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Patent applications and USPTO patent grants for Dvorak; Stephen W..The latest application filed is for "methods and apparatuses for processing poultry litter".
Patent | Date |
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Methods And Apparatuses For Processing Poultry Litter App 20220186164 - VanOrnum; Doug ;   et al. | 2022-06-16 |
Nutrient Recovery Systems And Methods App 20210017034 - Zhao; Quanbao ;   et al. | 2021-01-21 |
Composite Components From Anaerobic Digested Fibrous Materials App 20200362378 - Dvorak; Stephen W. ;   et al. | 2020-11-19 |
Biosolids Digester And Process For Biosolids Production App 20200346989 - Dvorak; Stephen W. | 2020-11-05 |
Composite components from anaerobic digested fibrous materials Grant 10,731,190 - Dvorak , et al. | 2020-08-04 |
Biosolids digester and process for biosolids production Grant 10,717,684 - Dvorak | 2020-07-21 |
Nutrient recovery systems and methods Grant 10,556,804 - Zhao , et al. Feb | 2020-02-11 |
Methods and Apparatuses for Removal of Hydrogen Sulfide and Carbon Dioxide from Biogas App 20160251587 - Kennedy; Nicholas ;   et al. | 2016-09-01 |
Methods and apparatuses for removal of hydrogen sulfide and carbon dioxide from biogas Grant 9,339,760 - Kennedy , et al. May 17, 2 | 2016-05-17 |
Algae bioreactor, system and process Grant 9,005,918 - Dvorak , et al. April 14, 2 | 2015-04-14 |
Biosolids Digester And Process For Biosolids Production App 20140377855 - Dvorak; Stephen W. | 2014-12-25 |
Nutrient Recovery Systems And Methods App 20140314657 - Zhao; Quanbao ;   et al. | 2014-10-23 |
Biosolids digester and process for biosolids production Grant 8,835,155 - Dvorak September 16, 2 | 2014-09-16 |
Nutrient recovery systems and methods Grant 8,613,894 - Zhao , et al. December 24, 2 | 2013-12-24 |
Methods And Apparatuses For Removal Of Hydrogen Sulfide And Carbon Dioxide From Biogas App 20130309759 - Kennedy; Nicholas ;   et al. | 2013-11-21 |
Algae Bioreactor, System And Process App 20130280757 - Dvorak; Stephen W. ;   et al. | 2013-10-24 |
Composite Components From Anaerobic Digested Fibrous Materials App 20130224803 - Dvorak; Stephen W. ;   et al. | 2013-08-29 |
Method and apparatus for anaerobic digestion of organic liquid waste streams Grant 8,470,177 - Dvorak June 25, 2 | 2013-06-25 |
Composite components from anaerobic digested fibrous materials Grant 8,414,808 - Dvorak , et al. April 9, 2 | 2013-04-09 |
Anaerobic digester employing circular tank Grant 8,394,271 - Dvorak March 12, 2 | 2013-03-12 |
Biosolids Digester And Process For Biosolids Production App 20120329139 - Dvorak; Stephen W. | 2012-12-27 |
Method and apparatus for solids processing Grant 8,202,721 - Dvorak June 19, 2 | 2012-06-19 |
Nutrient Recovery Systems And Methods App 20120118035 - Zhao; Quanbao ;   et al. | 2012-05-17 |
Methods And Apparatuses To Reduce Hydrogen Sulfide In A Biogas App 20110042307 - VanOrnum; Douglas ;   et al. | 2011-02-24 |
Composite Components From Anaerobic Digested Fibrous Materials App 20100201026 - Dvorak; Stephen W. ;   et al. | 2010-08-12 |
Anaerobic Digester Employing Circular Tank App 20100173391 - Dvorak; Stephen W. | 2010-07-08 |
Method and Apparatus for Anaerobic Digestion of Organic Liquid Waste Streams App 20100140169 - Dvorak; Stephen W. | 2010-06-10 |
Permanent Access Port App 20080277336 - Dvorak; Stephen W. | 2008-11-13 |
Method And Apparatus For Solids Processing App 20070114173 - Dvorak; Stephen W. | 2007-05-24 |
Method and apparatus for solids processing Grant 7,179,642 - Dvorak February 20, 2 | 2007-02-20 |
Method and apparatus for solids processing Grant 7,078,229 - Dvorak July 18, 2 | 2006-07-18 |
Method and apparatus for solids processing App 20040087011 - Dvorak, Stephen W. | 2004-05-06 |
Method and apparatus for solids processing Grant 6,613,562 - Dvorak September 2, 2 | 2003-09-02 |
Method and apparatus for solids processing App 20020197665 - Dvorak, Stephen W. | 2002-12-26 |
Method and apparatus for solids processing App 20020192810 - Dvorak, Stephen W. | 2002-12-19 |
Method and apparatus for solids processing Grant 6,451,589 - Dvorak September 17, 2 | 2002-09-17 |
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