F24S 70/20
Details of absorbing elements: characterised by absorbing coatings
Official title: characterised by absorbing coatings; characterised by surface treatment for increasing absorption
F24S70/20 (Details of absorbing elements: characterised by absorbing coatings) appears on 380 US grants and 313 published applications in this corpus.
Search patents in F24S- Granted patents
- 380
- Published applications
- 313
- Assignees
- 278
- Inventors
- 909
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 20 | 0 |
| 1978 | 17 | 0 |
| 1979 | 11 | 0 |
| 1980 | 12 | 0 |
| 1981 | 22 | 0 |
| 1982 | 14 | 0 |
| 1983 | 15 | 0 |
| 1984 | 16 | 0 |
| 1985 | 12 | 0 |
| 1986 | 10 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 3 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 5 |
| 2008 | 0 | 5 |
| 2009 | 2 | 14 |
| 2010 | 1 | 12 |
| 2011 | 2 | 7 |
| 2012 | 4 | 14 |
| 2013 | 7 | 28 |
| 2014 | 5 | 30 |
| 2015 | 6 | 18 |
| 2016 | 12 | 29 |
| 2017 | 18 | 13 |
| 2018 | 17 | 13 |
| 2019 | 18 | 19 |
| 2020 | 11 | 16 |
| 2021 | 11 | 16 |
| 2022 | 12 | 18 |
| 2023 | 9 | 17 |
| 2024 | 11 | 17 |
| 2025 | 17 | 6 |
| 2026 | 10 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Heat storage device and method for producing the same22 Sep 2026US 12,742,572 B2Canon Kabushiki Kaisha
- Method for producing plasmonic-nanostructure spectrally selective solar absorber having high solar absorptance, low thermal emittance, and high thermal stability16 Jun 2026US 12,656,024 B2Northeastern University
- Solar heating system9 Jun 2026US 12,650,245 B2
- Solar thermal panel and method for producing water2 Jun 2026US 12,644,261 B2Akua S.R.L.
- Metal-dielectric thin film structure for solar light energy harvesting26 May 2026US 12,638,216 B1Board of Trustees of the University of Alabama, for and on behalf of the University of Alabama in Huntsville
- Apparatus and method correlated therewith for producing water by means of a vapor convection type solar receiver17 Sep 2026US 2026/0275690 A1Akua S.R.L.
- Microsphere-Based Coatings for Radiative Cooling Under Direct Sunlight9 Jul 2026US 2026/0194314 A1UNM Rainforest Innovations
- Heat collection and release system and method for solar greenhouse2 Jul 2026US 2026/0185746 A1Sichuan Agricultural University
- Rapid 3d printing of aerogels with bioinspired surface structures for solar steam generation4 Jun 2026US 2026/0152658 A1
- Solid fluidized particles receiver with distributed channel networks19 Mar 2026US 2026/0078931 A1United States Department of Energy
Most cited
By later US patents
- Article and method for forming thin film flakes and coatings191US 4,434,010 AOptical Coating Laboratory, Inc. · 1984
- Ink incorporating optically variable thin film flakes190US 5,059,245 AFlex Products, Inc. · 1991
- Optically variable thin film flake and collection of the same189US 5,135,812 AFlex Products, Inc. · 1992
- High chroma multilayer interference platelets152US 5,571,624 AFlex Products, Inc. · 1996
- Optically variable multilayer thin film interference stack on flexible insoluble web135US 5,084,351 AFlex Products, Inc. · 1992