C25F 7/02
Regeneration of process liquids
C25F7/02 (Regeneration of process liquids) appears on 36 US grants and 38 published applications in this corpus.
Search patents in C25F- Granted patents
- 36
- Published applications
- 38
- Assignees
- 38
- Inventors
- 141
- Latest grant
- 14 Mar 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 3 |
| 2005 | 0 | 6 |
| 2006 | 1 | 1 |
| 2007 | 2 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 2 |
| 2014 | 2 | 4 |
| 2015 | 1 | 1 |
| 2016 | 0 | 2 |
| 2017 | 2 | 2 |
| 2018 | 3 | 3 |
| 2019 | 3 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 2 |
| 2022 | 1 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 4 |
By publication year. Applications have been published since 2001.
Recent patents
- Electrolytic treatment device for preparing plastic parts to be metallized and a method for etching plastic parts14 Mar 2023US 11,603,595 B2Coventya, Inc.
- Method of removing Cr(VI) ions from an aqueous electrolyte solution19 Jul 2022US 11,389,887 B2MTU Aero Engines AG
- Process for using persulfate in a low pH etch solution to increase aluminum foil capacitance24 Sep 2019US 10,422,050 B2Pacesetter, Inc.
- Rotor for polishing hollow tubes2 Apr 2019US 10,246,792 B2Marui Galvanizing Co., Ltd.
- Apparatus for recovery of material generated during electrochemical material removal in acidic electrolytes26 Feb 2019US 10,214,832 B2Faraday Technology Corp.
- System and method for wet treatment of a component9 Oct 2025US 2025/0313983 A1ROLLS-ROYCE plc
- Device for polishing surfaces of metal parts by means of the projection of electrically active solid particles28 Aug 2025US 2025/0270731 A1Steros Gpa Innovative, S.L.
- Method and device for recycling acidic etching waste solution through progressive electrolysis27 Feb 2025US 2025/0066947 A1
- Device and method for electropolishing by means of a conductive surface23 Jan 2025US 2025/0027226 A1Drylyte, S.L.
- Electro-assisted pickling of steel29 Dec 2022US 2022/0411952 A1
Most cited
By later US patents
- Electrodialytic conversion of complexes and salts of metal cations38US 5,264,097 A1993
- Electrolytic decontamination process and process for reproducing decontaminating electrolyte by electrodeposition and apparatuses therefore20US 4,615,776 AShinko-Pfaudler Company, Ltd. · 1986
- Electrolytic permanganate generation15US 5,062,930 AShipley Company, L.L.C. · 1991
- Electrolytic decontamination apparatus and encapsulation process13US 4,792,385 AWestinghouse Electric Corp. · 1988
- Electroplating system12US 4,781,806 A1988