G01J 2009/0273
Ring interferometer
Official title: {Ring interferometer}
G01J2009/0273 (Ring interferometer) appears on 5 US grants and 3 published applications in this corpus.
Search patents in G01J- Granted patents
- 5
- Published applications
- 3
- Assignees
- 4
- Inventors
- 7
- Latest grant
- 20 Sep 2011
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Establishing and maintaining focus in segmented-optic telescopes20 Sep 2011US 8,023,117 B2Venture Ad Astra, LLC
- Ring optical interferometer4 Jan 2005US 6,837,586 B2
- Interferometric technique for measurement of nonreciprocal optical effects in a sample10 Aug 1993US 5,235,404 AThe Board of Trustees of the Leland Stanford Junior University, Stanford University
- Method and device for detecting propagation time variations in a ring interferometer and application thereof to wave length control3 Oct 1989US 4,871,254 AThomson-CSF
- Wavefront sensor17 May 1988US 4,744,658 ARockwell International Corporation
Most cited
By later US patents
- Wavefront sensor22US 4,744,658 ARockwell International Corporation · 1988
- Method and device for detecting propagation time variations in a ring interferometer and application thereof to wave length control6US 4,871,254 AThomson-CSF · 1989
- Interferometric technique for measurement of nonreciprocal optical effects in a sample5US 5,235,404 AThe Board of Trustees of the Leland Stanford Junior University, Stanford University · 1993
- Ring optical interferometer3US 6,837,586 B22005
- Establishing and maintaining focus in segmented-optic telescopes3US 8,023,117 B2Venture Ad Astra, LLC · 2011