F16L 47/20
Based principally on specific properties of plastics
Official title: based principally on specific properties of plastics
F16L47/20 (Based principally on specific properties of plastics) appears on 375 US grants and 229 published applications in this corpus.
Search patents in F16L- Granted patents
- 375
- Published applications
- 229
- Assignees
- 248
- Inventors
- 682
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 4 | 0 |
| 1978 | 7 | 0 |
| 1979 | 7 | 0 |
| 1980 | 10 | 0 |
| 1981 | 15 | 0 |
| 1982 | 12 | 0 |
| 1983 | 13 | 0 |
| 1984 | 10 | 0 |
| 1985 | 8 | 0 |
| 1986 | 11 | 0 |
| 1987 | 13 | 0 |
| 1988 | 10 | 0 |
| 1989 | 9 | 0 |
| 1990 | 14 | 0 |
| 1991 | 8 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 8 | 0 |
| 1995 | 3 | 0 |
| 1996 | 12 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 9 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 4 |
| 2002 | 4 | 2 |
| 2003 | 5 | 5 |
| 2004 | 1 | 4 |
| 2005 | 5 | 11 |
| 2006 | 5 | 12 |
| 2007 | 5 | 11 |
| 2008 | 3 | 12 |
| 2009 | 5 | 10 |
| 2010 | 7 | 14 |
| 2011 | 6 | 6 |
| 2012 | 7 | 10 |
| 2013 | 4 | 12 |
| 2014 | 9 | 5 |
| 2015 | 4 | 14 |
| 2016 | 7 | 13 |
| 2017 | 7 | 8 |
| 2018 | 9 | 15 |
| 2019 | 5 | 9 |
| 2020 | 10 | 8 |
| 2021 | 8 | 8 |
| 2022 | 10 | 13 |
| 2023 | 11 | 10 |
| 2024 | 8 | 5 |
| 2025 | 9 | 7 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and apparatus for reinforcing piping and installing a pipe adapter30 Jun 2026US 12,669,208 B2TruComp Pipe LLC
- Thin-walled heat shrink tubing31 Mar 2026US 12,590,652 B2Zeus Co., Ltd.
- Clamping ring and method of forming the same30 Dec 2025US 12,508,776 B2Auray Managing, S.L.
- Adapter coupling2 Dec 2025US 12,486,929 B2Victaulic Company
- Aircraft fluid conduit comprising thermoplastic piping and connector21 Oct 2025US 12,447,669 B2Airbus Atlantic
- Thin-walled heat shrink tubing16 Jul 2026US 2026/0201982 A1Zeus Co., Ltd.
- Potted cavity fitting25 Dec 2025US 2025/0389362 A1Goodrich Corporation
- Plastic ducts with slip-on steel flange for thermal interfaces9 Oct 2025US 2025/0316728 A1GM Global Technology Operations LLC
- Method and apparatus to assemble a high purity liquid distribution system18 Sep 2025US 2025/0289190 A1Fit-Line, Inc.
- Vacuum adapter system and method21 Aug 2025US 2025/0264169 A1
Most cited
By later US patents
- 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
- Apparatus and method for coupling polymer conduits to metallic bodies128US 4,600,222 AWaterman Industries, Inc. · 1986
- Tubular article118US 5,070,597 ARaychem Corporation · 1991