C04B 41/5338
Etching
Official title: {Etching (for obtaining decorative effects B44C1/22; etching of specific electronic compounds, see the relevant places, e.g. etching of semiconductor bodies H10P50/00)}
C04B41/5338 (Etching) appears on 305 US grants and 175 published applications in this corpus.
Search patents in C04B- Granted patents
- 305
- Published applications
- 175
- Assignees
- 202
- Inventors
- 732
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 6 | 0 |
| 1984 | 5 | 0 |
| 1985 | 9 | 0 |
| 1986 | 7 | 0 |
| 1987 | 6 | 0 |
| 1988 | 6 | 0 |
| 1989 | 8 | 0 |
| 1990 | 5 | 0 |
| 1991 | 13 | 0 |
| 1992 | 0 | 0 |
| 1993 | 12 | 0 |
| 1994 | 17 | 0 |
| 1995 | 10 | 0 |
| 1996 | 3 | 0 |
| 1997 | 8 | 0 |
| 1998 | 6 | 0 |
| 1999 | 10 | 0 |
| 2000 | 5 | 0 |
| 2001 | 10 | 7 |
| 2002 | 7 | 5 |
| 2003 | 6 | 6 |
| 2004 | 7 | 3 |
| 2005 | 3 | 5 |
| 2006 | 2 | 4 |
| 2007 | 4 | 3 |
| 2008 | 0 | 6 |
| 2009 | 3 | 6 |
| 2010 | 5 | 1 |
| 2011 | 6 | 5 |
| 2012 | 1 | 2 |
| 2013 | 3 | 2 |
| 2014 | 4 | 6 |
| 2015 | 4 | 10 |
| 2016 | 7 | 1 |
| 2017 | 1 | 4 |
| 2018 | 4 | 4 |
| 2019 | 5 | 10 |
| 2020 | 9 | 19 |
| 2021 | 8 | 11 |
| 2022 | 12 | 9 |
| 2023 | 3 | 11 |
| 2024 | 12 | 9 |
| 2025 | 10 | 18 |
| 2026 | 13 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for controlling subcritical fracturing via chemical complexation reactions at the crack tip4 Aug 2026US 12,698,443 B1National Technology & Engineering Solutions of Sandia, LLC
- Member for semiconductor manufacturing apparatus23 Jun 2026US 12,665,527 B2NGK Insulators, Ltd.
- Organometallic compounds for the deposition of high purity tin oxide and dry etching of the tin oxide films and deposition reactors16 Jun 2026US 12,655,164 B2Seastar Chemicals Ulc
- Thermally guided chemical etching of a substrate and real-time monitoring thereof9 Jun 2026US 12,652,988 B2Momentum Optics LLC
- Cementitious solids with decorative surface patterns and methods of making the same2 Jun 2026US 12,643,817 B1
- Mixtures for tiles with decorative surface patterns1 Oct 2026US 2026/0296961 A1
- Method for manufacturing tiles with decorative surface patterns1 Oct 2026US 2026/0296962 A1
- Precipitation of cryolite in the max/mxene etching process - recovery of flouorine and reduction of wastewater10 Sep 2026US 2026/0265072 A1Drexel University
- Superabrasive compact surface treatments, coatings, reclaiming techniques, and related devices, methods, and systems6 Aug 2026US 2026/0225964 A1US Synthetic Corporation
- Producing a ceramic component16 Jul 2026US 2026/0202799 A1Rolex SA
Most cited
By later US patents
- Process for converting a metal carbide to carbon by etching in halogens566US 6,579,833 B1The Board of Trustees of the University of Illinois · 2003
- Method for removing a film on a silicon layer surface421US 5,022,961 ADainippon Screen Mfg.Co., Ltd. · 1991
- Treatment of etching chambers using activated cleaning gas291US 6,379,575 B1APPLIED Materials.Inc. · 2002
- Methods and apparatus for etching semiconductor wafers226US 6,004,884 ALam Research Corporation · 1999
- Polycrystalline diamond member and method of making the same185US 6,344,149 B12002