Patent | Date |
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Feed systems and methods for rotary screen separators Grant 10,933,359 - DeWaard March 2, 2 | 2021-03-02 |
Method and system for compounding fertilizer from manure without nutrient emission Grant 10,919,815 - DeWaard , et al. February 16, 2 | 2021-02-16 |
Method and system for compounding fertilizer from manure without nutrient emission Grant 10,793,483 - DeWaard , et al. October 6, 2 | 2020-10-06 |
Method and system for compounding fertilizer from manure without nutrient emission Grant 10,683,239 - DeWaard , et al. | 2020-06-16 |
Closed-loop, short interval flushing method and system for use in automated milking system dairies Grant 10,609,892 - DeWaard | 2020-04-07 |
Self-flushing anaerobic digester system Grant 10,611,700 - DeWaard | 2020-04-07 |
Cleaning systems and methods for rotary screen separators Grant 10,603,611 - DeWaard | 2020-03-31 |
Systems and methods for extracting particulate from raw slurry material Grant 10,603,675 - DeWaard | 2020-03-31 |
Two-tank weired reservoir and method of use Grant 10,568,298 - DeWaard Feb | 2020-02-25 |
Closed-loop, Short Interval Flushing Method And System For Use In Automated Milking System Dairies App 20190254250 - DeWaard; Dave | 2019-08-22 |
Feed Systems and Methods for Rotary Screen Separators App 20190224595 - DeWaard; David | 2019-07-25 |
Feed systems and methods for rotary screen separators Grant 10,286,340 - DeWaard | 2019-05-14 |
Method And System For Compounding Fertilizer From Manure Without Nutrient Emission App 20190119174 - DeWaard; David ;   et al. | 2019-04-25 |
Method And System For Compounding Fertilizer From Manure Without Nutrient Emission App 20190119177 - DeWaard; David ;   et al. | 2019-04-25 |
Method And System For Compounding Fertilizer From Manure Without Nutrient Emission App 20190119179 - DeWaard; David ;   et al. | 2019-04-25 |
Self-Flushing Anaerobic Digester System App 20170283338 - DeWaard; David | 2017-10-05 |
Anaerobic digesting systems and methods for processing animal waste Grant 9,751,787 - DeWaard September 5, 2 | 2017-09-05 |
Two-tank Wiered Reservoir And Method Of Use App 20170245458 - DeWaard; David | 2017-08-31 |
Systems and Methods for Extracting Sand from Raw Slurry Material App 20170209818 - DeWaard; David | 2017-07-27 |
Systems and methods for extracting particulate from raw slurry material Grant 9,610,521 - DeWaard April 4, 2 | 2017-04-04 |
Systems and methods for extracting sand from raw slurry material Grant 9,597,618 - DeWaard March 21, 2 | 2017-03-21 |
Systems and Methods for Extracting Particulate from Raw Slurry Material App 20160121339 - DeWaard; David | 2016-05-05 |
Two-tank Wiered Reservoir And Method Of Use App 20160106057 - DeWaard; David | 2016-04-21 |
Cleaning Systems and Methods for Rotary Screen Separators App 20150343344 - DeWaard; David | 2015-12-03 |
Feed Systems and Methods for Rotary Screen Separators App 20150343343 - DeWaard; David | 2015-12-03 |
Splice systems and methods for ropes App 20150251112 - DeWaard; David | 2015-09-10 |
Systems And Methods For Extracting Particulate From Raw Slurry Material App 20150122747 - DeWaard; David | 2015-05-07 |
Systems and Methods for Extracting Sand from Raw Slurry Material App 20150083672 - DeWaard; David | 2015-03-26 |
Hybrid Rotary Screen Separator App 20150053594 - DeWaard; David | 2015-02-26 |
Systems and Methods for Extracting Particulate from Raw Slurry Material App 20150008193 - DeWaard; David | 2015-01-08 |
Systems and methods for extracting particulate from raw slurry material Grant 8,926,846 - DeWaard January 6, 2 | 2015-01-06 |
Systems and methods for extracting sand from raw slurry material Grant 8,889,016 - DeWaard November 18, 2 | 2014-11-18 |
Composter mechanism Grant 8,728,801 - DeWaard May 20, 2 | 2014-05-20 |
Systems and Methods for Separating Solids from Liquids App 20140091043 - DeWaard; David | 2014-04-03 |
Systems and Methods for Extracting Sand from Raw Slurry Material App 20140083957 - DeWaard; David | 2014-03-27 |
Hybrid Rotary Screen Separator App 20130299395 - DeWaard; David | 2013-11-14 |
Systems and methods for extracting sand from raw slurry material Grant 8,470,183 - DeWaard June 25, 2 | 2013-06-25 |
Pre-separator for a screen separator Grant 8,201,495 - DeWaard June 19, 2 | 2012-06-19 |
Systems And Methods For Extracting Particulate From Raw Slurry Material App 20120138515 - DeWaard; David | 2012-06-07 |
Systems And Methods For Processing Animal Waste App 20120132734 - DeWaard; David | 2012-05-31 |
Manure separation for digester method and apparatus Grant 8,142,667 - DeWaard March 27, 2 | 2012-03-27 |
Pre-separator For A Screen Separator App 20110309039 - DeWaard; David | 2011-12-22 |
Systems And Methods For Cleaning Dairy Facilities App 20110253227 - DeWaard; David | 2011-10-20 |
Hybrid Rotary Screen Separator App 20110198268 - DeWaard; David | 2011-08-18 |
Pre-separator for a screen separator Grant 7,987,778 - DeWaard August 2, 2 | 2011-08-02 |
Systems And Methods For Extracting Sand From Raw Slurry Material App 20110100930 - DeWaard; Dave | 2011-05-05 |
Force convection milk pasteurizer Grant 7,631,595 - DeWaard December 15, 2 | 2009-12-15 |
Manure separation for digester method and apparatus Grant 7,306,731 - DeWaard December 11, 2 | 2007-12-11 |