H01G 9/00
Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices
Official title: Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
H01G9/00 (Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices) appears on 7,173 US grants and 8,300 published applications in this corpus.
Search patents in H01G- Granted patents
- 7,173
- Published applications
- 8,300
- Assignees
- 2,123
- Inventors
- 12,901
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 35 | 0 |
| 1977 | 47 | 0 |
| 1978 | 62 | 0 |
| 1979 | 37 | 0 |
| 1980 | 41 | 0 |
| 1981 | 37 | 0 |
| 1982 | 33 | 0 |
| 1983 | 48 | 0 |
| 1984 | 55 | 0 |
| 1985 | 71 | 0 |
| 1986 | 45 | 0 |
| 1987 | 48 | 0 |
| 1988 | 52 | 0 |
| 1989 | 57 | 0 |
| 1990 | 44 | 0 |
| 1991 | 49 | 0 |
| 1992 | 46 | 0 |
| 1993 | 36 | 0 |
| 1994 | 24 | 0 |
| 1995 | 58 | 0 |
| 1996 | 52 | 0 |
| 1997 | 43 | 0 |
| 1998 | 62 | 0 |
| 1999 | 72 | 0 |
| 2000 | 78 | 0 |
| 2001 | 137 | 47 |
| 2002 | 166 | 178 |
| 2003 | 173 | 192 |
| 2004 | 166 | 267 |
| 2005 | 160 | 276 |
| 2006 | 197 | 331 |
| 2007 | 148 | 302 |
| 2008 | 180 | 322 |
| 2009 | 162 | 429 |
| 2010 | 232 | 455 |
| 2011 | 243 | 447 |
| 2012 | 269 | 448 |
| 2013 | 294 | 457 |
| 2014 | 315 | 420 |
| 2015 | 307 | 362 |
| 2016 | 297 | 383 |
| 2017 | 280 | 400 |
| 2018 | 303 | 402 |
| 2019 | 313 | 353 |
| 2020 | 280 | 320 |
| 2021 | 272 | 289 |
| 2022 | 237 | 292 |
| 2023 | 217 | 297 |
| 2024 | 218 | 241 |
| 2025 | 255 | 224 |
| 2026 | 120 | 166 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01G 9/004Details4,722
- H01G 9/20Light-sensitive devices1,905
- H01G 9/15Solid electrolytic capacitors1,551
- H01G 9/0029Processes of manufacture1,468
- H01G 9/145Liquid electrolytic capacitors414
- H01G 9/26Structural combinations of electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive295
- H01G 9/0003Protection against electric or thermal overload169
- H01G 9/28Structural combinations of electrolytic capacitors, rectifiers, detectors, switching devices with other electric115
Recent patents
- Electrolytic capacitor and liquid component for electrolytic capacitor6 Oct 2026US 12,755,906 B2Panasonic Intellectual Property Management Co., Ltd.
- Thin film capacitor having a metal foil with roughened main surfaces, manufacturing method therefor, and electronic circuit board having the thin film capacitor6 Oct 2026US 12,755,907 B2TDK Corporation
- Solar cell employing phosphorescent materials6 Oct 2026US 12,757,522 B2Rensselaer Polytechnic Institute
- Capacitor and method for manufacturing same22 Sep 2026US 12,744,163 B2Panasonic Intellectual Property Management Co., Ltd.
- Electrolytic capacitor22 Sep 2026US 12,744,164 B2Panasonic Intellectual Property Management Co., Ltd.
- Electrolytic capacitor element and manufacturing method of the same8 Oct 2026US 2026/0311936 A1Elna Company Ltd.
- Perovskite/silicon tandem photovoltaic device8 Oct 2026US 2026/0314112 A1Arizona Board of Regents on behalf of Arizona State University
- Solid electrolytic capacitor1 Oct 2026US 2026/0302089 A1Panasonic Intellectual Property Management Co., Ltd.
- Electrolytic capacitor and method for producing same1 Oct 2026US 2026/0302090 A1Panasonic Intellectual Property Management Co., Ltd.
- Electrolytic capacitor1 Oct 2026US 2026/0302091 A1Nippon Chemi-Con Corporation
Most cited
By later US patents
- Aluminum electrolytic capacitor and a manufacturing method therefor466US 4,663,824 AMatsushita Electric Industrial Co., Ltd. · 1987
- 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