F28B 9/00
Auxiliary systems, arrangements, or devices
F28B9/00 (Auxiliary systems, arrangements, or devices) appears on 409 US grants and 342 published applications in this corpus.
Search patents in F28B- Granted patents
- 409
- Published applications
- 342
- Assignees
- 284
- Inventors
- 890
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 7 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 12 | 0 |
| 1981 | 11 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 6 | 0 |
| 1985 | 12 | 0 |
| 1986 | 8 | 0 |
| 1987 | 4 | 0 |
| 1988 | 10 | 0 |
| 1989 | 3 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 9 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 8 | 0 |
| 2000 | 5 | 0 |
| 2001 | 11 | 3 |
| 2002 | 4 | 4 |
| 2003 | 6 | 7 |
| 2004 | 6 | 2 |
| 2005 | 4 | 11 |
| 2006 | 7 | 13 |
| 2007 | 2 | 5 |
| 2008 | 4 | 9 |
| 2009 | 7 | 11 |
| 2010 | 4 | 18 |
| 2011 | 3 | 6 |
| 2012 | 7 | 15 |
| 2013 | 6 | 20 |
| 2014 | 13 | 12 |
| 2015 | 7 | 25 |
| 2016 | 13 | 27 |
| 2017 | 23 | 28 |
| 2018 | 16 | 20 |
| 2019 | 27 | 22 |
| 2020 | 29 | 24 |
| 2021 | 16 | 16 |
| 2022 | 16 | 10 |
| 2023 | 7 | 12 |
| 2024 | 10 | 8 |
| 2025 | 10 | 7 |
| 2026 | 2 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F28B 9/08Auxiliary systems, arrangements, or devices: for collecting and removing condensate140
- F28B 9/10Auxiliary systems, arrangements, or devices: for extracting, cooling, and removing non-condensable gases113
- F28B 9/04Auxiliary systems, arrangements, or devices: for feeding, collecting, and storing cooling water111
- F28B 9/02Auxiliary systems, arrangements, or devices: for feeding steam or vapour to condensers52
- F28B 9/005Auxiliary systems, arrangements, or devices: for protection against freezing19
Recent patents
- Steam heat exchanger2 Jun 2026US 12,644,648 B2
- Collecting apparatus, condensation equipment, and collecting method10 Feb 2026US 12,546,537 B2Mitsubishi Heavy Industries, Ltd.
- Advanced large scale field-erected air cooled industrial steam condenser4 Nov 2025US 12,460,866 B2Evapco, Inc.
- Packing sheet, packing module and cooling tower30 Sep 2025US 12,429,294 B2Shandong Beno Cooling Equipment Co., Ltd.
- Steam condenser with heat exchanger and a cooking oven with such steam condenser5 Aug 2025US 12,379,161 B2“Retech” SpóLka Z Ograniczona Odpowiedzialnoscia
- Condenser1 Oct 2026US 2026/0298543 A1Mitsubishi Heavy Industries, Ltd.
- Non-electromechanical, pumpless liquid recirculation system for air-cooled condenser and cooler adiabatic pre-cooling system24 Sep 2026US 2026/0287262 A1
- Support systems for condensing systems20 Aug 2026US 2026/0243518 A1Nouvel Technologies, Inc.
- Modular heat transfer systems and associated methods of heat transfer6 Aug 2026US 2026/0227136 A1Spx Cooling Tech, LLC
- Advanced large scale field-erected air cooled industrial steam condenser18 Jun 2026US 2026/0168732 A1
Most cited
By later US patents
- Thermoelectric device with evaporating/condensing heat exchanger139US 5,737,923 AMarlow Industries, Inc. · 1998
- Thermoelectric refrigerator with evaporating/condensing heat exchanger113US 6,003,319 AMarlow Industries, Inc. · 1999
- Compression and condensation of turbine exhaust steam88US 6,484,503 B12002
- Electronic device cooling system75US 8,223,495 B1Exaflop LLC · 2012
- Process for cooling down a hot flue gas stream73US 7,655,071 B2Shell Oil Company · 2010