F28F 9/0133
Formed by concentric strips
Official title: {formed by concentric strips}
F28F9/0133 (Formed by concentric strips) appears on 11 US grants and 4 published applications in this corpus.
Search patents in F28F- Granted patents
- 11
- Published applications
- 4
- Assignees
- 12
- Inventors
- 23
- Latest grant
- 6 Feb 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Liquid to liquid multi-pass countercurrent heat exchanger6 Feb 2018US 9,885,523 B2Caloris Engineering, LLC
- Device for reducing the vibrations of a tube bundle of a heat exchanger inside its shell26 Jul 2016US 9,400,143 B2Borgwarner Emissions Systems Spain, S.L. Unipersonal
- Emergency heat exchanger for cooling the primary fluid of a nuclear reactor, and a process for assembling this heat exchanger22 Nov 1988US 4,786,463 ANovatome
- Heat exchangers with clusters of straight or corrugated tubes, especially to systems for supporting the tubes at fixed and movable axial levels4 Mar 1986US 4,573,528 A
- Tube support grid and spacer therefor18 Feb 1986US 4,570,703 AThe United States of America as represented by the United States Department of Energy
- Heat exchanger3 Mar 2022US 2022/0065544 A1LG Electronics Inc.
- Retention device for a product17 Sep 2015US 2015/0260465 A1BorgWarner Inc.
- Liquid to liquid multi-pass countercurrent heat exchanger18 Sep 2014US 2014/0262162 A1Caloris Engineering, LLC
- Device for reducing the vibrations of a tube bundle of a heat exchanger inside its shell13 Feb 2014US 2014/0041832 A1Borgwarner Emissions Systems Spain, S.L.
Most cited
By later US patents
- Tube support grid and spacer therefor23US 4,570,703 AThe United States of America as represented by the United States Department of Energy · 1986
- Heat exchanger18US 4,058,161 A1977
- Tube-in-shell heat exchangers11US 4,336,614 ANuclear Power Company Limited · 1982
- Device for locating a layer of tubes in an enclosure10US 4,105,067 ACreusot-Loire · 1978
- Heat exchanger system10US 4,108,240 AAktiebolaget Atomenergi · 1978