loadpatents
Patent applications and USPTO patent grants for Cho; Shinhye.The latest application filed is for "hydroxyl group-containing amine-based sulfur dioxide and sulfurous acid absorbent, and method for preparing the same".
Patent | Date |
---|---|
Sulfur dioxide absorbent is an ionic liquid including a salt of a diamine compound that is substituted with a hydroxyl group Grant 10,926,213 - Lee , et al. February 23, 2 | 2021-02-23 |
Zinc-imidazole complex mixed catalyst and method for producing methyl N-phenyl carbamate using the same Grant 10,722,875 - Lee , et al. | 2020-07-28 |
Hydroxyl Group-containing Amine-based Sulfur Dioxide And Sulfurous Acid Absorbent, And Method For Preparing The Same App 20200155997 - LEE; Hyun Joo ;   et al. | 2020-05-21 |
Zinc-imidazole Complex Mixed Catalyst And Method For Producing Methyl N-phenyl Carbamate Using The Same App 20200061596 - LEE; Hyun Joo ;   et al. | 2020-02-27 |
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.