F28D 11/04
Performed by a tube or a bundle of tubes
Official title: performed by a tube or a bundle of tubes
F28D11/04 (Performed by a tube or a bundle of tubes) appears on 63 US grants and 32 published applications in this corpus.
Search patents in F28D- Granted patents
- 63
- Published applications
- 32
- Assignees
- 31
- Inventors
- 91
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 7 | 0 |
| 1978 | 8 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 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 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 4 |
| 2013 | 2 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 0 |
| 2016 | 2 | 4 |
| 2017 | 0 | 1 |
| 2018 | 4 | 0 |
| 2019 | 1 | 2 |
| 2020 | 0 | 1 |
| 2021 | 0 | 3 |
| 2022 | 2 | 2 |
| 2023 | 2 | 2 |
| 2024 | 1 | 2 |
| 2025 | 2 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rotary batch preheater14 Apr 2026US 12,600,657 B2
- Counterflow rotary cooler31 Mar 2026US 12,590,767 B2Industrial Process Systems, Inc.
- Rotatable heat exchanger for a gas turbine engine16 Sep 2025US 12,416,263 B2General Electric Company
- Rotary heat exchanger25 Mar 2025US 12,259,191 B2Tohoku University
- Rotary tube apparatus4 Jun 2024US 12,000,655 B2Grenzebach Bsh GmbH
- Rotary Batch Preheater26 Mar 2026US 2026/0084995 A1
- Rotatable heat exchanger for a gas turbine engine11 Dec 2025US 2025/0376944 A1General Electric Company
- Counterflow Rotary Cooler10 Apr 2025US 2025/0116467 A1Industrial Process Systems, Inc.
- Heat exchanger, in particular shell-and-tube heat exchanger, for arrangement in a rotor having an axis of rotation9 Jan 2025US 2025/0012511 A1Ecop Technologies GmbH
- Rotatable heat exchanger for a gas turbine engine7 Nov 2024US 2024/0369019 A1General Electric Company
Most cited
By later US patents
- Integrated variable geometry flow restrictor and heat exchanger71US 8,961,114 B2General Electric Company · 2015
- Process for recycling asphalt-aggregate compositions32US 4,000,000 A1976
- Combination rotating fluidized bed combustor and heat exchanger26US 4,277,938 ACaterpillar Tractor Co. · 1981
- Temperature-control system with rotary heat exchangers23US 4,000,778 A1977
- Rotary high density heat exchanger20US 9,243,850 B12016