H01S 5/3072
Diffusion blocking layer, i.e. a special layer blocking diffusion of dopants
Official title: {Diffusion blocking layer, i.e. a special layer blocking diffusion of dopants}
H01S5/3072 (Diffusion blocking layer, i.e. a special layer blocking diffusion of dopants) appears on 102 US grants and 115 published applications in this corpus.
Search patents in H01S- Granted patents
- 102
- Published applications
- 115
- Assignees
- 60
- Inventors
- 234
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 2 |
| 2002 | 5 | 10 |
| 2003 | 9 | 12 |
| 2004 | 9 | 14 |
| 2005 | 6 | 10 |
| 2006 | 10 | 4 |
| 2007 | 5 | 11 |
| 2008 | 7 | 12 |
| 2009 | 6 | 7 |
| 2010 | 9 | 7 |
| 2011 | 3 | 4 |
| 2012 | 3 | 3 |
| 2013 | 2 | 2 |
| 2014 | 2 | 1 |
| 2015 | 3 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 2 | 5 |
| 2021 | 1 | 3 |
| 2022 | 2 | 2 |
| 2023 | 3 | 1 |
| 2024 | 1 | 1 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
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- Optoelectric device with a very low series resistance52US 5,306,923 AFrance Telecom · 1994