F04B 49/103
Responsive to speed
Official title: {Responsive to speed}
F04B49/103 (Responsive to speed) appears on 160 US grants and 160 published applications in this corpus.
Search patents in F04B- Granted patents
- 160
- Published applications
- 160
- Assignees
- 133
- Inventors
- 361
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 3 |
| 2007 | 0 | 4 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 3 | 4 |
| 2011 | 2 | 8 |
| 2012 | 1 | 6 |
| 2013 | 5 | 9 |
| 2014 | 5 | 11 |
| 2015 | 8 | 13 |
| 2016 | 4 | 11 |
| 2017 | 5 | 11 |
| 2018 | 13 | 11 |
| 2019 | 16 | 7 |
| 2020 | 12 | 9 |
| 2021 | 5 | 12 |
| 2022 | 10 | 9 |
| 2023 | 8 | 13 |
| 2024 | 10 | 6 |
| 2025 | 10 | 5 |
| 2026 | 7 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Variable speed pumping system and method16 Jun 2026US 12,655,848 B2Pentair Water Pool and Spa, Inc.
- Method for determining malfunction of a liquid drainage pump and related control device and liquid drainage pump19 May 2026US 12,631,173 B2
- Variable speed pumping system and method19 May 2026US 12,631,187 B2Pentair Water Pool and Spa, Inc.
- Fluid dispensing system24 Mar 2026US 12,583,734 B2Fluid Metering, Inc.
- Systems and methods to operate a dual-shaft gas turbine engine for hydraulic fracturing24 Mar 2026US 12,584,394 B2BJ Energy Solutions, LLC
- Variable speed pumping system and method8 Oct 2026US 2026/0309157 A1Pentair Water Pool and Spa, Inc.
- Variable speed pumping system and method1 Oct 2026US 2026/0298251 A1Pentair Water Pool and Spa, Inc.
- Method for operating a direction-of-rotation sensorless electric motor18 Jun 2026US 2026/0168488 A1Schaeffler Technologies AG & Co. KG
- Intuitive Natural Gas Compressor Monitoring System30 Apr 2026US 2026/0117763 A1Inpro/Seal LLC
- Lockout system for metering pump23 Apr 2026US 2026/0111534 A1Blue-White Industries, Ltd.
Most cited
By later US patents
- Safety indicator lights for hydraulic fracturing pumps272US 9,650,871 B2U.S. Well Services, LLC · 2017
- Hydraulic fracturing system and method for optimizing operation thereof204US 10,563,649 B2Caterpillar Inc. · 2020
- Electronic control for a rotary fluid device171US 10,100,827 B2Eaton Intelligent Power Limited · 2018
- Cavitation limiting strategies for pumping system171US 10,134,257 B2Caterpillar Inc. · 2018
- Systems and methods to operate a dual-shaft gas turbine engine for hydraulic fracturing114US 11,125,066 B1BJ Energy Solutions, LLC · 2021