C23C 28/40
Coatings including alternating layers following a pattern, a periodic or defined repetition
Official title: {Coatings including alternating layers following a pattern, a periodic or defined repetition}
C23C28/40 (Coatings including alternating layers following a pattern, a periodic or defined repetition) appears on 694 US grants and 896 published applications in this corpus.
Search patents in C23C- Granted patents
- 694
- Published applications
- 896
- Assignees
- 363
- Inventors
- 1,691
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 13 | 0 |
| 2000 | 5 | 0 |
| 2001 | 18 | 9 |
| 2002 | 3 | 8 |
| 2003 | 12 | 12 |
| 2004 | 8 | 21 |
| 2005 | 7 | 12 |
| 2006 | 5 | 18 |
| 2007 | 16 | 25 |
| 2008 | 10 | 43 |
| 2009 | 16 | 28 |
| 2010 | 23 | 38 |
| 2011 | 28 | 24 |
| 2012 | 23 | 34 |
| 2013 | 23 | 41 |
| 2014 | 28 | 42 |
| 2015 | 30 | 55 |
| 2016 | 30 | 32 |
| 2017 | 31 | 42 |
| 2018 | 29 | 54 |
| 2019 | 34 | 45 |
| 2020 | 42 | 66 |
| 2021 | 44 | 61 |
| 2022 | 57 | 53 |
| 2023 | 35 | 43 |
| 2024 | 47 | 52 |
| 2025 | 46 | 32 |
| 2026 | 14 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cutting tool25 Aug 2026US 12,716,123 B2Sumitomo Electric Industries, Ltd.
- Low-transmission-loss copper-based composite material and preparation method thereof, PCB, and electronic component30 Jun 2026US 12,668,890 B2Songshan Lake Materials Laboratory
- Anti-cavitation damping composite metal structure for flow passage component2 Jun 2026US 12,644,189 B2Hohai University
- Coated cutting tool26 May 2026US 12,636,707 B2AB Sandvik Coromant
- Method of producing a coated cutting tool and a coated cutting tool5 May 2026US 12,617,022 B2AB Sandvik Coromant
- Coated cutting tool13 Aug 2026US 2026/0233312 A1MOLDINO Tool Engineering, Ltd.
- Surface-coated cutting tool13 Aug 2026US 2026/0234784 A1Mitsubishi Materials Corporation
- Coated cutting tool16 Jul 2026US 2026/0199986 A1AB Sandvik Coromant
- Forming tools coated with kappa-alumina12 Mar 2026US 2026/0071319 A1Oerlikon Surface Solutions AG, PfäFfikon
- Optical filter29 Jan 2026US 2026/0029563 A1Viavi Solutions Inc.
Most cited
By later US patents
- Magnetic recording media with antiferromagnetically coupled ferromagnetic films as the recording layer110US 6,280,813 B1International Business Machines Corporation · 2001
- Thermal barrier coating system with intermediate phase bondcoat94US 5,716,720 AHowmet Corporation · 1998
- Layered film made of ultrafine particles and a hard composite material for tools possessing the film93US 5,700,551 ASumitomo Electric Industries, Ltd. · 1997
- DLC coating system and process and apparatus for making coating system73US 6,740,393 B1Balzers Aktiengesellschaft · 2004
- Tungsten carbide coating and method for producing the same68US 6,800,383 B1Hardide Limited · 2004