C23C 8/14
Oxidising of ferrous surfaces
C23C8/14 (Oxidising of ferrous surfaces) appears on 131 US grants and 116 published applications in this corpus.
Search patents in C23C- Granted patents
- 131
- Published applications
- 116
- Assignees
- 108
- Inventors
- 407
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 3 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 3 |
| 2007 | 0 | 0 |
| 2008 | 2 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 2 | 1 |
| 2012 | 0 | 4 |
| 2013 | 1 | 7 |
| 2014 | 2 | 4 |
| 2015 | 5 | 4 |
| 2016 | 4 | 11 |
| 2017 | 8 | 6 |
| 2018 | 5 | 8 |
| 2019 | 2 | 8 |
| 2020 | 7 | 13 |
| 2021 | 11 | 12 |
| 2022 | 6 | 10 |
| 2023 | 7 | 7 |
| 2024 | 12 | 3 |
| 2025 | 6 | 3 |
| 2026 | 2 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Grain oriented electrical steel sheet and producing method thereof17 Mar 2026US 12,580,107 B2Nippon Steel Corporation
- Depositing of material by spraying precursor using supercritical fluid27 Jan 2026US 12,533,707 B2Nova Engineering Films, Inc.
- Austenitic stainless steel material7 Oct 2025US 12,435,402 B2Nippon Steel Stainless Steel Corporation
- Oriented electrical steel sheet and method for manufacturing same2 Sep 2025US 12,404,562 B2Posco
- Grain-oriented electrical steel sheet20 May 2025US 12,305,252 B2Nippon Steel Corporation
- Plated steel sheet and method for manufacturing same17 Sep 2026US 2026/0275474 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Mechanical component and method for manufacturing mechanical component13 Aug 2026US 2026/0235197 A1Komatsu Ltd.
- Coated fastener and manufacturing method for same6 Aug 2026US 2026/0226933 A1Posco
- Depositing of material by spraying precursor using supercritical fluid7 May 2026US 2026/0124639 A1Nova Engineering Films, Inc.
- Method and apparatus for removing radionuclides from radioactive metal waste30 Apr 2026US 2026/0120906 A1Doosan Enerbility Co., Ltd.
Most cited
By later US patents
- Esters of p-carbonylphenoxy-isobutyric acids45US 4,058,552 AOrchimed SA · 1977
- Process for low-temperature surface layer oxidation of a semiconductor substrate43US 4,409,260 AHughes Aircraft Company · 1983
- Passivation of carbon steel using encapsulated oxygen34US 5,489,344 AThe Babcock & Wilcox Company · 1996
- Valve seat34US 9,556,761 B2Tpr Co., Ltd. · 2017
- Enhanced oxide whisker growth on cold-rolled aluminum-containing stainless steel foil29US 4,318,828 AGeneral Motors Corporation · 1982