C23C 28/00
Coating for obtaining at least two superposed coatings either by methods not
Official title: Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
C23C28/00 (Coating for obtaining at least two superposed coatings either by methods not) appears on 5,757 US grants and 7,352 published applications in this corpus.
Search patents in C23C- Granted patents
- 5,757
- Published applications
- 7,352
- Assignees
- 2,318
- Inventors
- 13,950
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 6 | 0 |
| 1978 | 9 | 0 |
| 1979 | 1 | 0 |
| 1980 | 10 | 0 |
| 1981 | 10 | 0 |
| 1982 | 8 | 0 |
| 1983 | 8 | 0 |
| 1984 | 17 | 0 |
| 1985 | 25 | 0 |
| 1986 | 20 | 0 |
| 1987 | 24 | 0 |
| 1988 | 23 | 0 |
| 1989 | 27 | 0 |
| 1990 | 37 | 0 |
| 1991 | 22 | 0 |
| 1992 | 22 | 0 |
| 1993 | 25 | 0 |
| 1994 | 29 | 0 |
| 1995 | 35 | 0 |
| 1996 | 45 | 0 |
| 1997 | 55 | 0 |
| 1998 | 79 | 0 |
| 1999 | 99 | 0 |
| 2000 | 99 | 0 |
| 2001 | 142 | 48 |
| 2002 | 130 | 114 |
| 2003 | 135 | 180 |
| 2004 | 139 | 192 |
| 2005 | 111 | 187 |
| 2006 | 89 | 218 |
| 2007 | 100 | 216 |
| 2008 | 98 | 238 |
| 2009 | 96 | 266 |
| 2010 | 140 | 300 |
| 2011 | 150 | 229 |
| 2012 | 151 | 272 |
| 2013 | 153 | 291 |
| 2014 | 176 | 298 |
| 2015 | 197 | 339 |
| 2016 | 203 | 374 |
| 2017 | 224 | 340 |
| 2018 | 248 | 380 |
| 2019 | 298 | 340 |
| 2020 | 285 | 469 |
| 2021 | 307 | 417 |
| 2022 | 318 | 411 |
| 2023 | 274 | 378 |
| 2024 | 348 | 377 |
| 2025 | 341 | 282 |
| 2026 | 157 | 196 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C23C 28/30Coatings combining at least one metallic layer and at least one inorganic2,289
- C23C 28/04Only coatings of inorganic non-metallic material1,875
- C23C 28/02Only coatings only including layers of metallic material1,410
- C23C 28/40Coatings including alternating layers following a pattern, a periodic or defined repetition694
Recent patents
- Surface-coated cutting tool29 Sep 2026US 12,746,604 B2Mitsubishi Materials Corporation
- Steel sheet for hot stamping29 Sep 2026US 12,747,484 B2Nippon Steel Corporation
- Steel sheet for hot press formed member22 Sep 2026US 12,741,447 B2Posco
- Two-coat single cure powder coating15 Sep 2026US 12,734,549 B2The Sherwin-Williams Company
- Hard coating for cutting tools with excellent wear resistance15 Sep 2026US 12,734,584 B2Korloy Inc.
- Hydrophilic antimicrobial diamond coating8 Oct 2026US 2026/0308049 A1United States Department of Energy
- Workpiece having a hard material layer8 Oct 2026US 2026/0308767 A1Voestalpine Eifeler Vacotec GmbH
- Method for the Corrosion-Protective Pretreatment of Components Comprising Surfaces of Zinc-Magnesium Hot-Dip Coated Steel8 Oct 2026US 2026/0308768 A1Henkel AG & Co. KGaA
- Method of manufacture of porous coated metallic substrate assemblies8 Oct 2026US 2026/0308769 A1Mott Corporation
- Razor blade comprising parylene c and parylene n1 Oct 2026US 2026/0295877 A1BIC Violex Single Member S.A.
Most cited
By later US patents
- Layered ferromagnetic coated conductor thermal surgical tool884US 10,149,712 B2Domain Surgical, Inc. · 2018
- Semiconductor fabrication apparatus and fabrication method thereof530US 6,503,562 B1APPLIED Materials.Inc. · 2003
- Thermal transfer coating486US 7,695,808 B23M Innovative Properties Company · 2010
- Low contamination components for semiconductor processing apparatus and methods for making components368US 8,318,327 B2Lam Research Corporation · 2012
- Thermal/environmental barrier coating system for silicon-based materials284US 5,985,470 AGeneral Electric Company · 1999