H01S 5/02407
Active cooling
Official title: {Active cooling, e.g. the laser temperature is controlled by a thermo-electric cooler or water cooling}
H01S5/02407 (Active cooling) appears on 1,332 US grants and 1,451 published applications in this corpus.
Search patents in H01S- Granted patents
- 1,332
- Published applications
- 1,451
- Assignees
- 565
- Inventors
- 2,897
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 13 | 0 |
| 1990 | 7 | 0 |
| 1991 | 13 | 0 |
| 1992 | 13 | 0 |
| 1993 | 13 | 0 |
| 1994 | 8 | 0 |
| 1995 | 8 | 0 |
| 1996 | 8 | 0 |
| 1997 | 16 | 0 |
| 1998 | 21 | 0 |
| 1999 | 18 | 0 |
| 2000 | 21 | 0 |
| 2001 | 17 | 11 |
| 2002 | 28 | 60 |
| 2003 | 27 | 66 |
| 2004 | 53 | 46 |
| 2005 | 45 | 67 |
| 2006 | 55 | 48 |
| 2007 | 24 | 47 |
| 2008 | 31 | 46 |
| 2009 | 33 | 56 |
| 2010 | 34 | 35 |
| 2011 | 32 | 46 |
| 2012 | 37 | 43 |
| 2013 | 38 | 37 |
| 2014 | 43 | 54 |
| 2015 | 56 | 60 |
| 2016 | 56 | 70 |
| 2017 | 54 | 59 |
| 2018 | 54 | 84 |
| 2019 | 92 | 72 |
| 2020 | 66 | 88 |
| 2021 | 51 | 79 |
| 2022 | 47 | 70 |
| 2023 | 52 | 68 |
| 2024 | 57 | 54 |
| 2025 | 36 | 47 |
| 2026 | 29 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for cooling high power devices6 Oct 2026US 12,756,154 B2Lawrence Livermore National Security, LLC
- Corrosion resistant heatsink method, system, and apparatus22 Sep 2026US 12,744,358 B2nLIGHT, Inc.
- Method and system for using and cooling a portable high-powered laser18 Aug 2026US 12,712,334 B2Acme Solutions LLC
- Optical module11 Aug 2026US 12,706,429 B2Hisense Broadband Multimedia Technologies Co., Ltd.
- Substrate for facilitating one or more interconnections of an opto-electrical device11 Aug 2026US 12,706,437 B2Lumentum Operations LLC
- Multi-wavelength tunable laser8 Oct 2026US 2026/0312366 A1Lumentum Operations LLC
- Red green blue laser module8 Oct 2026US 2026/0312372 A1KYOCERA SLD Laser, Inc.
- Single-ended driver and bidirectional overcurrent protection for a thermoelectric cooler8 Oct 2026US 2026/0312480 A1
- Thermal isolation of laser engines in high density opto-electronic interconnection assemblies1 Oct 2026US 2026/0302723 A1Aayuna Inc.
- Laser device1 Oct 2026US 2026/0302727 A1Nichia Corporation
Most cited
By later US patents
- Semiconductor laser diode controller and laser diode biasing control method229US 5,019,769 AFinisar Corporation · 1991
- Modular microchannel heat exchanger201US 5,727,618 A1998
- Laser diode/lens assembly146US 5,615,052 A1997
- Laser diode module128US 5,065,226 AU. S. Philips Corporation · 1991
- Hybrid two-dimensional surface-emitting laser arrays121US 4,881,237 AMassachusetts Institute of Technology · 1989