C25B 13/06
Based on asbestos
Official title: based on asbestos
C25B13/06 (Based on asbestos) appears on 53 US grants and 3 published applications in this corpus.
Search patents in C25B- Granted patents
- 53
- Published applications
- 3
- Assignees
- 24
- Inventors
- 77
- Latest grant
- 18 Oct 2011
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 7 | 0 |
| 1980 | 7 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 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 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 2 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Diaphragm for electrolytic cell18 Oct 2011US 8,038,865 B2PPG Industries Ohio, Inc.
- Process for preparing sodium hydroxide, chlorine and hydrogen from aqueous salt solution using solar energy7 Jun 2011US 7,955,490 B2
- Preparation process for a microporous diaphragm and the diaphragm produced thereby20 Aug 1996US 5,547,550 ARhone-Poulenc Chimie
- Method of making microporous asbestos diaphragms/cathodes for electrolytic cells14 Jun 1994US 5,320,867 ARhone-Poulenc Chimie
- Microporous asbestos diaphragms/cathodes for electrolytic cells3 Mar 1992US 5,092,977 ARhone-Poulenc Chimie
- Water electrolysis electrode, water electrolysis anode, water electrolysis cathode, water electrolysis cell, and water electrolysis device28 May 2026US 2026/0146345 A1Panasonic Intellectual Property Management Co., Ltd.
- Process for preparing sodium hydroxide, chlorine and hydrogen from aqueous salt solution using solar energy30 Apr 2009US 2009/0107850 A1
- Diaphragm For Electrolytic Cell27 Nov 2008US 2008/0289956 A1PPG Industries Ohio, Inc.
Most cited
By later US patents
- Method of manufacturing electrolysis cell diaphragms36US 3,980,613 ARhone-Progil · 1976
- Selective diaphragm for electrolysis30US 4,135,996 ARhone-Poulenc Industries · 1979
- Diaphragm for an electrolysis cell24US 3,945,910 ASolvay & Cie · 1976
- Hydrophilic fluoropolymers18US 4,164,463 AE. I. Du Pont de Nemours and Company · 1979
- Diaphragm of hydrophilic fluoropolymers18US 4,189,369 AE. I. Du Pont de Nemours and Company · 1980