C23C 8/06
Solid state diffusion of only non-metal elements into metallic material surfaces: using
Official title: using gases (C23C8/36 takes precedence)
C23C8/06 (Solid state diffusion of only non-metal elements into metallic material surfaces: using) appears on 2,440 US grants and 2,493 published applications in this corpus.
Search patents in C23C- Granted patents
- 2,440
- Published applications
- 2,493
- Assignees
- 1,307
- Inventors
- 6,499
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 22 | 0 |
| 1978 | 12 | 0 |
| 1979 | 19 | 0 |
| 1980 | 27 | 0 |
| 1981 | 16 | 0 |
| 1982 | 18 | 0 |
| 1983 | 23 | 0 |
| 1984 | 25 | 0 |
| 1985 | 23 | 0 |
| 1986 | 23 | 0 |
| 1987 | 30 | 0 |
| 1988 | 24 | 0 |
| 1989 | 26 | 0 |
| 1990 | 26 | 0 |
| 1991 | 24 | 0 |
| 1992 | 28 | 0 |
| 1993 | 39 | 0 |
| 1994 | 52 | 0 |
| 1995 | 42 | 0 |
| 1996 | 36 | 0 |
| 1997 | 35 | 0 |
| 1998 | 53 | 0 |
| 1999 | 49 | 0 |
| 2000 | 46 | 0 |
| 2001 | 48 | 19 |
| 2002 | 55 | 61 |
| 2003 | 67 | 78 |
| 2004 | 42 | 93 |
| 2005 | 25 | 85 |
| 2006 | 41 | 106 |
| 2007 | 36 | 86 |
| 2008 | 36 | 86 |
| 2009 | 37 | 76 |
| 2010 | 57 | 80 |
| 2011 | 48 | 75 |
| 2012 | 58 | 91 |
| 2013 | 63 | 97 |
| 2014 | 65 | 102 |
| 2015 | 51 | 136 |
| 2016 | 85 | 168 |
| 2017 | 104 | 137 |
| 2018 | 111 | 107 |
| 2019 | 110 | 109 |
| 2020 | 99 | 129 |
| 2021 | 101 | 113 |
| 2022 | 95 | 141 |
| 2023 | 67 | 93 |
| 2024 | 103 | 86 |
| 2025 | 77 | 72 |
| 2026 | 29 | 67 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pre-oxidized, coating-free press hardened steel6 Oct 2026US 12,753,482 B2GM Global Technology Operations LLC
- Method for surface treatment by selective removal of a bonding primer on a titanium or titanium alloy substrate6 Oct 2026US 12,753,483 B2Safran Aircraft Engines
- Method to produce high corrosion and wear resistant cast iron components by using laser cladding11 Aug 2026US 12,703,047 B2Oerlikon Surface Solutions AG, PfäFfikon
- Adhesion removal method and film-forming method11 Aug 2026US 12,706,284 B2Resonac Corporation
- Fe—N—C catalysts synthesized by non-contact pyrolysis of gas phase iron11 Aug 2026US 12,706,314 B2Northeastern University
- High-pressure substrate processing apparatus8 Oct 2026US 2026/0308741 A1
- Method for the heat treatment of metallic workpieces, and work-piece produced therewith8 Oct 2026US 2026/0308742 A1ALD Vacuum Technologies GmbH
- Metal oxide or metal nitride-coated steel fasteners8 Oct 2026US 2026/0308795 A1GM Global Technology Operations LLC
- Semiconductor device and method for forming the same1 Oct 2026US 2026/0304794 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Orthopedic implants with increased hardness and increased depth of hardness and method of making17 Sep 2026US 2026/0273134 A1Waldemar Link GmbH & Co. KG
Most cited
By later US patents
- Method and equipment for growing thin films872US 5,711,811 AMikrokemia Oy · 1998
- Method of forming film on semiconductor substrate in film-forming apparatus533US 6,187,691 B1ASM Japan K .K. · 2001
- Ultrasonic scalpel blade and methods of application489US 5,263,957 AUltracision, Inc. · 1993
- Titanium alloy blade coupler coated with nickel-chrome for ultrasonic scalpel442US 5,167,725 AUltracision, Inc. · 1992
- Elimination of flow and pressure gradients in low utilization processes385US 7,955,646 B2APPLIED Materials.Inc. · 2011