C23C 4/00
Coating by spraying the coating material in the molten state
Official title: Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge (build-up welding B23K, e.g. B23K5/18, B23K9/04)
C23C4/00 (Coating by spraying the coating material in the molten state) appears on 4,743 US grants and 5,082 published applications in this corpus.
Search patents in C23C- Granted patents
- 4,743
- Published applications
- 5,082
- Assignees
- 2,000
- Inventors
- 10,146
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 37 | 0 |
| 1977 | 28 | 0 |
| 1978 | 36 | 0 |
| 1979 | 22 | 0 |
| 1980 | 35 | 0 |
| 1981 | 30 | 0 |
| 1982 | 31 | 0 |
| 1983 | 39 | 0 |
| 1984 | 31 | 0 |
| 1985 | 43 | 0 |
| 1986 | 53 | 0 |
| 1987 | 56 | 0 |
| 1988 | 46 | 0 |
| 1989 | 55 | 0 |
| 1990 | 73 | 0 |
| 1991 | 71 | 0 |
| 1992 | 69 | 0 |
| 1993 | 68 | 0 |
| 1994 | 86 | 0 |
| 1995 | 91 | 0 |
| 1996 | 65 | 0 |
| 1997 | 67 | 0 |
| 1998 | 100 | 0 |
| 1999 | 105 | 0 |
| 2000 | 96 | 0 |
| 2001 | 146 | 51 |
| 2002 | 127 | 128 |
| 2003 | 129 | 172 |
| 2004 | 124 | 199 |
| 2005 | 111 | 218 |
| 2006 | 77 | 217 |
| 2007 | 84 | 207 |
| 2008 | 87 | 196 |
| 2009 | 93 | 199 |
| 2010 | 116 | 232 |
| 2011 | 118 | 217 |
| 2012 | 116 | 165 |
| 2013 | 119 | 214 |
| 2014 | 131 | 221 |
| 2015 | 114 | 279 |
| 2016 | 131 | 297 |
| 2017 | 170 | 277 |
| 2018 | 175 | 243 |
| 2019 | 213 | 216 |
| 2020 | 186 | 211 |
| 2021 | 151 | 205 |
| 2022 | 139 | 165 |
| 2023 | 127 | 175 |
| 2024 | 137 | 156 |
| 2025 | 121 | 121 |
| 2026 | 68 | 101 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Coating composition comprising chromium and aluminum and coatings formed using the same6 Oct 2026US 12,753,468 B2Oerlikon Metco (US) Inc.
- Semiconductor manufacturing apparatus member and semiconductor manufacturing apparatus6 Oct 2026US 12,753,480 B2Toto Ltd.
- Method to produce porous segmented thermal barrier coating and a porous segmented thermal barrier coating6 Oct 2026US 12,753,481 B2Siemens Energy Global GmbH & Co. KG
- Fully-automatic aluminum thermal-spraying corrosion prevention production line based on robots and visual recognition29 Sep 2026US 12,746,631 B2Guizhou Power Grid Company Limited
- Methods of making nanopowders, nanoceramic materials and nanoceramic components15 Sep 2026US 12,735,363 B2APPLIED Materials.Inc.
- Method for joining dissimilar materials of titanium metal and solder for vacuum vessel sealing1 Oct 2026US 2026/0295703 A1Shijiazhuang Tiedao University
- Multi-component sealing coating powder material and preparation method thereof1 Oct 2026US 2026/0297705 A1BGRIMM Advanced Materials Science & Technology Co., Ltd.
- Component and Method for Producing a Component That Has a Surface With an Increased Torsional Moment1 Oct 2026US 2026/0297721 A1Bayerische Motoren Werke Aktiengesellschaft
- Surface treatment methods for cementless implantable medical devices24 Sep 2026US 2026/0284259 A1Durahip, LLC
- Multicomponent Coating24 Sep 2026US 2026/0286494 A1Concordia University
Most cited
By later US patents
- Method and apparatus for application of thermal spray coatings to engine blocks598US 5,271,967 AGeneral Motors Corporation · 1993
- Method for thermally spraying crack-free mullite coatings on ceramic-based substrates541US 6,296,909 B1General Electric Company · 2001
- Ultrasonic scalpel blade and methods of application489US 5,263,957 AUltracision, Inc. · 1993
- Halogen gas plasma-resistive members and method for producing the same, laminates, and corrosion-resistant members455US 6,783,875 B2NGK Insulators, Ltd. · 2004
- Titanium alloy blade coupler coated with nickel-chrome for ultrasonic scalpel442US 5,167,725 AUltracision, Inc. · 1992