H01H 51/32
Frequency relays
Official title: Frequency relays; Mechanically-tuned relays
H01H51/32 (Frequency relays) appears on 3 US grants and 2 published applications in this corpus.
Search patents in H01H- Granted patents
- 3
- Published applications
- 2
- Assignees
- 4
- Inventors
- 6
- Latest grant
- 18 Oct 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Coaxial RF switch with confinement flexures and method of making same18 Oct 2022US 11,476,552 B2Magvention
- Reconfigurable device for terahertz (THz) and infrared (IR) filtering and modulation2 Jan 2018US 9,859,079 B2The Regents of the University of Michigan
- Electromechanical relay13 Apr 1999US 5,894,255 AAllegheny Ludlum Corporation
Most cited
By later US patents