F28F 27/003
Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
Official title: {specially adapted for cooling towers}
F28F27/003 (Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus) appears on 134 US grants and 135 published applications in this corpus.
Search patents in F28F- Granted patents
- 134
- Published applications
- 135
- Assignees
- 90
- Inventors
- 284
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 6 |
| 2007 | 2 | 2 |
| 2008 | 5 | 1 |
| 2009 | 2 | 3 |
| 2010 | 0 | 3 |
| 2011 | 1 | 5 |
| 2012 | 1 | 5 |
| 2013 | 2 | 5 |
| 2014 | 2 | 5 |
| 2015 | 3 | 6 |
| 2016 | 4 | 11 |
| 2017 | 3 | 2 |
| 2018 | 8 | 7 |
| 2019 | 12 | 9 |
| 2020 | 7 | 10 |
| 2021 | 9 | 9 |
| 2022 | 8 | 12 |
| 2023 | 9 | 7 |
| 2024 | 7 | 7 |
| 2025 | 10 | 10 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and process to provide cooling water for ammonia and or hydrogen productions25 Aug 2026US 12,714,978 B2Air Products and Chemicals, Inc.
- Direct-drive system for cooling system fans, exhaust blowers and pumps19 May 2026US 12,631,410 B2Prime Datum Development Company, LLC
- Tubular membrane heat exchanger12 May 2026US 12,624,897 B2Baltimore Aircoil Company, Inc.
- Heat exchange apparatus, system, and method7 Apr 2026US 12,595,967 B2Baltimore Aircoil Company, Inc.
- Dry cooling tower11 Nov 2025US 12,467,693 B1
- Heat rejection apparatus17 Sep 2026US 2026/0276309 A1
- Co2 sequester system for cooling towers23 Jul 2026US 2026/0208101 A1Hitachi Energy Ltd
- Modular multi-phase heat exchanger systems4 Jun 2026US 2026/0153294 A1Scope Technology and Manufacturing, LLC
- Heat Transfer Apparatus with Ultraviolet Air Treatment12 Mar 2026US 2026/0069739 A1Baltimore Aircoil Company, Inc.
- Cooling tower performance modeling12 Mar 2026US 2026/0073362 A1Chemtreat, Inc.
Most cited
By later US patents
- Near optimization of cooling tower condenser water103US 5,600,960 AAmerican Standard Inc. · 1997
- Continuous on-stream monitoring of cooling tower water82US 4,992,380 ANalco Chemical Company · 1991
- Cooling tower system71US 4,931,187 AKlenzoid, Inc. · 1990
- Indexing controller system and method of automatic control of cooling water tower systems53US 4,464,315 ABetz Entec, Inc. · 1984
- Cooling tower and method for optimizing use of water and electricity41US 6,446,941 B1Kuwait Institute for Scientific Research · 2002