F16L 9/06
Corrugated pipes
F16L9/06 (Corrugated pipes) appears on 73 US grants and 68 published applications in this corpus.
Search patents in F16L- Granted patents
- 73
- Published applications
- 68
- Assignees
- 44
- Inventors
- 95
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 2 |
| 2003 | 2 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 1 |
| 2006 | 0 | 5 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 2 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 1 | 7 |
| 2013 | 3 | 2 |
| 2014 | 2 | 4 |
| 2015 | 3 | 2 |
| 2016 | 2 | 3 |
| 2017 | 4 | 4 |
| 2018 | 5 | 3 |
| 2019 | 2 | 6 |
| 2020 | 6 | 10 |
| 2021 | 4 | 4 |
| 2022 | 6 | 1 |
| 2023 | 1 | 2 |
| 2024 | 5 | 2 |
| 2025 | 1 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Universal coupling2 Jun 2026US 12,644,545 B2Advanced Drainage Systems, Inc.
- Pipe with an outer wrap25 Mar 2025US 12,259,084 B2Advanced Drainage Systems, Inc.
- Universal coupling12 Nov 2024US 12,140,252 B2Advanced Drainage Systems, Inc.
- Dielectric conduit assemblies and methods of making thereof15 Oct 2024US 12,119,521 B2Bloom Energy Corporation
- Energy dissipative tubes, arc-trapping bushings, and kits, systems, and methods incorporating the same7 May 2024US 11,976,752 B2Titeflex Corporation
- Pipe with an outer wrap12 Jun 2025US 2025/0189061 A1Advanced Drainage Systems, Inc.
- Universal coupling30 Jan 2025US 2025/0035241 A1Advanced Drainage Systems, Inc.
- Dielectric conduit assemblies and methods of making thereof9 Jan 2025US 2025/0015320 A1Bloom Energy Corporation
- Universal coupling22 Aug 2024US 2024/0280196 A1Advanced Drainage Systems, Inc.
- Pipe with an outer wrap16 May 2024US 2024/0159330 A1Advanced Drainage Systems, Inc.
Most cited
By later US patents
- Plastic pipe comprising an outer corrugated pipe and a smooth inner wall108US 4,754,781 AWavin B. V. · 1988
- Double wall helical pipe and strip configuration for forming same27US 4,129,152 APacific Roller Die Co., Inc. · 1978
- Corrugated pipe for deepwater applications27US 4,261,671 AShell Oil Company · 1981
- Capillary fluted tube mass and heat transfer devices and methods of use26US 5,617,737 AThe Ohio State University Research Foundation · 1997
- Corrugated flexible metal piping assembly22US 5,538,294 ATru-Flex Metal Hose Corporation · 1996