C23F 13/20
Conducting electric current to electrodes
C23F13/20 (Conducting electric current to electrodes) appears on 91 US grants and 98 published applications in this corpus.
Search patents in C23F- Granted patents
- 91
- Published applications
- 98
- Assignees
- 72
- Inventors
- 199
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 4 |
| 2006 | 2 | 1 |
| 2007 | 3 | 1 |
| 2008 | 2 | 2 |
| 2009 | 1 | 5 |
| 2010 | 2 | 0 |
| 2011 | 4 | 3 |
| 2012 | 0 | 7 |
| 2013 | 3 | 4 |
| 2014 | 4 | 5 |
| 2015 | 6 | 9 |
| 2016 | 3 | 5 |
| 2017 | 7 | 3 |
| 2018 | 3 | 5 |
| 2019 | 7 | 11 |
| 2020 | 5 | 9 |
| 2021 | 3 | 3 |
| 2022 | 2 | 2 |
| 2023 | 6 | 2 |
| 2024 | 5 | 9 |
| 2025 | 1 | 6 |
| 2026 | 5 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device for the cathodic protection of metal components of boats8 Sep 2026US 12,729,444 B2
- Propeller arrangement in a cathodic protection system26 May 2026US 12,637,774 B2AB Volvo Penta
- Gravity-contact sacrificial anode12 May 2026US 12,624,458 B2Petroleo Brasileiro S.A. - Petrobras
- Shaft contact device5 May 2026US 12,620,300 B2Waynedd Enterprises Ltd
- Cathodic protection of concrete using an anode attached to an outer surface27 Jan 2026US 12,534,812 B2Vector Corrosion Technologies Ltd.
- Method and anode mount for mounting an iccp anode on an offshore construction18 Jun 2026US 2026/0168110 A1
- Fpso external anti-corrosion device6 Nov 2025US 2025/0341000 A1Dalian Kingmile Marine Technology Co.,Ltd.
- Universal cathodic protection system11 Sep 2025US 2025/0283224 A1Petroleo Brasileiro S.A. - Petrobras
- Protection system for pipelines28 Aug 2025US 2025/0270708 A1Dehn SE
- Sealed Glass Ceramic Powered Anode Assemblage and Method For Impressed Current Cathodic Protection29 May 2025US 2025/0171908 A1
Most cited
By later US patents
- Subsea clamping apparatus69US 4,705,331 AWayne Graham & Associates International, Inc. · 1987
- Cathodic lead insulator41US 7,294,913 B2Chase Corporation · 2007
- Connector for use in cathodic protection and method of use37US 6,193,857 B1Foseco International Limited · 2001
- Apparatus for cathodically protecting reinforcing members and method for installing same22US 4,812,212 AHarco Technologies Corporation · 1989
- Cathodic protection system for a water heater tank17US 4,786,383 AA. O. Smith Corporation · 1988