F28F 2220/00
Closure means
Official title: Closure means, e.g. end caps on header boxes or plugs on conduits
F28F2220/00 (Closure means) appears on 228 US grants and 250 published applications in this corpus.
Search patents in F28F- Granted patents
- 228
- Published applications
- 250
- Assignees
- 166
- Inventors
- 706
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 5 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 12 | 0 |
| 2002 | 7 | 6 |
| 2003 | 5 | 3 |
| 2004 | 4 | 6 |
| 2005 | 8 | 14 |
| 2006 | 8 | 16 |
| 2007 | 2 | 12 |
| 2008 | 6 | 18 |
| 2009 | 1 | 7 |
| 2010 | 10 | 7 |
| 2011 | 9 | 7 |
| 2012 | 3 | 9 |
| 2013 | 3 | 10 |
| 2014 | 4 | 8 |
| 2015 | 6 | 5 |
| 2016 | 9 | 5 |
| 2017 | 1 | 15 |
| 2018 | 3 | 11 |
| 2019 | 15 | 14 |
| 2020 | 7 | 8 |
| 2021 | 5 | 14 |
| 2022 | 9 | 17 |
| 2023 | 7 | 8 |
| 2024 | 9 | 11 |
| 2025 | 10 | 7 |
| 2026 | 6 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquid cooling heat dissipation device2 Jun 2026US 12,644,657 B2Apaltek Co., Ltd.
- Methods for attaching a wick plug to a wick28 Apr 2026US 12,611,740 B2Westinghouse Electric Corp.
- Thermal management component, thermal management system, battery, and electric apparatus24 Mar 2026US 12,586,843 B2Contemporary Amperex Technology (Hong Kong) Limited
- Exothermal vaporizer10 Mar 2026US 12,569,631 B2DynaVap, LLC
- Manifold for heat exchanger and heat exchanger10 Feb 2026US 12,546,544 B2Danfoss A/S
- Heat exchanger and air-conditioning apparatus20 Aug 2026US 2026/0243522 A1Mitsubishi Electric Corporation
- Low thermal resistance cylindrical evaporator and manufacturing method thereof23 Jul 2026US 2026/0210597 A1Ningbo Hicon Intelligent Technology Co., Ltd.
- Exothermal vaporizer9 Jul 2026US 2026/0192064 A1
- Thermal management component, thermal management system, battery, and electric apparatus2 Jul 2026US 2026/0188786 A1Contemporary Amperex Technology (Hong Kong) Limited
- Vessel charging system and method7 May 2026US 2026/0126247 A1ThermAvant Technologies, LLC
Most cited
By later US patents
- Cooling channel surface arrangement for a heat exchanger wall construction59US 4,078,604 AMesserschmitt-Bolkow-Blohm GmbH · 1978
- Corrugated folded plate heat exchanger57US 6,244,333 B1Zeks Air Drier Corporation · 2001
- Closure for heat exchanger43US 3,948,315 ABrown Fintube Company · 1976
- Multi-layered type heat exchanger40US 5,318,114 ASanden Corporation · 1994
- Forced vaporization heat sink for semiconductor devices38US 4,268,850 AElectric Power Research Institute, Inc. · 1981