H10F 10/13
Photovoltaic cells having absorbing layers comprising graded bandgaps
H10F10/13 (Photovoltaic cells having absorbing layers comprising graded bandgaps) appears on 149 US grants and 203 published applications in this corpus.
Search patents in H10F- Granted patents
- 149
- Published applications
- 203
- Assignees
- 111
- Inventors
- 434
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 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 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 4 |
| 2009 | 0 | 1 |
| 2010 | 0 | 13 |
| 2011 | 3 | 17 |
| 2012 | 3 | 13 |
| 2013 | 5 | 27 |
| 2014 | 19 | 33 |
| 2015 | 14 | 27 |
| 2016 | 12 | 13 |
| 2017 | 13 | 10 |
| 2018 | 18 | 4 |
| 2019 | 10 | 13 |
| 2020 | 9 | 1 |
| 2021 | 4 | 2 |
| 2022 | 2 | 8 |
| 2023 | 8 | 6 |
| 2024 | 4 | 6 |
| 2025 | 2 | 3 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Thin film solar cell including a spatially modulated intrinsic layer119US 4,816,082 AEnergy Conversion Devices, Inc. · 1989
- Pin junction photovoltaic element having an I-type semiconductor layer with a plurality of regions having different graded band gaps76US 5,252,142 ACanon Kabushiki Kaisha · 1993
- Current and lattice matched tandem solar cell53US 4,667,059 AThe United States of America as represented by the United States Department of Energy · 1987
- Method for forming a film with a graded bandgap by deposition of an amorphous material from a plasma38US 7,964,438 B2Dow Corning Corporation · 2011
- Graded affinity photovoltaic cell30US 4,542,256 AUniversity of Delaware · 1985