F28D 5/02
In which the evaporating medium flows in a continuous film or trickles
Official title: in which the evaporating medium flows in a continuous film or trickles freely over the conduits
F28D5/02 (In which the evaporating medium flows in a continuous film or trickles) appears on 279 US grants and 289 published applications in this corpus.
Search patents in F28D- Granted patents
- 279
- Published applications
- 289
- Assignees
- 195
- Inventors
- 555
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 6 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 1 |
| 2002 | 4 | 4 |
| 2003 | 5 | 13 |
| 2004 | 12 | 11 |
| 2005 | 7 | 11 |
| 2006 | 8 | 15 |
| 2007 | 9 | 11 |
| 2008 | 3 | 10 |
| 2009 | 1 | 7 |
| 2010 | 5 | 7 |
| 2011 | 3 | 15 |
| 2012 | 2 | 9 |
| 2013 | 5 | 11 |
| 2014 | 4 | 12 |
| 2015 | 6 | 14 |
| 2016 | 8 | 16 |
| 2017 | 18 | 22 |
| 2018 | 11 | 15 |
| 2019 | 15 | 11 |
| 2020 | 12 | 12 |
| 2021 | 11 | 15 |
| 2022 | 10 | 13 |
| 2023 | 5 | 8 |
| 2024 | 12 | 17 |
| 2025 | 10 | 5 |
| 2026 | 7 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Falling film evaporator8 Sep 2026US 12,729,891 B2Tyco Fire & Security GmbH
- Tubular membrane heat exchanger12 May 2026US 12,624,897 B2Baltimore Aircoil Company, Inc.
- Evaporative condenser21 Apr 2026US 12,607,391 B2Kyungdong Navien Co., Ltd.
- Heat pump system17 Mar 2026US 12,578,129 B2Tyco Fire & Security GmbH
- Hydrogen fuel cell cooling10 Mar 2026US 12,573,644 B2Caterpillar Inc.
- Falling film evaporator8 Oct 2026US 2026/0309429 A1Bitzer Kuhlmaschinenbau GmbH
- Heat exchange device30 Jul 2026US 2026/0218985 A1Shenzhen Envicool Technology Co., Ltd.
- Dry-wet combined heat exchange device9 Jul 2026US 2026/0194299 A1Shenzhen Envicool Technology Co., Ltd.
- Multi-Mode Adiabatic Cooling System with Deluge Feature5 Mar 2026US 2026/0063380 A1
- Adiabatic pre-cooling system for v-type air cooled heat exchanger4 Sep 2025US 2025/0277628 A1Blue Enegry Global, Sia
Most cited
By later US patents
- Method and apparatus of indirect-evaporation cooling118US 6,497,107 B2Idalex Technologies, Inc. · 2002
- Combination direct and indirect closed circuit evaporative heat exchanger with blow-through fan99US 5,724,828 ABaltimore Aircoil Company, Inc. · 1998
- Method of evaporative cooling of a fluid and apparatus therefor98US 6,854,278 B22005
- Combination direct and indirect closed circuit evaporative heat exchanger72US 5,435,382 ABaltimore Aircoil Company, Inc. · 1995
- Low profile heat exchange system and method with reduced water consumption65US 6,213,200 B1Baltimore Aircoil Company, Inc. · 2001