C04B 41/72
Involving the removal of part of the materials of the treated articles
Official title: involving the removal of part of the materials of the treated articles, e.g. etching
C04B41/72 (Involving the removal of part of the materials of the treated articles) appears on 88 US grants and 79 published applications in this corpus.
Search patents in C04B- Granted patents
- 88
- Published applications
- 79
- Assignees
- 60
- Inventors
- 166
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 2 |
| 2005 | 3 | 1 |
| 2006 | 1 | 5 |
| 2007 | 0 | 2 |
| 2008 | 1 | 3 |
| 2009 | 2 | 2 |
| 2010 | 2 | 4 |
| 2011 | 1 | 5 |
| 2012 | 2 | 3 |
| 2013 | 0 | 2 |
| 2014 | 4 | 4 |
| 2015 | 2 | 4 |
| 2016 | 0 | 4 |
| 2017 | 2 | 4 |
| 2018 | 3 | 2 |
| 2019 | 2 | 2 |
| 2020 | 4 | 6 |
| 2021 | 4 | 7 |
| 2022 | 3 | 3 |
| 2023 | 2 | 2 |
| 2024 | 5 | 2 |
| 2025 | 4 | 5 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Removal of ions from a bulk source by electropotential ion transport using a host receptor matrix64US 5,489,370 AIonex · 1996
- Glass chip lithocrete and method of use of same50US 6,033,146 A2000
- Remediation of a bulk source by electropotential ion transport using a host receptor matrix34US 5,405,509 AIonex · 1995
- Patterned artificial marble slab32US 8,702,886 B2Caesarstone Sdot-Yam Ltd. · 2014
- Acid soluble coating for well screens30US 4,202,411 ABaker International Corporation · 1980