H01G 9/20
Light-sensitive devices
H01G9/20 (Light-sensitive devices) appears on 1,905 US grants and 3,066 published applications in this corpus.
Search patents in H01G- Granted patents
- 1,905
- Published applications
- 3,066
- Assignees
- 1,044
- Inventors
- 5,273
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 8 | 0 |
| 1978 | 22 | 0 |
| 1979 | 7 | 0 |
| 1980 | 14 | 0 |
| 1981 | 9 | 0 |
| 1982 | 7 | 0 |
| 1983 | 19 | 0 |
| 1984 | 13 | 0 |
| 1985 | 19 | 0 |
| 1986 | 6 | 0 |
| 1987 | 10 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 13 | 0 |
| 2001 | 11 | 5 |
| 2002 | 19 | 42 |
| 2003 | 24 | 42 |
| 2004 | 20 | 54 |
| 2005 | 30 | 96 |
| 2006 | 27 | 86 |
| 2007 | 21 | 113 |
| 2008 | 31 | 106 |
| 2009 | 34 | 139 |
| 2010 | 55 | 194 |
| 2011 | 76 | 222 |
| 2012 | 84 | 207 |
| 2013 | 96 | 201 |
| 2014 | 125 | 176 |
| 2015 | 107 | 164 |
| 2016 | 111 | 177 |
| 2017 | 93 | 184 |
| 2018 | 107 | 181 |
| 2019 | 121 | 151 |
| 2020 | 100 | 117 |
| 2021 | 100 | 109 |
| 2022 | 87 | 117 |
| 2023 | 84 | 98 |
| 2024 | 66 | 50 |
| 2025 | 66 | 19 |
| 2026 | 25 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01G 9/2027Comprising an oxide semiconductor electrode1,064
- H01G 9/2059Comprising an organic dye as the active light absorbing material802
- H01G 9/2004Characterised by the electrolyte605
- H01G 9/2068Panels or arrays of photoelectrochemical cells334
- H01G 9/2022Characterized by he counter electrode145
- H01G 9/209Light trapping arrangements75
- H01G 9/2095Comprising a flexible sustrate67
- H01G 9/2045Comprising a semiconductor electrode comprising elements of the fourth group of the60
Recent patents
- Solar cell employing phosphorescent materials6 Oct 2026US 12,757,522 B2Rensselaer Polytechnic Institute
- Compound, and composition for forming hole transporting layer for perovskite solar cells15 Sep 2026US 12,735,395 B2Tokyo Chemical Industry Co., Ltd.
- Perovskite ink for scalable fabrication of efficient and stable perovskite modules15 Sep 2026US 12,735,597 B2The University of North Carolina at Chapel Hill
- Self-adherent flexible thin film stacks and photovoltaic devices including same28 Jul 2026US 12,696,610 B2Solaires Entreprises Inc.
- Method of manufacturing a thin film of perovskite compound and method of manufacturing a solar cell using the same28 Jul 2026US 12,696,674 B2Jusung Engineering Co., Ltd.
- Perovskite/silicon tandem photovoltaic device8 Oct 2026US 2026/0314112 A1Arizona Board of Regents on behalf of Arizona State University
- Method of manufacturing a thin film of perovskite compound and method of manufacturing a solar cell using the same24 Sep 2026US 2026/0293509 A1Jusung Engineering Co., Ltd.
- Organic ionic plastic crystals as electrolytes16 Jul 2026US 2026/0200851 A1
- Methods for Perovskite Device Processing by Vapor Transport Deposition16 Jul 2026US 2026/0201538 A1First Solar, Inc.
- Electrolyte of dye-sensitized solar cell and method for manufacturing the same11 Jun 2026US 2026/0162905 A1Sookmyung Women's University Industry-Academic Cooperation Foundation
Most cited
By later US patents
- Organic conductive films for semiconductor electrodes424US 4,461,691 AThe United States of America as represented by the United States Department of Energy · 1984
- Functional, photochemically active, and chemically asymmetric membranes by interfacial polymerization of derivatized multifunctional prepolymers410US 4,784,736 ABend Research, Inc. · 1988
- Functional, photochemically active, and chemically asymmetric membranes by interfacial polymerization of derivatized multifunctional prepolymers370US 4,917,800 ABend Research, Inc. · 1990
- Process for forming shaped group II-VI semiconductor nanocrystals, and product formed using process351US 6,225,198 B1The Regents of the University of California · 2001
- Carbon fibers formed from single-wall carbon nanotubes204US 6,683,783 B1William Marsh Rice University · 2004