F28G 13/00
Appliances or processes not covered by groups f28g1/00 - f28g11/00
Official title: Appliances or processes not covered by groups F28G1/00 - F28G11/00; Combinations of appliances or processes covered by groups F28G1/00 - F28G11/00
F28G13/00 (Appliances or processes not covered by groups f28g1/00 - f28g11/00) appears on 132 US grants and 133 published applications in this corpus.
Search patents in F28G- Granted patents
- 132
- Published applications
- 133
- Assignees
- 103
- Inventors
- 296
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 4 |
| 2003 | 3 | 3 |
| 2004 | 2 | 0 |
| 2005 | 2 | 4 |
| 2006 | 3 | 5 |
| 2007 | 1 | 0 |
| 2008 | 0 | 4 |
| 2009 | 2 | 4 |
| 2010 | 0 | 5 |
| 2011 | 3 | 7 |
| 2012 | 2 | 10 |
| 2013 | 5 | 3 |
| 2014 | 4 | 5 |
| 2015 | 8 | 5 |
| 2016 | 3 | 9 |
| 2017 | 3 | 7 |
| 2018 | 6 | 14 |
| 2019 | 7 | 7 |
| 2020 | 12 | 6 |
| 2021 | 6 | 7 |
| 2022 | 6 | 7 |
| 2023 | 3 | 5 |
| 2024 | 4 | 4 |
| 2025 | 5 | 6 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method, system and apparatus for hydrocarbon flow system fluid cooling4 Aug 2026US 12,698,942 B2Empig AS
- Three-dimensionally distributed liquid atomization heat exchanger, control method thereof, refrigeration system, and air conditioner5 May 2026US 12,618,595 B2Beijing Jingkelun Engineering Design and Research Institute Co., Ltd.
- Catalyst regeneration system utilization for heat exchanger decoking3 Mar 2026US 12,564,831 B2Saudi Arabian Oil Company
- Method and apparatus for improving steam oxidation resistance of small diameter boiler tube in coal-fired boiler3 Feb 2026US 12,540,729 B2Xi'an Thermal Power Research Institute Co., Ltd.
- Opening maching apparatus for heat transfer tube, method of forming opening in tube wall of heat transfer tube using same, and method of removing foreign material through same opening of same heat transfer tube2 Dec 2025US 12,485,462 B2Doosan Enerbility Co., Ltd.
- Heat exchanger and method for operating a heat exchanger30 Jul 2026US 2026/0218992 A1Huber SE
- Passive heat and mass transfer system11 Dec 2025US 2025/0377167 A1Advanced Technology Management Group LLC
- Articulating radiator system4 Dec 2025US 2025/0369707 A1Paragon Space Development Corporation
- Catalyst regeneration system utilization for heat exchanger decoking27 Nov 2025US 2025/0360500 A1Saudi Arabian Oil Company
- Method and apparatus for improving steam oxidation resistance of small diameter boiler tube in coal-fired boiler20 Mar 2025US 2025/0093022 A1Xi'an Thermal Power Research Institute Co., Ltd.
Most cited
By later US patents
- Laser removal of sludge from steam generators42US 4,920,994 AThe United States of America as represented by the United States Department of Energy · 1990
- Self-cleaning heat exchanger fan assembly and controls41US 5,226,285 ADanhard, Inc. · 1993
- Laser system for slag removal39US 6,710,285 B2First Call Explosive Solutions, Inc. · 2004
- Method for heating a viscous polyethylene solution37US 5,037,955 AThe Dow Chemical Company · 1991
- Method and apparatus for removing deposit from recovery boilers37US 5,113,802 AUnion Camp Corporation · 1992