F28D 19/047
Sealing means
Official title: {Sealing means}
F28D19/047 (Sealing means) appears on 167 US grants and 61 published applications in this corpus.
Search patents in F28D- Granted patents
- 167
- Published applications
- 61
- Assignees
- 70
- Inventors
- 212
- Latest grant
- 11 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 9 | 0 |
| 1978 | 15 | 0 |
| 1979 | 7 | 0 |
| 1980 | 7 | 0 |
| 1981 | 10 | 0 |
| 1982 | 7 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 7 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 6 |
| 2003 | 4 | 3 |
| 2004 | 3 | 0 |
| 2005 | 1 | 0 |
| 2006 | 2 | 3 |
| 2007 | 2 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 4 |
| 2010 | 2 | 6 |
| 2011 | 0 | 7 |
| 2012 | 2 | 4 |
| 2013 | 5 | 6 |
| 2014 | 4 | 6 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 2 | 2 |
| 2018 | 0 | 2 |
| 2019 | 2 | 5 |
| 2020 | 3 | 0 |
| 2021 | 2 | 1 |
| 2022 | 2 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- Parabolically deforming sector plate11 Jun 2024US 12,007,174 B2Howden Group Limited
- Heat storing and heat transfer systems incorporating a secondary chamber selectively moveable into a primary heat storage member23 May 2023US 11,656,035 B2
- Flexible seal for a rotary regenerative preheater17 May 2022US 11,333,446 B2Arvos Ljungstrom LLC
- Rotary regenerator25 Jan 2022US 11,231,236 B2Intelligent Power Generation Limited
- Regenerator material and regenerative refrigerator5 Oct 2021US 11,137,216 B2Sumitomo Heavy Industries, Ltd.
- Sealing arrangements for rotary adsorption machines4 Sep 2025US 2025/0277631 A1Howden Group Limited
- Seals and flow restrictors for rotary machines4 Sep 2025US 2025/0277632 A1Howden Group Limited
- Self-defrosting heat exchanger and method of using same27 Mar 2025US 2025/0102248 A1
- Parabolically deforming sector plate9 Mar 2023US 2023/0073822 A1Howden Group Limited
- Rotary regenerator1 Jul 2021US 2021/0199388 A1Intelligent Power Generation Limited
Most cited
By later US patents
- Sealing arrangement for air preheater36US 4,791,980 AEagleair, Inc. · 1988
- Seal heat shield34US 4,183,539 AGeneral Motors Corporation · 1980
- Heat exchanger containing a component capable of discontinuous movement34US 5,259,444 AMasachusetts Institute of Technology · 1993
- Rotor turndown sensor and control33US 4,206,803 AThe Air Preheater Company, Inc. · 1980
- Strain-tolerant ceramic coated seal32US 5,352,540 AAlliedSignal Inc. · 1994