F16L 13/0227
Having an inner ring
Official title: {having an inner ring}
F16L13/0227 (Having an inner ring) appears on 27 US grants and 25 published applications in this corpus.
Search patents in F16L- Granted patents
- 27
- Published applications
- 25
- Assignees
- 24
- Inventors
- 63
- Latest grant
- 13 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 3 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 3 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 3 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 2 | 2 |
| 2024 | 1 | 3 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Steam hose with internal liner for chemical cleaning25 Jun 2024US 12,018,774 B2Refined Technologies, Inc.
- Vibration absorption tubing and manufacturing method thereof13 Jun 2023US 11,674,620 B2Xinchang County Sitong Electrical Co., Ltd
- Apparatus and method for lined pipe welding7 Feb 2023US 11,572,967 B2Maxtube Limited
- Pipeline Sealing Assembly with Pipeline Sleeve and Pipeline Terminals and Method of Making Same5 Mar 2026US 2026/0063225 A1Lps IP, LLC
- Coiled tubing weld-on connector11 Apr 2024US 2024/0117908 A1National Oilwell Varco, L. P.
- Bimetallic protective sleeve for the weld seam of cpsc pipelines1 Feb 2024US 2024/0035609 A1
- Composite pipe formed by combining a main portion and a short pipe portion, and connection structure of the same4 Jan 2024US 2024/0003470 A1
- Sealed pipeline connection and raised pipeline sleeve, and method of making same28 Sep 2023US 2023/0304612 A1Lps IP, LLC
Most cited
By later US patents
- Cylindrical corrosion barrier for pipe connections41US 5,566,984 A1996
- Cylindrical corrosion barrier for pipe connections25US 5,547,228 A1996
- Partially consumable spacer chill rings and their use in welding pipe joints16US 4,611,830 A1986
- Alignment of tubular piles for joinder11US 4,547,096 AMcDermott International, Inc. · 1985
- Pipe connection11US 5,219,187 ATuboscope Inc. · 1993