Cha; Chang Yul

Patent Applications and Registrations

Patent applications and USPTO patent grants for Cha; Chang Yul.The latest application filed is for "desiccant air purification device".

Company Profile

0.21.18

Cha; Chang Yul - Roseville CA
Cha; Chang Yul - Laramie WY US
Cha; Chang Yul - Bakersfield CA
Cha; Chang Yul - La Verne CA
Cha; Chang Yul - LaVerne CA

*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
Desiccant Air Purification Device App 20220307708 - Cha; Chang Yul ; et al.	2022-09-29
Microwave Enhanced Air Disinfection System App 20220152540 - Cha; Chang Yul ; et al.	2022-05-19
Control Of A Microwave Enhanced Air Disinfection System App 20220152264 - Cha; Chang Yul ; et al.	2022-05-19
Process and system for recovering oil from tar sands using microwave energy Grant 8,771,503 - Cha , et al. July 8, 2	2014-07-08
Microwave process and apparatus for breaking emulsions Grant 8,653,148 - Cha February 18, 2	2014-02-18
Microwave induced destruction of siloxanes and hydrogen sulfide in biogas Grant 8,431,083 - Cha April 30, 2	2013-04-30
Microwave Filter Air Purification Systems, Methods Of Use, And Methods Of Disinfection And Decontamination App 20130074698 - Wu; Chang-Yu ; et al.	2013-03-28
Microwave Induced Destruction Of Siloxanes And Hydrogen Sulfide In Biogas App 20120301366 - Cha; Chang Yul	2012-11-29
Microwave Disposal System For Hazardous Substances App 20120108879 - Cha; Chang Yul ; et al.	2012-05-03
Apparatus for microwave induced destruction of siloxanes and hydrogen sulfide in biogas Grant 8,168,126 - Cha May 1, 2	2012-05-01
Microwave Induced Destruction Of Siloxanes And Hydrogen Sulfide In Biogas App 20110280773 - Cha; Chang Yul	2011-11-17
Microwave induced destruction of siloxanes and hydrogen sulfide in biogas Grant 7,960,303 - Cha June 14, 2	2011-06-14
Microwave Process and Apparatus for Breaking Emulsions App 20110136923 - Cha; Chang Yul	2011-06-09
Process And System For Recovering Oil From Tar Sands Using Microwave Energy App 20110114470 - Cha; Chang Yul ; et al.	2011-05-19
Microwave Induced Destruction Of Impurities From Biogas And Nitrogen Oxides From Engine Exhaust App 20100143209 - CHA; CHANG YUL	2010-06-10
Microwave induced destruction of impurities from biogas and nitrogen oxides from engine exhaust Grant 7,641,874 - Cha January 5, 2	2010-01-05
Microwave Induced Destruction Of Impurities From Biogas And Nitrogen Oxides From Engine Exhaust App 20080197013 - CHA; CHANG YUL	2008-08-21
Microwave Induced Destruction Of Siloxanes And Hydrogen Sulfide In Biogas App 20080179177 - CHA; CHANG YUL	2008-07-31
Process for microwave alternative destruction-adsorption Grant 7,303,684 - Cha December 4, 2	2007-12-04
Microwave based air purifier App 20070126649 - Cha; Chang Yul ; et al.	2007-06-07
Process for microwave alternative destruction-adsorption App 20050154248 - Cha, Chang Yul	2005-07-14
Process for microwave destruction of harmful agents and waste Grant 6,830,662 - Cha December 14, 2	2004-12-14
Process for efficient microwave hydrogen production Grant 6,783,632 - Cha August 31, 2	2004-08-31
Process for efficient microwave hydrogen production App 20030206855 - Cha, Chang Yul	2003-11-06
Process for efficient microwave hydrogen production Grant 6,592,723 - Cha July 15, 2	2003-07-15
Process for microwave destruction of harmful agents and waste App 20020189928 - Cha, Chang Yul	2002-12-19
Process for efficient microwave hydrogen production App 20020146366 - Cha, Chang Yul	2002-10-10
Device for microwave removal of NOx from exhaust gas Grant 6,284,202 - Cha , et al. September 4, 2	2001-09-04
Process for microwave decomposition of hazardous matter Grant 6,187,988 - Cha February 13, 2	2001-02-13
Process and device for removal of combustion pollutants under high oxygen conditions Grant 5,767,470 - Cha June 16, 1	1998-06-16
Process for co-recycling tires and oils Grant 5,735,948 - Cha , et al. April 7, 1	1998-04-07
Enriching off gas from oil shale retort Grant 4,036,299 - Cha , et al. July 19, 1	1977-07-19
System for fuel and products of oil shale retort Grant 4,014,575 - French , et al. March 29, 1	1977-03-29
Method of igniting in situ oil shale retort with fuel rich flue gas Grant 4,005,752 - Cha February 1, 1	1977-02-01
Apparatus for obtaining uniform gas flow through an in situ oil shale retort Grant 3,941,421 - Burton, III , et al. March 2, 1	1976-03-02

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