C23C 28/343
With at least one dlc or an amorphous carbon based layer, the
Official title: {with at least one DLC or an amorphous carbon based layer, the layer being doped or not}
C23C28/343 (With at least one dlc or an amorphous carbon based layer, the) appears on 144 US grants and 192 published applications in this corpus.
Search patents in C23C- Granted patents
- 144
- Published applications
- 192
- Assignees
- 140
- Inventors
- 468
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 5 |
| 2006 | 0 | 7 |
| 2007 | 3 | 7 |
| 2008 | 2 | 7 |
| 2009 | 3 | 9 |
| 2010 | 5 | 10 |
| 2011 | 7 | 10 |
| 2012 | 5 | 2 |
| 2013 | 4 | 10 |
| 2014 | 4 | 9 |
| 2015 | 8 | 13 |
| 2016 | 9 | 9 |
| 2017 | 10 | 10 |
| 2018 | 7 | 11 |
| 2019 | 6 | 9 |
| 2020 | 9 | 19 |
| 2021 | 11 | 6 |
| 2022 | 9 | 11 |
| 2023 | 7 | 8 |
| 2024 | 7 | 7 |
| 2025 | 5 | 7 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Composite synthetic materials149US 4,960,643 A1990
- Internal combustion engines and engine components88US 4,974,498 A1990
- Valves and valve components77US 5,040,501 A1991
- Ultra high thermal performance packaging for optoelectronics devices46US 8,324,633 B2PhotonStar LED Limited · 2012
- Spark plug electrodes40US 5,132,587 A1992