H01S 5/2224
Semi-insulating semiconductors
Official title: {semi-insulating semiconductors}
H01S5/2224 (Semi-insulating semiconductors) appears on 301 US grants and 307 published applications in this corpus.
Search patents in H01S- Granted patents
- 301
- Published applications
- 307
- Assignees
- 104
- Inventors
- 522
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 1 |
| 2002 | 7 | 5 |
| 2003 | 5 | 9 |
| 2004 | 9 | 9 |
| 2005 | 10 | 29 |
| 2006 | 23 | 7 |
| 2007 | 8 | 19 |
| 2008 | 11 | 16 |
| 2009 | 13 | 13 |
| 2010 | 12 | 8 |
| 2011 | 3 | 5 |
| 2012 | 7 | 11 |
| 2013 | 9 | 17 |
| 2014 | 13 | 5 |
| 2015 | 12 | 12 |
| 2016 | 12 | 11 |
| 2017 | 12 | 12 |
| 2018 | 11 | 16 |
| 2019 | 12 | 6 |
| 2020 | 10 | 11 |
| 2021 | 6 | 24 |
| 2022 | 7 | 15 |
| 2023 | 3 | 18 |
| 2024 | 13 | 12 |
| 2025 | 18 | 4 |
| 2026 | 12 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Semiconductor laser structure for higher-order mode suppression25 Aug 2026US 12,719,234 B2FreeSpace Photonics, Inc.
- Quantum cascade laser element and quantum cascade laser device4 Aug 2026US 12,700,712 B2Hamamatsu Photonics K.K.
- Semiconductor optical device19 May 2026US 12,633,727 B2NTT, Inc.
- Semiconductor optical device and manufacturing method therefor28 Apr 2026US 12,614,893 B2LumentumRadiant GmbH
- Optical circuit21 Apr 2026US 12,607,804 B2NTT, Inc.
- Buried type optical semiconductor device30 Jul 2026US 2026/0221727 A1Lumentum Operations LLC
- Optical semiconductor device16 Jul 2026US 2026/0204876 A1Lumentum Operations LLC
- Electro-absorption modulated laser (eml) device with flared modulator9 Jul 2026US 2026/0196802 A1Applied Optoelectronics, Inc.
- Method for manufacturing semiconductor device28 May 2026US 2026/0149235 A1Mitsubishi Electric Corporation
- Semiconductor optical integrated device and method of manufacturing semiconductor optical integrated device21 May 2026US 2026/0142439 A1Mitsubishi Electric Corporation
Most cited
By later US patents
- Vertical-cavity surface-emitting lasers with intra-cavity structures163US 5,245,622 ABandgap Technology Corporation · 1993
- Semiconductor light-emitting device and method for manufacturing the same136US 7,132,691 B1Rohm Co., Ltd. · 2006
- Optical semiconductor device73US 5,825,047 ANEC Corporation · 1998
- Epitaxial lateral overgrowth of gallium nitride based semiconductive oxide selective growth mask and method for fabricating the same69US 6,320,209 B1Sharp Kabushiki Kaisha · 2001
- Transmitter photonic integrated circuit (TxPIC) chip architectures and drive systems and wavelength stabilization for TxPICs54US 7,079,715 B2Infinera Corporation · 2006