F04B 49/025
By means of floats
Official title: by means of floats
F04B49/025 (By means of floats) appears on 131 US grants and 75 published applications in this corpus.
Search patents in F04B- Granted patents
- 131
- Published applications
- 75
- Assignees
- 70
- Inventors
- 206
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 4 |
| 2012 | 3 | 7 |
| 2013 | 5 | 3 |
| 2014 | 4 | 2 |
| 2015 | 4 | 2 |
| 2016 | 3 | 0 |
| 2017 | 1 | 3 |
| 2018 | 1 | 6 |
| 2019 | 6 | 12 |
| 2020 | 9 | 3 |
| 2021 | 7 | 6 |
| 2022 | 2 | 7 |
| 2023 | 8 | 3 |
| 2024 | 4 | 4 |
| 2025 | 3 | 1 |
| 2026 | 0 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device for supplying liquid at constant amount and method for controlling same9 Dec 2025US 12,493,305 B2Ningbo Richen Electrical Appliance Co., Ltd
- Continued power for grinder pumps based on elevated load7 Oct 2025US 12,434,981 B2Innovative Utility Solutions, LLC
- Modular condensate removal system, modules and corresponding installation and maintenance methods23 Sep 2025US 12,422,166 B2Sauermann Industrie
- Compressor and refrigeration cycle device having the same17 Sep 2024US 12,092,379 B2Samsung Electronics Co., Ltd.
- System and method for dispensing liquids13 Aug 2024US 12,060,879 B2Voyager Products Inc.
- Sump pump systems, controllers, and methods for operating thereof17 Sep 2026US 2026/0275974 A1
- System and method for generating synthetic container monitoring training data13 Aug 2026US 2026/0236783 A1Barrel Proof Technologies LLC
- System and method for creating a tamper-proof audit trail for container-monitoring data13 Aug 2026US 2026/0238623 A1Barrel Proof Technologies LLC
- System and method for a universal, noninvasive, multi-industry integrity monitoring and control platform6 Aug 2026US 2026/0227223 A1Barrel Proof Technologies LLC
- Basement sump control systems and methods2 Jul 2026US 2026/0185519 A1DNI Realty, LLC
Most cited
By later US patents
- Suction fitting with pump control device135US 5,167,041 AKDI American Products, Inc. · 1992
- Sump pump drive system91US 5,234,319 A1993
- Suction fitting with pump control device90US 5,347,664 AKDI American Products, Inc. · 1994
- Liquid level control with capacitive sensors89US 5,238,369 ATecumseh Products Company · 1993
- Safety supervisor for sump pumps and other hazards79US 3,941,507 A1976