H01H 2033/6686
By emitting and receiving reflected sound or ultrasound signals
Official title: {by emitting and receiving reflected sound or ultrasound signals}
H01H2033/6686 (By emitting and receiving reflected sound or ultrasound signals) appears on 3 US grants and 1 published applications in this corpus.
Search patents in H01H- Granted patents
- 3
- Published applications
- 1
- Assignees
- 3
- Inventors
- 10
- Latest grant
- 10 Jun 2008
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and apparatus for the sonic detection of high pressure conditions in a vacuum switching device10 Jun 2008US 7,383,733 B2Jennings Technology
- System and method for acoustic integrity monitoring16 Jul 2002US 6,418,791 B1ABB Technology AG
- Apparatus for monitoring the vacuum of a vacuum switch14 Apr 1998US 5,739,419 ASiemens Aktiengesellschaft
Most cited
By later US patents
- Apparatus for monitoring the vacuum of a vacuum switch8US 5,739,419 ASiemens Aktiengesellschaft · 1998
- System and method for acoustic integrity monitoring8US 6,418,791 B1ABB Technology AG · 2002
- Method and apparatus for the sonic detection of high pressure conditions in a vacuum switching device4US 7,383,733 B2Jennings Technology · 2008