F16L 37/12
Using hooks, pawls, or other movable or insertable locking members
Official title: using hooks, pawls, or other movable or insertable locking members (F16L37/084 takes precedence)
F16L37/12 (Using hooks, pawls, or other movable or insertable locking members) appears on 1,657 US grants and 1,369 published applications in this corpus.
Search patents in F16L- Granted patents
- 1,657
- Published applications
- 1,369
- Assignees
- 896
- Inventors
- 2,690
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 13 | 0 |
| 1978 | 22 | 0 |
| 1979 | 13 | 0 |
| 1980 | 20 | 0 |
| 1981 | 15 | 0 |
| 1982 | 13 | 0 |
| 1983 | 15 | 0 |
| 1984 | 12 | 0 |
| 1985 | 26 | 0 |
| 1986 | 22 | 0 |
| 1987 | 24 | 0 |
| 1988 | 23 | 0 |
| 1989 | 20 | 0 |
| 1990 | 20 | 0 |
| 1991 | 19 | 0 |
| 1992 | 29 | 0 |
| 1993 | 17 | 0 |
| 1994 | 26 | 0 |
| 1995 | 18 | 0 |
| 1996 | 20 | 0 |
| 1997 | 17 | 0 |
| 1998 | 30 | 0 |
| 1999 | 37 | 0 |
| 2000 | 39 | 0 |
| 2001 | 27 | 10 |
| 2002 | 31 | 22 |
| 2003 | 26 | 30 |
| 2004 | 28 | 32 |
| 2005 | 23 | 37 |
| 2006 | 25 | 30 |
| 2007 | 11 | 27 |
| 2008 | 22 | 45 |
| 2009 | 20 | 36 |
| 2010 | 25 | 51 |
| 2011 | 23 | 40 |
| 2012 | 39 | 42 |
| 2013 | 28 | 54 |
| 2014 | 28 | 66 |
| 2015 | 37 | 58 |
| 2016 | 43 | 60 |
| 2017 | 67 | 65 |
| 2018 | 61 | 73 |
| 2019 | 67 | 85 |
| 2020 | 69 | 74 |
| 2021 | 65 | 79 |
| 2022 | 79 | 68 |
| 2023 | 72 | 73 |
| 2024 | 92 | 82 |
| 2025 | 68 | 66 |
| 2026 | 57 | 64 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16L 37/14Joints secured by inserting between mating surfaces an element580
- F16L 37/1225Using a retaining member the extremities of which211
- F16L 37/138Using an axially movable sleeve211
- F16L 37/18Joints tightened by eccentrics or rotatable cams198
- F16L 37/133Using flexible hooks139
- F16L 37/127Using hooks hinged about an axis97
- F16L 37/20Joints tightened by toggle-action levers88
- F16L 37/1215Using hooks provided with a screw-thread adapted to engage and mesh with64
All 15 subgroupsShow fewer
- F16L 37/1205Using hooks hinged about an axis placed behind a flange and which56
- F16L 37/122Using hooks tightened by a wedge section40
- F16L 37/121Using freely rocking hooks29
- F16L 37/123Using a retaining member in the form of a wedge19
- F16L 37/1235The connection taking place from inside the pipes17
- F16L 37/16Joints tightened by the action of wedge-shaped hinged hooks10
- F16L 37/124Using bolts, fixed to a flange, which are able to tilt in6
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Most cited
By later US patents
- Plug-type connection arrangement for a hose and a pipe1,211US 7,562,910 B2Norma Germany GmbH · 2009
- Coupling part for a fluid coupling device1,207US 7,021,669 B1Gardena Manufacturing GmbH · 2006
- Coupling for medical apparatus tubes206US 4,405,163 AIntermedicat GmbH · 1983
- Connection system for fluid lines having telescoping connecting elements, in particular for respirators or anesthetic units184US 4,557,261 A1985
- Positive locking electrical connector178US 4,017,139 ASealectro Corporation · 1977