H01G 9/02
Diaphragms
Official title: Diaphragms; Separators
H01G9/02 (Diaphragms) appears on 392 US grants and 526 published applications in this corpus.
Search patents in H01G- Granted patents
- 392
- Published applications
- 526
- Assignees
- 235
- Inventors
- 1,044
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 6 | 6 |
| 2002 | 12 | 10 |
| 2003 | 7 | 13 |
| 2004 | 9 | 13 |
| 2005 | 10 | 6 |
| 2006 | 7 | 17 |
| 2007 | 7 | 14 |
| 2008 | 3 | 12 |
| 2009 | 10 | 20 |
| 2010 | 11 | 24 |
| 2011 | 14 | 24 |
| 2012 | 10 | 19 |
| 2013 | 10 | 25 |
| 2014 | 23 | 20 |
| 2015 | 18 | 21 |
| 2016 | 14 | 22 |
| 2017 | 21 | 28 |
| 2018 | 21 | 22 |
| 2019 | 14 | 30 |
| 2020 | 25 | 28 |
| 2021 | 17 | 26 |
| 2022 | 15 | 35 |
| 2023 | 24 | 19 |
| 2024 | 20 | 22 |
| 2025 | 17 | 25 |
| 2026 | 11 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Capacitor and method for manufacturing same22 Sep 2026US 12,744,163 B2Panasonic Intellectual Property Management Co., Ltd.
- Separator for power storage device, and power storage device including same22 Sep 2026US 12,744,284 B2Asahi Kasei Battery Separator Corporation
- Dolly plate23 Jun 2026US D1,131,974 S1That Cat Camera Support, LLC · Design
- Electrode foil for electrolytic capacitor, electrolytic capacitor, method for producing electrode foil for electrolytic capacitor, and method for producing electrolytic capacitor28 Apr 2026US 12,614,679 B2Panasonic Intellectual Property Management Co., Ltd.
- Electrolytic capacitor element having a doped solid electrolyte layer17 Mar 2026US 12,580,134 B2Murata Manufacturing Co., Ltd.
- Electrolytic capacitor element and manufacturing method of the same8 Oct 2026US 2026/0311936 A1Elna Company Ltd.
- Electrolytic capacitor and method for producing electrolytic capacitor13 Aug 2026US 2026/0237566 A1Panasonic Intellectual Property Management Co., Ltd.
- Electrolytic capacitor element and electrolytic capacitor13 Aug 2026US 2026/0237567 A1Elna Company Ltd.
- Separator for Power Storage Devices, and Power Storage Device Comprising Same6 Aug 2026US 2026/0229700 A1Asahi Kasei Battery Separator Corporation
- Separator for Electricity Storage Device and Electricity Storage Device Comprising Same6 Aug 2026US 2026/0229702 A1Asahi Kasei Battery Separator Corporation
Most cited
By later US patents
- Process of manufacturing porous separator for electrochemical power supply154US 5,948,464 AImra America, Inc. · 1999
- Film for a separator of electrochemical apparatus, and production method and use thereof119US 6,096,456 AShowa Denko K. K. · 2000
- Flat capacitor for an implantable medical device108US 6,699,265 B1Cardiac Pacemakers, Inc. · 2004
- Non-symmetric capacitor103US 6,208,502 B1Aerovox Incorporated · 2001
- Flat sealing of anode/separator assembly for use in capacitors94US 7,710,713 B2Greatbatch Ltd. · 2010