loadpatents
Patent applications and USPTO patent grants for Han; Seon Gyu.The latest application filed is for "perfluorostyrene compound, and coating solution and optical waveguide device using the same".
Patent | Date |
---|---|
Perfluorostyrene compound, and coating solution and optical waveguide device using the same App 20070173592 - Kim; Ji-Hyang ;   et al. | 2007-07-26 |
Perfluorostyrene compound, and coating solution and optical waveguide device using the same Grant 7,202,324 - Kim , et al. April 10, 2 | 2007-04-10 |
Perfluorostyrene compound, and coating solution and optical waveguide device using the same App 20050163451 - Kim, Ji-Hyang ;   et al. | 2005-07-28 |
Perfluorostyrene compound, and coating solution and optical waveguide device using the same App 20040127632 - Kim, Ji-Hyang ;   et al. | 2004-07-01 |
Electro-optic polymer waveguide device for decreasing a driving voltage and an optical loss and method of making the same Grant 6,067,387 - Oh , et al. May 23, 2 | 2000-05-23 |
Resonant tunneling opto-electronic device having a plurality of window layers Grant 5,446,293 - Chu , et al. August 29, 1 | 1995-08-29 |
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.