F28D 3/00
Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the
Official title: Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits (F28D5/00 takes precedence)
F28D3/00 (Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the) appears on 258 US grants and 218 published applications in this corpus.
Search patents in F28D- Granted patents
- 258
- Published applications
- 218
- Assignees
- 180
- Inventors
- 632
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 4 | 0 |
| 1982 | 6 | 0 |
| 1983 | 1 | 0 |
| 1984 | 7 | 0 |
| 1985 | 5 | 0 |
| 1986 | 12 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 9 | 0 |
| 2002 | 2 | 2 |
| 2003 | 5 | 3 |
| 2004 | 3 | 5 |
| 2005 | 1 | 0 |
| 2006 | 1 | 8 |
| 2007 | 3 | 0 |
| 2008 | 1 | 5 |
| 2009 | 3 | 5 |
| 2010 | 5 | 9 |
| 2011 | 3 | 9 |
| 2012 | 2 | 11 |
| 2013 | 1 | 11 |
| 2014 | 12 | 10 |
| 2015 | 5 | 10 |
| 2016 | 8 | 17 |
| 2017 | 6 | 19 |
| 2018 | 8 | 10 |
| 2019 | 18 | 10 |
| 2020 | 15 | 6 |
| 2021 | 8 | 15 |
| 2022 | 9 | 10 |
| 2023 | 4 | 9 |
| 2024 | 12 | 15 |
| 2025 | 7 | 11 |
| 2026 | 9 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Heat exchanger7 Jul 2026US 12,674,622 B2Evapco, Inc.
- Heat exchanger with vapor extractors26 May 2026US 12,638,243 B2Industrial Advanced Services Fz-LLC
- Solar energy system19 May 2026US 12,633,871 B2
- Evaporative condenser21 Apr 2026US 12,607,391 B2Kyungdong Navien Co., Ltd.
- Baffles for heat exchangers7 Apr 2026US 12,595,977 B2Yara International Asa
- Falling film evaporator8 Oct 2026US 2026/0309429 A1Bitzer Kuhlmaschinenbau GmbH
- Heat exchanger and energy storage device6 Aug 2026US 2026/0229643 A1Huawei Digital Power Technologies Co., Ltd.
- Heat exchange device30 Jul 2026US 2026/0218985 A1Shenzhen Envicool Technology Co., Ltd.
- Evaporator2 Jul 2026US 2026/0185192 A1Tyco Fire & Security GmbH
- Water injection module of heat exchanger2 Jul 2026US 2026/0185786 A1Kyungdong Navien Co., Ltd.
Most cited
By later US patents
- Method and apparatus for interacting a gas and liquid on a convoluted array of tubes96US 5,472,044 AE. I. Du Pont de Nemours and Company · 1995
- Heat and mass exchanger94US 7,269,966 B2AIL Reasearch, Inc. · 2007
- Vapor compression distillation apparatus69US 4,585,523 A1986
- Falling film evaporator with refrigerant distribution system55US 5,645,124 AAmerican Standard Inc. · 1997
- Falling film evaporator for a vapor compression refrigeration chiller52US 6,293,112 B1American Standard International Inc. · 2001