E02D 29/125
Characterised by the lining of the shaft
Official title: {characterised by the lining of the shaft}
E02D29/125 (Characterised by the lining of the shaft) appears on 66 US grants and 44 published applications in this corpus.
Search patents in E02D- Granted patents
- 66
- Published applications
- 44
- Assignees
- 32
- Inventors
- 67
- Latest grant
- 22 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 3 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 3 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 1 | 3 |
| 2014 | 3 | 3 |
| 2015 | 2 | 4 |
| 2016 | 3 | 2 |
| 2017 | 3 | 6 |
| 2018 | 3 | 1 |
| 2019 | 6 | 3 |
| 2020 | 4 | 3 |
| 2021 | 5 | 2 |
| 2022 | 1 | 1 |
| 2023 | 3 | 0 |
| 2024 | 0 | 1 |
| 2025 | 2 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- Lining tube for restoring defective sewer shafts including a berm and a channel, and method for producing same, and method for lining a defective sewer shaft22 Apr 2025US 12,281,742 B2Brandenburger Liner GmbH & Co. KG
- System and method for extending the height of a manhole11 Feb 2025US 12,221,760 B2Hydro-Klean, LLC
- Riser sections and risers made therefrom22 Aug 2023US 11,732,433 B1
- Concrete sanitary sewer pipes and manholes featuring a protective plastic liner27 Jun 2023US 11,686,419 B2
- Manhole rehabilitation system16 May 2023US 11,649,603 B2Geneva Pipe and Precast Company
- Manhole construction4 Sep 2025US 2025/0277349 A1Advanced Drainage Systems, Inc.
- Manhole construction14 Aug 2025US 2025/0257545 A1Advanced Drainage Systems, Inc.
- Lining tube for restoring defective sewer shafts including a berm and a channel, and method for producing same, and method for lining a defective sewer shaft30 Jan 2025US 2025/0035247 A1Brandenburger Liner GmbH & Co. KG
- System and method for extending the height of a manhole11 Jan 2024US 2024/0011237 A1Hydro-Klean, LLC
- Concrete sanitary sewer pipes and manholes featuring a protective plastic liner5 May 2022US 2022/0136640 A1
Most cited
By later US patents
- Method and apparatus for lining manhole assemblies and the like41US 4,751,799 AA-LOK Product, Inc. · 1988
- Method of rehabilitating manholes by custom lining/relining37US 5,002,438 A1991
- Cast-in-place manhole liner method35US 5,032,197 AAction Products Marketing Corporation · 1991
- Method and apparatus for lining manhole assemblies and the like35US 5,081,802 APoly-Tec Products, Inc. · 1992
- System and method for rehabilitating a manhole, and manhole rehabilitated thereby32US 5,265,981 A1993