F28F 1/28
The element being built-up from finned sections
Official title: the element being built-up from finned sections
F28F1/28 (The element being built-up from finned sections) appears on 28 US grants and 38 published applications in this corpus.
Search patents in F28F- Granted patents
- 28
- Published applications
- 38
- Assignees
- 30
- Inventors
- 101
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 3 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 2 | 7 |
| 2019 | 2 | 4 |
| 2020 | 1 | 4 |
| 2021 | 4 | 1 |
| 2022 | 2 | 3 |
| 2023 | 2 | 0 |
| 2024 | 0 | 4 |
| 2025 | 3 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heat exchanger18 Aug 2026US 12,710,233 B2LG Electronics Inc.
- Heat augmentation features in a cast heat exchanger30 Dec 2025US 12,510,308 B2Rtx Corporation
- Cast plate heat exchanger and method of making using directional solidification25 Nov 2025US 12,480,721 B2Rtx Corporation
- Cover fin and heat exchanger unit including the same13 May 2025US 12,298,087 B2Kyungdong Navien Co., Ltd.
- Finned tube heat exchangers and methods for manufacturing same5 Dec 2023US 11,835,306 B2Rheem Manufacturing Company
- Heat augmentation features in a cast heat exchanger7 May 2026US 2026/0126249 A1Rtx Corporation
- Heat exchanger and method for manufacturing same13 Feb 2025US 2025/0052518 A1S Plus Comtech Co., Ltd.
- Heat exchanger22 Aug 2024US 2024/0280327 A1LG Electronics Inc.
- Cover fin and heat exchanger unit including the same4 Jul 2024US 2024/0219128 A1Kyungdong Navien Co., Ltd.
- Cast plate heat exchanger and method of making using directional solidification22 Feb 2024US 2024/0060728 A1Rtx Corporation
Most cited
By later US patents
- Finned-duct heat exchanger20US 5,318,112 ARaditech Ltd. · 1994
- Computer cooling system and method of use17US 9,010,141 B2Chilldyne, Inc. · 2015
- Controlled performance heat exchanger for evaporative and condensing processes10US 4,340,114 ALambda Energy Products, Inc. · 1982
- Counter flow heat exchanger with integrated fins and tubes10US 6,662,858 B22003
- Heat exchanger fin with corrugated portion and louvers5US 9,441,890 B2LG Electronics Inc. · 2016