F28D 20/0056
Heat storage plants or apparatus in general: using solid heat storage material
Official title: {using solid heat storage material (F28D20/0052 takes precedence)}
F28D20/0056 (Heat storage plants or apparatus in general: using solid heat storage material) appears on 442 US grants and 596 published applications in this corpus.
Search patents in F28D- Granted patents
- 442
- Published applications
- 596
- Assignees
- 319
- Inventors
- 1,074
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 9 | 0 |
| 1978 | 11 | 0 |
| 1979 | 7 | 0 |
| 1980 | 6 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 3 |
| 2003 | 3 | 2 |
| 2004 | 2 | 3 |
| 2005 | 2 | 4 |
| 2006 | 1 | 2 |
| 2007 | 1 | 6 |
| 2008 | 0 | 8 |
| 2009 | 2 | 11 |
| 2010 | 4 | 8 |
| 2011 | 7 | 15 |
| 2012 | 2 | 13 |
| 2013 | 3 | 24 |
| 2014 | 7 | 23 |
| 2015 | 9 | 35 |
| 2016 | 13 | 27 |
| 2017 | 18 | 28 |
| 2018 | 24 | 34 |
| 2019 | 31 | 23 |
| 2020 | 19 | 31 |
| 2021 | 21 | 22 |
| 2022 | 33 | 62 |
| 2023 | 31 | 65 |
| 2024 | 56 | 59 |
| 2025 | 39 | 56 |
| 2026 | 30 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Granulated particle for cold storage material particle, cold storage material particle, cold storage device, refrigerator, cryopump superconducting magnet, nuclear magnetic resonance imaging apparatus, nuclear magnetic resonance apparatus, magnetic field application type single crystal pulling apparatus, and helium re-condensing device29 Sep 2026US 12,747,380 B2Niterra Materials Co., Ltd.
- Latent heat storage22 Sep 2026US 12,742,599 B2Shinko Electric Industries Co., Ltd.
- Thermodynamic cycle system with thermal plant integration1 Sep 2026US 12,723,542 B2Malta Inc.
- Methods for material activation with thermal energy storage system18 Aug 2026US 12,709,998 B2Rondo Energy, Inc.
- Method and apparatus for manufacturing cement using rotary generated thermal energy28 Jul 2026US 12,692,192 B2Coolbrook Oy
- Thermal energy storage8 Oct 2026US 2026/0309431 A1Magaldi Power S.P.A.
- Refining and/or petrochemical facility and apparatus for heating fluids in processes related to refining and petrochemical industries using rotary generated thermal energy17 Sep 2026US 2026/0274747 A1Coolbrook Oy
- Modular Particle Thermal Energy Storage Systems17 Sep 2026US 2026/0276320 A1Alliance for Energy Innovation, LLC
- Energy Storage10 Sep 2026US 2026/0266560 A1
- Method of making and a method of using a thermal transfer blanket system27 Aug 2026US 2026/0251402 A1The Boeing Company
Most cited
By later US patents
- Thermal energy storage unit131US 4,124,061 ARockwell International Corporation · 1978
- Heat transfer and storage system124US 4,727,930 AThe Board of Regents of the University of Washington · 1988
- Thermal storage unit and methods for using the same to heat a fluid108US 7,693,402 B2Active Power, Inc. · 2010
- Heat storage system and method92US 4,222,365 ARockwell International Corporation · 1980
- Sensible heat storage unit87US 4,405,010 ASanders Associates, Inc. · 1983