H01S 5/02469
Passive cooling
Official title: {Passive cooling, e.g. where heat is removed by the housing as a whole or by a heat pipe without any active cooling element like a TEC}
H01S5/02469 (Passive cooling) appears on 923 US grants and 1,172 published applications in this corpus.
Search patents in H01S- Granted patents
- 923
- Published applications
- 1,172
- Assignees
- 435
- Inventors
- 2,219
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 11 | 3 |
| 2002 | 5 | 12 |
| 2003 | 6 | 16 |
| 2004 | 10 | 14 |
| 2005 | 14 | 19 |
| 2006 | 11 | 14 |
| 2007 | 9 | 21 |
| 2008 | 7 | 17 |
| 2009 | 9 | 21 |
| 2010 | 18 | 9 |
| 2011 | 14 | 19 |
| 2012 | 12 | 15 |
| 2013 | 11 | 40 |
| 2014 | 28 | 42 |
| 2015 | 41 | 51 |
| 2016 | 47 | 65 |
| 2017 | 55 | 66 |
| 2018 | 63 | 77 |
| 2019 | 86 | 105 |
| 2020 | 81 | 99 |
| 2021 | 75 | 97 |
| 2022 | 64 | 102 |
| 2023 | 61 | 95 |
| 2024 | 59 | 69 |
| 2025 | 54 | 42 |
| 2026 | 40 | 42 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ensemble light source6 Oct 2026US 12,756,150 B1KYOCERA SLD Laser, Inc.
- Light emitting element29 Sep 2026US 12,749,868 B2Sony Group Corporation
- Corrosion resistant heatsink method, system, and apparatus22 Sep 2026US 12,744,358 B2nLIGHT, Inc.
- Light-emitting device including semiconductor laser element encapsulated by base and cover with two lead terminals penetrating through lateral wall of base15 Sep 2026US 12,738,710 B2Nichia Corporation
- Patterning of diode/substrate interface to reduce thermal lensing1 Sep 2026US 12,726,004 B2Lawrence Livermore National Security, LLC
- Red green blue laser module8 Oct 2026US 2026/0312372 A1KYOCERA SLD Laser, Inc.
- Package for red-green-blue laser diodes1 Oct 2026US 2026/0302719 A1KYOCERA Corporation
- Thermal isolation of laser engines in high density opto-electronic interconnection assemblies1 Oct 2026US 2026/0302723 A1Aayuna Inc.
- Semiconductor element mounting substrate17 Sep 2026US 2026/0280225 A1Niterra Co., Ltd.
- Heat management of semiconductor devices using substantially two-dimensional materials17 Sep 2026US 2026/0280227 A1Mellanox Technologies, Ltd.
Most cited
By later US patents
- Multiple wavelengths semiconductor laser device131US 7,483,468 B2Kabushiki Kaisha Toshiba · 2009
- Optical illuminator129US 8,675,706 B2Princeton Optronics, Inc. · 2014
- Lidar systems including a gallium and nitrogen containing laser light source120US 10,222,474 B1Soraa Laser Diode, Inc. · 2019
- Fiber laser with free-space components109US 10,003,168 B1Luminar Technologies, Inc. · 2018
- Method for making cooling structures for directly cooling an active layer of a semiconductor chip93US 5,376,587 AInternational Business Machines Corporation · 1994