B81B 2201/045
Optical switches
B81B2201/045 (Optical switches) appears on 198 US grants and 220 published applications in this corpus.
Search patents in B81B- Granted patents
- 198
- Published applications
- 220
- Assignees
- 116
- Inventors
- 432
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 7 |
| 2002 | 12 | 30 |
| 2003 | 15 | 26 |
| 2004 | 26 | 19 |
| 2005 | 15 | 14 |
| 2006 | 15 | 12 |
| 2007 | 7 | 7 |
| 2008 | 5 | 7 |
| 2009 | 8 | 9 |
| 2010 | 9 | 6 |
| 2011 | 9 | 3 |
| 2012 | 5 | 10 |
| 2013 | 5 | 1 |
| 2014 | 5 | 4 |
| 2015 | 7 | 7 |
| 2016 | 4 | 5 |
| 2017 | 3 | 4 |
| 2018 | 3 | 4 |
| 2019 | 1 | 6 |
| 2020 | 12 | 8 |
| 2021 | 3 | 3 |
| 2022 | 7 | 6 |
| 2023 | 5 | 7 |
| 2024 | 5 | 9 |
| 2025 | 5 | 5 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrostatic MEMS micromirror13 Jan 2026US 12,523,863 B2Huawei Technologies Co., Ltd.
- Actuator device20 May 2025US 12,304,806 B2Hamamatsu Photonics K.K.
- Method for manufacturing mirror device1 Apr 2025US 12,264,065 B2Hamamatsu Photonics K.K.
- MEMS device with damping fluid vertically sandwiched between moving and non-moving structures4 Feb 2025US 12,215,020 B2Mirrorcle Technologies, Inc.
- Fabrication of MEMS device with automated dispensing of damping fluid and viscosity control14 Jan 2025US 12,195,326 B2Mirrocle Technologies Inc.
- Mems rotating micro actuators9 Jul 2026US 2026/0193078 A1Preciseley Microtechnology Corp.
- Devices, systems, and methods including micro- or nano- cantilever structures11 Dec 2025US 2025/0376369 A1Massachusetts Institute of Technology
- Reliable and Robust Zero Power Micro-Mechanical Switch7 Aug 2025US 2025/0250159 A1Zepsor Technologies, Inc.
- Actuator device7 Aug 2025US 2025/0250160 A1Hamamatsu Photonics K.K.
- Micro-electromechanical system (mems) mirror comb drive12 Jun 2025US 2025/0187905 A1Lumentum Operations LLC
Most cited
By later US patents
- Bistable microelectromechanical actuator511US 5,867,302 ASandia Corporation · 1999
- Multi-axis magnetically actuated device125US 6,388,789 B1The Charles Stark Draper Laboratory, Inc. · 2002
- Direct acting vertical thermal actuator with controlled bending112US 6,531,947 B13M Innovative Properties Company · 2003
- Methods for forming and releasing microelectromechanical structures96US 6,960,305 B2Reflectivity, INC · 2005
- Micromachined members coupled for relative rotation by hinges87US 6,392,220 B1XROS, Inc. · 2002