F16L 1/20
Accessories therefor
Official title: Accessories therefor, e.g. floats or weights
F16L1/20 (Accessories therefor) appears on 850 US grants and 778 published applications in this corpus.
Search patents in F16L- Granted patents
- 850
- Published applications
- 778
- Assignees
- 408
- Inventors
- 1,427
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 13 | 0 |
| 1978 | 14 | 0 |
| 1979 | 10 | 0 |
| 1980 | 9 | 0 |
| 1981 | 15 | 0 |
| 1982 | 14 | 0 |
| 1983 | 3 | 0 |
| 1984 | 8 | 0 |
| 1985 | 6 | 0 |
| 1986 | 8 | 0 |
| 1987 | 10 | 0 |
| 1988 | 8 | 0 |
| 1989 | 5 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 8 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 8 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 11 | 3 |
| 2002 | 16 | 10 |
| 2003 | 11 | 13 |
| 2004 | 17 | 6 |
| 2005 | 3 | 17 |
| 2006 | 10 | 18 |
| 2007 | 8 | 21 |
| 2008 | 6 | 25 |
| 2009 | 11 | 26 |
| 2010 | 20 | 28 |
| 2011 | 19 | 42 |
| 2012 | 18 | 30 |
| 2013 | 23 | 50 |
| 2014 | 40 | 58 |
| 2015 | 49 | 58 |
| 2016 | 41 | 60 |
| 2017 | 56 | 36 |
| 2018 | 35 | 43 |
| 2019 | 56 | 37 |
| 2020 | 43 | 36 |
| 2021 | 24 | 30 |
| 2022 | 30 | 36 |
| 2023 | 27 | 32 |
| 2024 | 29 | 28 |
| 2025 | 25 | 24 |
| 2026 | 14 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hose weight22 Sep 2026US 12,742,511 B2Luloh LLC
- Floating underwater pipelines8 Sep 2026US 12,729,782 B2
- Hydraulic actuation system for diverless bell mouth18 Aug 2026US 12,710,113 B2Petroleo Brasileiro S.A. - Petrobras
- Stackable float assembly14 Jul 2026US 12,680,397 B2Eddy Pump Corporation
- Device and method for erecting submarine pipelines in marine engineering23 Jun 2026US 12,663,099 B2Jiangsu University of Science and Technology
- Subsea conduit deployment device and process for using same10 Sep 2026US 2026/0266398 A1Koil Energy Solutions, Inc.
- Improving fatigue resistance of steel catenary risers3 Sep 2026US 2026/0258884 A1Subsea 7 do Brasil Servicos Ltda
- Installation of subsea risers16 Jul 2026US 2026/0201755 A1Subsea 7 Norway AS
- Method and system for preparing subsea equipment for use with diverless installation means2 Jul 2026US 2026/0185634 A1Petroleo Brasileiro S.A. - Petrobras
- Subsea fluid transfer system and process for using the same25 Jun 2026US 2026/0176938 A1Koil Energy Solutions, Inc.
Most cited
By later US patents
- Marine riser57US 6,401,825 B1Petroleum Equipment Supply Engineering Company Limited · 2002
- Marine riser buoyancy assembly54US 4,477,207 A1984
- Apparatus for transferring fluid between subsea floor and the surface53US 4,906,137 ACoflexip · 1990
- Apparatus for near vertical laying of pipeline50US 5,421,675 AMcDermott International, Inc. · 1995
- Submarine pipeline laying vessel49US 3,982,402 ASanta Fe International Corporation · 1976