F24V 40/00
Production or use of heat resulting from internal friction of moving fluids
Official title: Production or use of heat resulting from internal friction of moving fluids or from friction between fluids and moving bodies
F24V40/00 (Production or use of heat resulting from internal friction of moving fluids) appears on 264 US grants and 113 published applications in this corpus.
Search patents in F24V- Granted patents
- 264
- Published applications
- 113
- Assignees
- 79
- Inventors
- 280
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 7 | 0 |
| 1982 | 7 | 0 |
| 1983 | 9 | 0 |
| 1984 | 11 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 7 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 24 | 0 |
| 1999 | 41 | 0 |
| 2000 | 23 | 0 |
| 2001 | 6 | 0 |
| 2002 | 3 | 3 |
| 2003 | 4 | 2 |
| 2004 | 3 | 5 |
| 2005 | 7 | 8 |
| 2006 | 4 | 3 |
| 2007 | 0 | 1 |
| 2008 | 4 | 7 |
| 2009 | 2 | 2 |
| 2010 | 3 | 6 |
| 2011 | 1 | 5 |
| 2012 | 4 | 4 |
| 2013 | 6 | 4 |
| 2014 | 3 | 4 |
| 2015 | 0 | 6 |
| 2016 | 2 | 8 |
| 2017 | 6 | 2 |
| 2018 | 5 | 3 |
| 2019 | 7 | 6 |
| 2020 | 1 | 9 |
| 2021 | 4 | 4 |
| 2022 | 6 | 3 |
| 2023 | 4 | 9 |
| 2024 | 0 | 2 |
| 2025 | 2 | 4 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and apparatus for manufacturing cement using rotary generated thermal energy28 Jul 2026US 12,692,192 B2Coolbrook Oy
- Chemical liquid supply module and substrate treating apparatus including the same23 Jun 2026US 12,663,187 B2Semes Co., Ltd.
- Method and apparatus for heating fluids in processes related to refining and petrochemical industries using rotary generated thermal energy9 Jun 2026US 12,649,689 B2Coolbrook Oy
- Air source heat pump system and method of use for industrial steam generation21 Oct 2025US 12,449,121 B1AtmosZero, Inc.
- Flameless combo heater14 Jan 2025US 12,196,155 B2ConleyMax Inc.
- Refining and/or petrochemical facility and apparatus for heating fluids in processes related to refining and petrochemical industries using rotary generated thermal energy17 Sep 2026US 2026/0274747 A1Coolbrook Oy
- Reaction zone for a fluid processing turboheating machine23 Jul 2026US 2026/0208146 A1
- Thermal Energy Storage System and Heat Pump Cycles for Industrial Heat Generation15 Jan 2026US 2026/0016155 A1AtmosZero, Inc.
- Air source heat pump system and method of use for industrial steam generation23 Oct 2025US 2025/0327567 A1AtmosZero, Inc.
- Heating apparatus and method for industrial use12 Jun 2025US 2025/0189174 A1
Most cited
By later US patents
- Centrifugal heating unit147US 4,494,524 A1985
- Apparatus for heating fluids109US 5,188,090 AHydro Dynamics, Inc. · 1993
- Apparatus for generating thermal energy and electrical energy80US 4,264,826 AElmapa N.V. · 1981
- Mechanical liquid vaporizing waterbrake73US 5,279,262 A1994
- C-faced heating pump69US 5,957,122 AHydro Dynamics, Inc. · 1999