C25F 3/02
Etching
C25F3/02 (Etching) appears on 995 US grants and 907 published applications in this corpus.
Search patents in C25F- Granted patents
- 995
- Published applications
- 907
- Assignees
- 566
- Inventors
- 2,372
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 7 | 0 |
| 1978 | 16 | 0 |
| 1979 | 16 | 0 |
| 1980 | 12 | 0 |
| 1981 | 17 | 0 |
| 1982 | 14 | 0 |
| 1983 | 22 | 0 |
| 1984 | 26 | 0 |
| 1985 | 18 | 0 |
| 1986 | 21 | 0 |
| 1987 | 14 | 0 |
| 1988 | 11 | 0 |
| 1989 | 7 | 0 |
| 1990 | 12 | 0 |
| 1991 | 12 | 0 |
| 1992 | 18 | 0 |
| 1993 | 13 | 0 |
| 1994 | 19 | 0 |
| 1995 | 14 | 0 |
| 1996 | 15 | 0 |
| 1997 | 14 | 0 |
| 1998 | 21 | 0 |
| 1999 | 11 | 0 |
| 2000 | 10 | 0 |
| 2001 | 17 | 5 |
| 2002 | 12 | 15 |
| 2003 | 11 | 30 |
| 2004 | 18 | 43 |
| 2005 | 19 | 49 |
| 2006 | 29 | 45 |
| 2007 | 14 | 38 |
| 2008 | 14 | 24 |
| 2009 | 25 | 36 |
| 2010 | 15 | 27 |
| 2011 | 17 | 36 |
| 2012 | 17 | 30 |
| 2013 | 22 | 34 |
| 2014 | 24 | 24 |
| 2015 | 33 | 47 |
| 2016 | 25 | 50 |
| 2017 | 35 | 38 |
| 2018 | 36 | 49 |
| 2019 | 26 | 45 |
| 2020 | 54 | 47 |
| 2021 | 28 | 44 |
| 2022 | 32 | 38 |
| 2023 | 32 | 32 |
| 2024 | 30 | 36 |
| 2025 | 20 | 21 |
| 2026 | 19 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for producing a cyclically stable silicon anode for secondary batteries, and silicon anode for secondary batteries15 Sep 2026US 12,738,476 B2Christian-Albrechts-Universitaet zu Kiel
- Grain-oriented electrical steel sheet and manufacturing method therefor25 Aug 2026US 12,716,134 B2Nippon Steel Corporation
- Stainless steel for separation plate of polymer electrolyte membrane fuel cell having improved hydrophilic property and corrosion resistance, and manufacturing method therefor25 Aug 2026US 12,719,063 B2Posco
- Wafer holder and method21 Jul 2026US 12,686,938 B2Poro Technologies Ltd
- Electrode, use thereof, battery, and process for producing an electrode30 Jun 2026US 12,671,077 B2RENA Technologies GmbH
- Lead electro-etching before plating to mitigate burr1 Oct 2026US 2026/0304630 A1
- Substrate processing apparatus24 Sep 2026US 2026/0286566 A1SCREEN Holdings Co., Ltd.
- Substrate processing apparatus and substrate processing method24 Sep 2026US 2026/0286567 A1SCREEN Holdings Co., Ltd.
- Grain-oriented electrical steel sheet and manufacturing method therefor10 Sep 2026US 2026/0265920 A1Nippon Steel Corporation
- Porous metal structures incorporating nanoparticles13 Aug 2026US 2026/0232876 A1Yissum Research Development Company of the Hebrew University of Jerusalem
Most cited
By later US patents
- Prosthetic interbody spacer363US 6,482,233 B1Synthes USA, LLC · 2002
- Electrochemical metal removal technique for planarization of surfaces255US 5,567,300 AIBM Corporation · 1996
- Three dimensional microfabrication by localized electrodeposition and etching232US 5,641,391 A1997
- Method and apparatus for spatially uniform electropolishing and electrolytic etching211US 5,096,550 AThe United States of America as represented by the United States Department of Energy · 1992
- Method for producing semiconductor particles175US 5,690,807 AMassachusetts Institute of Technology · 1997