E03F 7/00
Sewers: other installations or implements for operating sewer systems
Official title: Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
E03F7/00 (Sewers: other installations or implements for operating sewer systems) appears on 593 US grants and 480 published applications in this corpus.
Search patents in E03F- Granted patents
- 593
- Published applications
- 480
- Assignees
- 310
- Inventors
- 1,040
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 9 | 0 |
| 1981 | 4 | 0 |
| 1982 | 6 | 0 |
| 1983 | 8 | 0 |
| 1984 | 8 | 0 |
| 1985 | 9 | 0 |
| 1986 | 6 | 0 |
| 1987 | 8 | 0 |
| 1988 | 2 | 0 |
| 1989 | 10 | 0 |
| 1990 | 15 | 0 |
| 1991 | 20 | 0 |
| 1992 | 12 | 0 |
| 1993 | 6 | 0 |
| 1994 | 7 | 0 |
| 1995 | 8 | 0 |
| 1996 | 17 | 0 |
| 1997 | 8 | 0 |
| 1998 | 11 | 0 |
| 1999 | 9 | 0 |
| 2000 | 16 | 0 |
| 2001 | 8 | 2 |
| 2002 | 6 | 5 |
| 2003 | 6 | 5 |
| 2004 | 7 | 9 |
| 2005 | 6 | 14 |
| 2006 | 10 | 6 |
| 2007 | 2 | 14 |
| 2008 | 8 | 8 |
| 2009 | 6 | 15 |
| 2010 | 6 | 13 |
| 2011 | 9 | 12 |
| 2012 | 10 | 14 |
| 2013 | 13 | 19 |
| 2014 | 7 | 22 |
| 2015 | 10 | 19 |
| 2016 | 24 | 28 |
| 2017 | 14 | 25 |
| 2018 | 39 | 38 |
| 2019 | 25 | 22 |
| 2020 | 31 | 28 |
| 2021 | 25 | 39 |
| 2022 | 20 | 29 |
| 2023 | 31 | 31 |
| 2024 | 28 | 19 |
| 2025 | 20 | 26 |
| 2026 | 12 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Spring assemblies with variable flexibility for use with push-cables and pipe inspection systems22 Sep 2026US 12,743,014 B2Seescan, Inc.
- Sewer expansion plug1 Sep 2026US 12,723,395 B1Camco Manufacturing, Inc.
- Systems to monitor and detect status changes of fluid flow devices25 Aug 2026US 12,716,213 B2State Farm Mutual Automobile Insurance Company
- Machine for processing liquid or semi-liquid food products11 Aug 2026US 12,702,144 B2Ali Group S.R.L.—Carpigiani
- Material regulating trap for sewer connection4 Aug 2026US 12,698,624 B2
- Systems and methods for iot sewer management8 Oct 2026US 2026/0311584 A1Ardurra Group, Inc.
- Illumination Apparatus for the Cover of a Sewage or Sump Pump Basin1 Oct 2026US 2026/0298459 A1
- Drainage network sedimentation management methods, systems, and medium based on large internet of things models3 Sep 2026US 2026/0258649 A1Chengdu Qinchuan Iot Technology Co., Ltd.
- Drain line alert device27 Aug 2026US 2026/0250938 A1
- Blower system and method for operating a cleaning vehicle having a blower system6 Aug 2026US 2026/0225138 A1Omega Liquid Waste Solutions Inc.
Most cited
By later US patents
- Interactive dynamic real-time management system224US 4,843,575 A1989
- Method and apparatus for organizing storing and retrieving information to administer a sewer system204US 5,812,962 AWhite Oak Borough Authority · 1998
- Autonomous mobile robot system for sensor-based and map-based navigation in pipe networks186US 6,108,597 AGMD-Forschungszentrum Informationstechnik GmbH · 2000
- Method and system for monitoring operating efficiency of pipeline system170US 4,584,654 AUltra Products Systems, Inc. · 1986
- Apparatus and method for receiving, draining and disposing of dredged material109US 4,975,205 ASubaqueous Services, Inc. · 1990