H01S 5/028
Coatings
Official title: Coatings {; Treatment of the laser facets, e.g. etching, passivation layers or reflecting layers}
H01S5/028 (Coatings) appears on 1,594 US grants and 1,694 published applications in this corpus.
Search patents in H01S- Granted patents
- 1,594
- Published applications
- 1,694
- Assignees
- 516
- Inventors
- 2,861
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 7 | 0 |
| 1987 | 3 | 0 |
| 1988 | 13 | 0 |
| 1989 | 22 | 0 |
| 1990 | 15 | 0 |
| 1991 | 15 | 0 |
| 1992 | 15 | 0 |
| 1993 | 19 | 0 |
| 1994 | 19 | 0 |
| 1995 | 13 | 0 |
| 1996 | 18 | 0 |
| 1997 | 19 | 0 |
| 1998 | 20 | 0 |
| 1999 | 21 | 0 |
| 2000 | 14 | 0 |
| 2001 | 23 | 10 |
| 2002 | 30 | 38 |
| 2003 | 34 | 46 |
| 2004 | 51 | 71 |
| 2005 | 29 | 63 |
| 2006 | 43 | 50 |
| 2007 | 35 | 52 |
| 2008 | 32 | 65 |
| 2009 | 46 | 59 |
| 2010 | 63 | 66 |
| 2011 | 45 | 58 |
| 2012 | 42 | 56 |
| 2013 | 54 | 54 |
| 2014 | 48 | 42 |
| 2015 | 66 | 54 |
| 2016 | 61 | 65 |
| 2017 | 61 | 57 |
| 2018 | 56 | 63 |
| 2019 | 82 | 102 |
| 2020 | 74 | 100 |
| 2021 | 67 | 112 |
| 2022 | 59 | 92 |
| 2023 | 78 | 95 |
| 2024 | 73 | 100 |
| 2025 | 59 | 72 |
| 2026 | 34 | 52 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01S 5/0287Facet reflectivity632
- H01S 5/0282Passivation layers or treatments296
- H01S 5/0281Coatings made of semiconductor materials115
- H01S 5/0286Coatings with a reflectivity that is not constant over the facets88
- H01S 5/0285Coatings with a controllable reflectivity35
- H01S 5/0284Coatings with a temperature dependent reflectivity13
Recent patents
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- Quantum cascade laser element, quantum cascade laser device, and method for manufacturing quantum cascade laser element25 Aug 2026US 12,719,240 B2Hamamatsu Photonics K.K.
- Tunable hybrid III-V/IV laser sensor system-on-a chip for real-time monitoring of a blood constituent concentration level18 Aug 2026US 12,708,293 B2Brolis Sensor Technology, UAB et al.
- Semiconductor laser with optimized facet coatings24 Sep 2026US 2026/0291171 A1
- Edge-emitting laser diode, related apparatuses, data storage devices, systems, and methods24 Sep 2026US 2026/0291184 A1Seagate Technology LLC
- Heat management of semiconductor devices using substantially two-dimensional materials17 Sep 2026US 2026/0280227 A1Mellanox Technologies, Ltd.
- Surface emitting laser, method for fabricating surface emitting laser10 Sep 2026US 2026/0269568 A1Sanoh Industrial Co., Ltd.
- Two-dimensional periodically index-coupled fabry perot laser ("2d pic-fl")27 Aug 2026US 2026/0254200 A1
Most cited
By later US patents
- Semiconductor laser device249US 7,555,025 B2Mitsubishi Electric Corporation · 2009
- Growth structures and method for forming laser diodes on {30-31} or off cut gallium and nitrogen containing substrates237US 8,351,478 B2Soraa, Inc. · 2013
- Growth structures and method for forming laser diodes on {20-21} or off cut gallium and nitrogen containing substrates234US 8,355,418 B2Soraa, Inc. · 2013
- Modified wurtzite structure oxide compounds as substrates for III-V nitride compound semiconductor epitaxial thin film growth216US 5,625,202 AUniversity of Central Florida · 1997
- Light-emitting device214US 8,017,932 B2Rohm Co., Ltd. · 2011