Chang; Kwang Hyun

Patent Applications and Registrations

Patent applications and USPTO patent grants for Chang; Kwang Hyun.The latest application filed is for "method and apparatus for manufacturing continuous acrylic acid through propane partial oxidation reaction".

Company Profile

0.9.9

Chang; Kwang Hyun - Daejeon KR
CHANG; Kwang-Hyun - Darjeon KR

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Metal oxide-carbon nanomaterial composite, method of preparing the same, catalyst, method of preparing the same, and catalyst layer for fuel cell electrodes Grant 10,141,579 - Yim , et al. Nov	2018-11-27
Continuous manufacturing apparatus and method for carbon nanotubes having gas separation units Grant 10,081,002 - Chang , et al. September 25, 2	2018-09-25
Method and apparatus for manufacturing continuous acrylic acid through propane partial oxidation reaction Grant 10,029,974 - Chang , et al. July 24, 2	2018-07-24
Method And Apparatus For Manufacturing Continuous Acrylic Acid Through Propane Partial Oxidation Reaction App 20170297994 - CHANG; Kwang-Hyun ; et al.	2017-10-19
Apparatus and method for continuously producing carbon nanotubes Grant 9,782,738 - Chang , et al. October 10, 2	2017-10-10
Apparatus and method for continuously producing carbon nanotubes Grant 9,687,802 - Chang , et al. June 27, 2	2017-06-27
Apparatus and method for continuously producing carbon nanotubes Grant 9,630,160 - Chang , et al. April 25, 2	2017-04-25
Metal Oxide-carbon Nanomaterial Composite, Method Of Preparing The Same, Catalyst, Method Of Preparing The Same, And Catalyst Layer For Fuel Cell Electrodes App 20170069916 - Yim; Sung Dae ; et al.	2017-03-09
Continuous Manufacturing Apparatus And Method For Carbon Nanotubes Having Gas Separation Units App 20150202585 - CHANG; Kwang-Hyun ; et al.	2015-07-23
Continuous manufacturing apparatus and method for carbon nanotubes having gas separation units Grant 9,017,635 - Chang , et al. April 28, 2	2015-04-28
Apparatus And Method For Continuously Producing Carbon Nanotubes App 20140127123 - CHANG; Kwang-Hyun ; et al.	2014-05-08
Apparatus And Method For Continuously Producing Carbon Nanotubes App 20130336875 - CHANG; Kwang-Hyun ; et al.	2013-12-19
Apparatus And Method For Continuously Producing Carbon Nanotubes App 20130315813 - Chang; Kwang-Hyun ; et al.	2013-11-28
Continuous Manufacturing Apparatus And Method For Carbon Nanotubes Having Gas Separation Units App 20130302238 - Chang; Kwang-Hyun ; et al.	2013-11-14

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.