JK

John A. Karch

AR Atlantic Richfield: 8 patents #51 of 1,061Top 5%
UO Uop: 4 patents #580 of 1,854Top 35%
Overall (All Time): #339,946 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12102986 Catalyst for propane dehydrogenation to propylene Xi Zhao, Avram M. Buchbinder, J. W. Adriaan Sachtler, Wei Pan 2024-10-01
7309679 Attrition resistant MTO catalyst Thomas M. Reynolds 2007-12-18
4963520 Metal-containing spinel composition and process of using same Jin S. Yoo, Cecelia A. Radlowski, Alakananda Bhattacharyya 1990-10-16
4957718 Process for reducing emissions of sulfur oxides and composition useful in same Jin S. Yoo, Alakananda Bhattacharyya, Cecelia A. Radlowski 1990-09-18
4790982 Metal-containing spinel composition and process of using same Jin S. Yoo, Cecelia A. Radlowski, Alakananda Bhattacharyya 1988-12-13
4522937 Preparative process for alkaline earth metal, aluminum-containing spinels Jin S. Yoo, Richard F. Poss, Emmett H. Burk, Jr. 1985-06-11
4317713 In situ aluminum passivation process Emmett H. Burk, Jr., Jin S. Yoo 1982-03-02
4293403 Catalyst demetallization by converting the metal poisons to a sulfur containing metal compound having a defined low amount of sulfur Emmett H. Burk, Jr., Jin S. Yoo, Jui-Yuan Sun 1981-10-06
4267032 Demetallization process for a conversion catalyst Emmett H. Burk, Jr., Jin S. Yoo, Jui-Yuan Sun 1981-05-12
4243550 Catalyst demetallization with a reductive SO.sub.2 wash Emmett H. Burk, Jr., Jin S. Yoo, Jui-Yuan Sun 1981-01-06
4234452 High pressure oxygen aqueous phase catalyst demetallization Emmett H. Burk, Jr., Jin S. Yoo, Jui-Yuan Sun 1980-11-18
4224038 Process for removing sulfur from coal George P. Masologites, Emmett H. Burk, Jr., Jin S. Yoo 1980-09-23
4204840 Process for removing sulfur from coal Jin S. Yoo, Emmett H. Burk, Jr. 1980-05-27
4197090 Process for removing sulfur from coal Jin S. Yoo, Emmett H. Burk, Jr. 1980-04-08