G02F 1/215
Michelson type
Official title: {Michelson type}
G02F1/215 (Michelson type) appears on 31 US grants and 27 published applications in this corpus.
Search patents in G02F- Granted patents
- 31
- Published applications
- 27
- Assignees
- 27
- Inventors
- 69
- Latest grant
- 28 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 3 |
| 2011 | 1 | 1 |
| 2012 | 0 | 2 |
| 2013 | 2 | 1 |
| 2014 | 4 | 1 |
| 2015 | 1 | 0 |
| 2016 | 1 | 3 |
| 2017 | 0 | 2 |
| 2018 | 2 | 0 |
| 2019 | 2 | 3 |
| 2020 | 3 | 3 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- Frequency shifter for heterodyne interferometry measurements and device for heterodyne interferometry measurements having such a frequency shifter28 Jan 2025US 12,209,861 B2Chamartin Laboratories LLC
- Optical device for heterodyne interferometry31 Dec 2024US 12,181,279 B2Chamartin Laboratories LLC
- Preparing a structured optical beam for human observation31 Jan 2023US 11,564,562 B2Quantum Valley Investment Fund LP
- Control of dual phase tuners13 Jul 2021US 11,061,260 B2International Business Machines Corporation
- Fourier-transform interferometer using meta surface29 Dec 2020US 10,877,349 B2Samsung Electronics Co., Ltd.
- Optical device for heterodyne interferometry2 Oct 2025US 2025/0305811 A1Chamartin Laboratories LLC
- Frequency Shifter for Heterodyne Interferometry Measurements and Device for Heterodyne Interferometry Measurements Having Such a Frequency Shifter31 Jul 2025US 2025/0244121 A1Chamartin Laboratories LLC
- Interferometric photonic sensor3 Apr 2025US 2025/0110379 A1
- Frequency shifter for heterodyne interferometry measurements and device for heterodyne interferometry measurements having such a frequency shifter16 Feb 2023US 2023/0046152 A1Chamartin Laboratories LLC
- Optical device for heterodyne interferometry19 Jan 2023US 2023/0019946 A1Chamartin Laboratories LLC
Most cited
By later US patents
- Optical modulation apparatus and measurement method198US 5,091,983 A1992
- Tunable bragg gratings and devices employing the same55US 6,221,565 B1University of New Mexico · 2001
- Apparatus for shaping binary optical signals, and use thereof to modify said signals19US 5,781,326 AAlcatel Alsthom Compagnie Generale d Electricite · 1998
- Wavelength converter for binary optical signals19US 5,978,129 AAlcatel · 1999
- Tunable bragg grating and devices employing the same15US 6,534,248 B2Science & Technology Corporation @ UNM · 2003