E03F 3/00
Sewer pipe-line systems
E03F3/00 (Sewer pipe-line systems) appears on 682 US grants and 539 published applications in this corpus.
Search patents in E03F- Granted patents
- 682
- Published applications
- 539
- Assignees
- 349
- Inventors
- 977
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 6 | 0 |
| 1987 | 10 | 0 |
| 1988 | 8 | 0 |
| 1989 | 8 | 0 |
| 1990 | 9 | 0 |
| 1991 | 16 | 0 |
| 1992 | 12 | 0 |
| 1993 | 10 | 0 |
| 1994 | 17 | 0 |
| 1995 | 21 | 0 |
| 1996 | 21 | 0 |
| 1997 | 20 | 0 |
| 1998 | 22 | 0 |
| 1999 | 19 | 0 |
| 2000 | 17 | 0 |
| 2001 | 13 | 5 |
| 2002 | 7 | 5 |
| 2003 | 10 | 9 |
| 2004 | 8 | 25 |
| 2005 | 6 | 17 |
| 2006 | 16 | 12 |
| 2007 | 13 | 12 |
| 2008 | 9 | 14 |
| 2009 | 9 | 10 |
| 2010 | 8 | 13 |
| 2011 | 9 | 18 |
| 2012 | 11 | 21 |
| 2013 | 18 | 19 |
| 2014 | 20 | 33 |
| 2015 | 16 | 21 |
| 2016 | 22 | 37 |
| 2017 | 28 | 31 |
| 2018 | 26 | 30 |
| 2019 | 30 | 41 |
| 2020 | 31 | 33 |
| 2021 | 23 | 37 |
| 2022 | 34 | 29 |
| 2023 | 25 | 21 |
| 2024 | 19 | 18 |
| 2025 | 14 | 18 |
| 2026 | 10 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Device and method for repairing pipe with a repair assembly having a lighting assembly7 Jul 2026US 12,674,538 B2Perma-Liner Industries, LLC
- Flared end ramp with side tabs2 Jun 2026US 12,644,271 B2Advanced Drainage Systems, Inc.
- Support structure and method of forming a support structure19 May 2026US 12,631,013 B2HC Properties Inc.
- Drainage assembly having an end cap and ramp12 May 2026US 12,624,540 B2Advanced Drainage Systems, Inc.
- Lining tube for reconditioning of defective sewer pipes and method of producing and installing one14 Apr 2026US 12,601,166 B2Brandenburger Liner GmbH & Co. KG
- Device and Method for Repairing Pipe with a Repair Assembly Having a Lighting Assembly28 May 2026US 2026/0146699 A1Perma-Liner Industries, LLC
- Drainage apparatus with locking mechanism21 May 2026US 2026/0139466 A1Advanced Drainage Systems, Inc.
- Nesting universal inline surface drain30 Apr 2026US 2026/0117508 A1Advanced Drainage Systems, Inc.
- Buried p-trap and pipe lifting device and method9 Apr 2026US 2026/0098596 A1The Trout Group, Inc.
- Plumbing fitting and seat2 Apr 2026US 2026/0092666 A1
Most cited
By later US patents
- Water cutoff junction member for concrete products to be joined together198US 6,052,960 AYamax Corporation · 2000
- Method of lining a pipe194US 4,009,063 AInsituform (Pipes & Structures) Ltd. · 1977
- Chemical safety conduit or trench91US 4,940,359 AACO Polymer Products, Inc. · 1990
- Flexible tubular lining material84US 6,170,531 B2Karl Otto Braun KG · 2001
- Modular and componential trench drain system82US 5,066,165 A1991