F28F 2009/224
Longitudinal partitions
Official title: {Longitudinal partitions}
F28F2009/224 (Longitudinal partitions) appears on 114 US grants and 150 published applications in this corpus.
Search patents in F28F- Granted patents
- 114
- Published applications
- 150
- Assignees
- 110
- Inventors
- 348
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 4 |
| 2004 | 1 | 0 |
| 2005 | 0 | 2 |
| 2006 | 3 | 4 |
| 2007 | 0 | 8 |
| 2008 | 2 | 5 |
| 2009 | 2 | 5 |
| 2010 | 3 | 7 |
| 2011 | 2 | 1 |
| 2012 | 2 | 2 |
| 2013 | 3 | 4 |
| 2014 | 3 | 9 |
| 2015 | 2 | 0 |
| 2016 | 4 | 5 |
| 2017 | 5 | 11 |
| 2018 | 6 | 9 |
| 2019 | 6 | 9 |
| 2020 | 7 | 16 |
| 2021 | 13 | 12 |
| 2022 | 11 | 12 |
| 2023 | 7 | 4 |
| 2024 | 7 | 13 |
| 2025 | 6 | 3 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Falling film evaporator8 Sep 2026US 12,729,891 B2Tyco Fire & Security GmbH
- Heat exchanger9 Jun 2026US 12,650,273 B2Hanon Systems
- Heat exchanger with a vertical rod baffle structure and at least one notched longitudinal partition plate2 Jun 2026US 12,644,650 B2Lummus Novolen Technology GmbH
- Heat exchanger tubes and tube assembly configurations3 Feb 2026US 12,540,755 B2Rheem Manufacturing Company
- Heat exchanger3 Feb 2026US 12,540,775 B2
- Modular multi-phase heat exchanger systems4 Jun 2026US 2026/0153294 A1Scope Technology and Manufacturing, LLC
- Evaporator with finned channels30 Apr 2026US 2026/0118031 A1Follett Products, LLC
- Shell-side heat transfer enhancement12 Mar 2026US 2026/0071823 A1Saudi Arabian Oil Company
- Liquid cooling plate12 Feb 2026US 2026/0047037 A1Eve Energy Co., Ltd.
- Sieve element of a tubular heat exchanger and its use in a tubular heat exchanger22 Jan 2026US 2026/0022901 A1Aic Spolka Akcyjna
Most cited
By later US patents
- Heat exchanger assembly44US 4,415,024 AJoy Manufacturing Company · 1983
- Heat exchanger with two-stage heat transfer26US 6,499,534 B1AquaCal, Inc. · 2002
- Heat exchanger baffle arrangement20US 3,958,630 AExxon Research & Engineering Co. · 1976
- Heat exchange structure19US 4,227,570 ACaterpillar Tractor Co. · 1980
- Partitioned heat-exchanger shell17US 4,215,745 AKempchen & Co. GmbH · 1980