F16L 47/00
Connecting arrangements or other fittings specially adapted to be made of plastics
Official title: Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
F16L47/00 (Connecting arrangements or other fittings specially adapted to be made of plastics) appears on 1,812 US grants and 1,328 published applications in this corpus.
Search patents in F16L- Granted patents
- 1,812
- Published applications
- 1,328
- Assignees
- 975
- Inventors
- 3,014
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 43 | 0 |
| 1977 | 49 | 0 |
| 1978 | 38 | 0 |
| 1979 | 32 | 0 |
| 1980 | 36 | 0 |
| 1981 | 46 | 0 |
| 1982 | 38 | 0 |
| 1983 | 25 | 0 |
| 1984 | 27 | 0 |
| 1985 | 24 | 0 |
| 1986 | 32 | 0 |
| 1987 | 38 | 0 |
| 1988 | 24 | 0 |
| 1989 | 31 | 0 |
| 1990 | 39 | 0 |
| 1991 | 23 | 0 |
| 1992 | 40 | 0 |
| 1993 | 28 | 0 |
| 1994 | 46 | 0 |
| 1995 | 37 | 0 |
| 1996 | 34 | 0 |
| 1997 | 34 | 0 |
| 1998 | 28 | 0 |
| 1999 | 33 | 0 |
| 2000 | 26 | 0 |
| 2001 | 32 | 8 |
| 2002 | 36 | 28 |
| 2003 | 22 | 31 |
| 2004 | 17 | 38 |
| 2005 | 28 | 48 |
| 2006 | 26 | 49 |
| 2007 | 22 | 43 |
| 2008 | 18 | 51 |
| 2009 | 26 | 57 |
| 2010 | 33 | 59 |
| 2011 | 23 | 48 |
| 2012 | 35 | 61 |
| 2013 | 30 | 65 |
| 2014 | 41 | 49 |
| 2015 | 31 | 46 |
| 2016 | 36 | 61 |
| 2017 | 44 | 67 |
| 2018 | 39 | 66 |
| 2019 | 57 | 69 |
| 2020 | 67 | 53 |
| 2021 | 34 | 53 |
| 2022 | 57 | 70 |
| 2023 | 47 | 54 |
| 2024 | 65 | 54 |
| 2025 | 60 | 52 |
| 2026 | 35 | 48 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16L 47/02Welded joints575
- F16L 47/26Connecting arrangements or other fittings specially adapted to be made of plastics377
- F16L 47/20Based principally on specific properties of plastics375
- F16L 47/06Connecting arrangements or other fittings specially adapted to be made of plastics281
- F16L 47/04Connecting arrangements or other fittings specially adapted to be made of plastics208
- F16L 47/14Flanged joints119
- F16L 47/16Screw-threaded joints70
- F16L 47/18Adjustable joints35
All 9 subgroupsShow fewer
Recent patents
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- Fitting collar and tube-fitting assemblies incorporating fitting collars8 Oct 2026US 2026/0309265 A1Avtechtyee Inc.
- Fasteners for a manifold1 Oct 2026US 2026/0298388 A1Advanced Drainage Systems, Inc.
- Plumbing connector24 Sep 2026US 2026/0287102 A1Reliance Worldwide Corporation (UK) Limited
- Method of coupling or repairing pipes27 Aug 2026US 2026/0251254 A1Pinweld Limited
- Corrosion-free welding connection for reinforced thermoplastic pipes (rtp)20 Aug 2026US 2026/0243375 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Rotatable connecting device for I.V. administration set274US 4,296,949 AAbbott Laboratories · 1981
- Heat-recoverable coupling assembly215US 4,650,228 ARaychem Corporation · 1987
- Composite drill pipe201US 5,332,049 ABrunswick Corporation · 1994
- Universal plastic plumbing joint161US 4,620,330 APlastic Oddities, Inc. · 1986
- Connecting arrangement with a threaded sleeve153US 4,682,797 AFriedrichsfeld GmbH Keramik- und Kunststoffwerke · 1987