0 |
| 1987 | 22 | 0 |
| 1988 | 12 | 0 |
| 1989 | 15 | 0 |
| 1990 | 14 | 0 |
| 1991 | 11 | 0 |
| 1992 | 5 | 0 |
| 1993 | 10 | 0 |
| 1994 | 10 | 0 |
| 1995 | 15 | 0 |
| 1996 | 11 | 0 |
| 1997 | 6 | 0 |
| 1998 | 9 | 0 |
| 1999 | 7 | 0 |
| 2000 | 10 | 0 |
| 2001 | 13 | 2 |
| 2002 | 13 | 16 |
| 2003 | 20 | 36 |
| 2004 | 24 | 46 |
| 2005 | 19 | 22 |
| 2006 | 23 | 28 |
| 2007 | 7 | 31 |
| 2008 | 14 | 20 |
| 2009 | 21 | 11 |
| 2010 | 20 | 27 |
| 2011 | 18 | 22 |
| 2012 | 18 | 22 |
| 2013 | 11 | 21 |
| 2014 | 13 | 25 |
| 2015 | 21 | 28 |
| 2016 | 20 | 28 |
| 2017 | 32 | 22 |
| 2018 | 24 | 24 |
| 2019 | 32 | 28 |
| 2020 | 25 | 38 |
| 2021 | 25 | 29 |
| 2022 | 37 | 34 |
| 2023 | 36 | 31 |
| 2024 | 32 | 26 |
| 2025 | 30 | 19 |
| 2026 | 8 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Steel pipe joint structure and method for processing steel pipe1 Sep 2026US 12,723,684 B2Metal One Corporation
- Metal seal weld-on connector for conductor casing18 Aug 2026US 12,710,117 B2United Drilling Tools Ltd.
- Tubular component comprising a threaded connection element4 Aug 2026US 12,698,682 B2Vallourec Oil and Gas France
- High performance shoulder ring for pipe and other tubular goods in the oil and gas industry17 Mar 2026US 12,578,040 B2
- Agent for forming solid lubricating coating film, oil country tubular goods, and threaded joint for oil country tubular goods17 Feb 2026US 12,553,005 B2Jfe Steel Corporation
- Well pipe having electrical conductor with improved electrical contacts1 Oct 2026US 2026/0298379 A1
- Oil-well metal pipe27 Aug 2026US 2026/0251256 A1Nippon Steel Corporation
- Thread profile for threaded connection6 Aug 2026US 2026/0226801 A1Tenaris Connections Limited
- Threaded connection30 Jul 2026US 2026/0218574 A1Nippon Steel Corporation
- Oil-well metal pipe23 Jul 2026US 2026/0210478 A1
Most cited
By later US patents
- Downhole data transmission system288US 6,670,880 B1Novatek Engineering, Inc. · 2003
- Expandable joint connector281US 6,409,175 B1Grant Prideco, L.P. · 2002
- Plastic needleless valve housing for standard male luer locks272US 5,441,487 AMedex, Inc. · 1995
- Anti-reflux valve with environmental barrier246US 5,578,059 AMedex, Inc. · 1996
- Buttress thread form180US 5,092,635 ABaker Hughes Incorporated · 1992