Cheng; Yihao
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cheng; Yihao.The latest application filed is for "lighting apparatus and method for surface lighting using leds".
- Cheng; Yihao - Ottawa CA
- Cheng; Yihao - Nepean CA
- Cheng; Yihao - Kanata CA
| Patent | Date |
|---|---|
| Lighting Apparatus And Method For Surface Lighting Using Leds App 20140313708 - Cheng; Yihao | 2014-10-23 |
| Micro-optic delay element for use in a time division multiplexed system Grant 6,819,872 - Farries , et al. November 16, 2 | 2004-11-16 |
| Polarization beam splitter or combiner Grant 6,711,311 - Delisle , et al. March 23, 2 | 2004-03-23 |
| Bi-directional circulator Grant 6,657,785 - Ducellier , et al. December 2, 2 | 2003-12-02 |
| Micro-optic delay element for use in a time-division multiplexed system App 20030194237 - Farries, Mark ; et al. | 2003-10-16 |
| Micro-optic delay element for use in a polarization multiplexed system Grant 6,607,313 - Farries , et al. August 19, 2 | 2003-08-19 |
| Bi-directional isolator Grant 6,587,266 - Tai , et al. July 1, 2 | 2003-07-01 |
| Optical coupling system Grant 6,393,179 - Cheng , et al. May 21, 2 | 2002-05-21 |
| Bi-directional circulator App 20020024730 - Ducellier, Thomas ; et al. | 2002-02-28 |
| Bi-directional isolator App 20010053022 - Tai, Kuochou ; et al. | 2001-12-20 |
| Polarization beam splitter or combiner App 20010036330 - Delisle, Vincent ; et al. | 2001-11-01 |
| Optical coupler arrangement Grant 6,292,604 - Cheng September 18, 2 | 2001-09-18 |
| Optical filter Grant 6,219,481 - Cheng April 17, 2 | 2001-04-17 |
| Lens arrangement for enhancing the coupling of light shifted by an optical element Grant 6,157,485 - Cheng December 5, 2 | 2000-12-05 |
| Optical coupling Grant 6,142,678 - Cheng November 7, 2 | 2000-11-07 |
| Optical fibre sleeve Grant 6,134,360 - Cheng , et al. October 17, 2 | 2000-10-17 |
| Polarizing beam splitter/combiner Grant 6,014,256 - Cheng January 11, 2 | 2000-01-11 |
| Optical device for splitting an input beam into two orthogonal polarization states Grant 6,014,254 - Cheng January 11, 2 | 2000-01-11 |
| Optical multiplexing/demultiplexing device Grant 5,920,411 - Duck , et al. July 6, 1 | 1999-07-06 |
| Device for focusing light through an optical component Grant 5,850,493 - Cheng December 15, 1 | 1998-12-15 |
| Multi-port optical device Grant 5,799,121 - Duck , et al. August 25, 1 | 1998-08-25 |
| Method for and encapsulation of an optical fiber Grant 5,745,626 - Duck , et al. April 28, 1 | 1998-04-28 |
| Graded index lens system and method for coupling light Grant 5,680,237 - Cheng October 21, 1 | 1997-10-21 |
| Optical tap coupler device Grant 5,657,155 - Cheng August 12, 1 | 1997-08-12 |
| Wavelength filter arrangements for use in fiber optics Grant 5,629,995 - Duck , et al. May 13, 1 | 1997-05-13 |
| Integrated optical isolator Grant 5,594,821 - Cheng January 14, 1 | 1997-01-14 |
| Non-reciprocal optical waveguide coupling device Grant 5,588,078 - Cheng , et al. December 24, 1 | 1996-12-24 |
| Means to lessen unwanted reflections in an optical device Grant 5,539,577 - Si , et al. July 23, 1 | 1996-07-23 |
| Tunable optical filter Grant 5,481,402 - Cheng , et al. January 2, 1 | 1996-01-02 |
| Reflective optical non-reciprocal devices Grant 5,471,340 - Cheng , et al. November 28, 1 | 1995-11-28 |
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