David DeWaard

Person

Lynden, WA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Self-flushing anaerobic digester system
- Patent number 11,858,870
- Issue date Jan 2, 2024
- DARI-TECH, INC.
- David DeWaard
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Automated manifold for removing digestate from a lagoon digester
- Patent number 11,680,000
- Issue date Jun 20, 2023
- David DeWaard
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Two-tank wiered reservoir and method of use
- Patent number 11,582,943
- Issue date Feb 21, 2023
- Dari-Tech, Inc.
- David DeWaard
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Two-tank weired reservoir and method of use
- Patent number 11,490,587
- Issue date Nov 8, 2022
- David DeWaard
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Alley vacuum dumping receptacle for manure dilution
- Patent number 11,240,952
- Issue date Feb 8, 2022
- Dari-Tech, Inc.
- David C. DeWaard
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Closed-loop, short interval flushing method and system for use in a...
- Patent number 11,122,767
- Issue date Sep 21, 2021
- Dari-Tech, Inc.
- David DeWaard
- B08 - CLEANING
Information Patent Grant
Feed systems and methods for rotary screen separators
- Patent number 10,933,359
- Issue date Mar 2, 2021
- David DeWaard
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method and system for compounding fertilizer from manure without nu...
- Patent number 10,793,483
- Issue date Oct 6, 2020
- Dari-Tech, Inc.
- David DeWaard
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Grant
Method and system for compounding fertilizer from manure without nu...
- Patent number 10,683,239
- Issue date Jun 16, 2020
- Dari-Tech, Inc.
- David DeWaard
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Grant
Self-flushing anaerobic digester system
- Patent number 10,611,700
- Issue date Apr 7, 2020
- Dari-Tech, Inc.
- David DeWaard
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Grant
Closed-loop, short interval flushing method and system for use in a...
- Patent number 10,609,892
- Issue date Apr 7, 2020
- Dari-Tech, Inc.
- Dave DeWaard
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Systems and methods for extracting particulate from raw slurry mate...
- Patent number 10,603,675
- Issue date Mar 31, 2020
- Dari-Tech, Inc.
- David DeWaard
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Cleaning systems and methods for rotary screen separators
- Patent number 10,603,611
- Issue date Mar 31, 2020
- David DeWaard
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Grant
Two-tank weired reservoir and method of use
- Patent number 10,568,298
- Issue date Feb 25, 2020
- Dari-Tech, Inc.
- David DeWaard
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Feed systems and methods for rotary screen separators
- Patent number 10,286,340
- Issue date May 14, 2019
- Daritech, Inc.
- David DeWaard
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Methods and apparatus for cleaning the udder of a cow
- Patent number RE46988
- Issue date Aug 14, 2018
- Dave DeWaard
Information Patent Grant
Anaerobic digesting systems and methods for processing animal waste
- Patent number 9,751,787
- Issue date Sep 5, 2017
- Daritech, Inc.
- David DeWaard
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Systems and methods for extracting particulate from raw slurry mate...
- Patent number 9,610,521
- Issue date Apr 4, 2017
- Daritech, Inc.
- David DeWaard
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Systems and methods for extracting sand from raw slurry material
- Patent number 9,597,618
- Issue date Mar 21, 2017
- Daritech, Inc.
- David DeWaard
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Systems and methods for extracting particulate from raw slurry mate...
- Patent number 8,926,846
- Issue date Jan 6, 2015
- Daritech, Inc.
- David DeWaard
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Systems and methods for extracting sand from raw slurry material
- Patent number 8,889,016
- Issue date Nov 18, 2014
- Daritech, Inc.
- David DeWaard
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Composter mechanism
- Patent number 8,728,801
- Issue date May 20, 2014
- Daritech, Inc.
- Dave DeWaard
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Grant
Systems and methods for extracting sand from raw slurry material
- Patent number 8,470,183
- Issue date Jun 25, 2013
- Daritech, Inc.
- Dave DeWaard
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Pre-separator for a screen separator
- Patent number 8,201,495
- Issue date Jun 19, 2012
- Daritech, Inc.
- David DeWaard
- B30 - PRESSES
Information Patent Grant
Manure separation for digester method and apparatus
- Patent number 8,142,667
- Issue date Mar 27, 2012
- Daritech, Inc.
- David C. DeWaard
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Grant
Pre-separator for a screen separator
- Patent number 7,987,778
- Issue date Aug 2, 2011
- Daritech, Inc.
- Dave DeWaard
- B30 - PRESSES
Information Patent Grant
Manure separation for digester method and apparatus
- Patent number 7,306,731
- Issue date Dec 11, 2007
- Daritech, Inc.
- Dave C DeWaard
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Valve for a milking apparatus
- Patent number 6,997,135
- Issue date Feb 14, 2006
- Dave DeWaard
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Cow indexing and positioning method and apparatus
- Patent number 6,637,375
- Issue date Oct 28, 2003
- Dave DeWaard
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Method and apparatus for cleaning the udder of a cow
- Patent number 6,443,094
- Issue date Sep 3, 2002
- Dave DeWaard
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING

Patents Applicationslast 30 patents

Information Patent Application
Automated Manifold For Removing Digestate From A Lagoon Digester
- Publication number 20220289605
- Publication date Sep 15, 2022
- David DeWaard
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
ALLEY VACUUM DUMPING RECEPTACLE FOR MANURE DILUTION WITH SAND GATES
- Publication number 20210352837
- Publication date Nov 18, 2021
- David DeWaard
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Alley Vacuum Dumping Receptacle For Manure Dilution
- Publication number 20210307237
- Publication date Oct 7, 2021
- Dari-Tech, Inc.
- David C. DeWaard
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
Cleaning Systems and Methods for Rotary Screen Separators
- Publication number 20200206661
- Publication date Jul 2, 2020
- David DeWaard
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Application
SELF-FLUSHING ANAEROBIC DIGESTER SYSTEM
- Publication number 20200172449
- Publication date Jun 4, 2020
- David DeWaard
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Application
SYSTEMS AND METHODS FOR EXTRACTING PARTICULATE FROM RAW SLURRY MATE...
- Publication number 20200122159
- Publication date Apr 23, 2020
- Dari-Tech, Inc.
- David DeWaard
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Closed-Loop, Short Interval Flushing Method and System for Use in A...
- Publication number 20200113148
- Publication date Apr 16, 2020
- Dari-Tech, Inc.
- David DeWaard
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
FEED SYSTEMS AND METHODS FOR ROTARY SCREEN SEPARATORS
- Publication number 20200094174
- Publication date Mar 26, 2020
- David DeWaard
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
TWO-TANK WEIRED RESERVOIR AND METHOD OF USE
- Publication number 20200060220
- Publication date Feb 27, 2020
- David DeWaard
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
CLOSED-LOOP, SHORT INTERVAL FLUSHING METHOD AND SYSTEM FOR USE IN A...
- Publication number 20190254250
- Publication date Aug 22, 2019
- Daritech Inc.
- Dave DeWaard
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
Feed Systems and Methods for Rotary Screen Separators
- Publication number 20190224595
- Publication date Jul 25, 2019
- DARITECH, INC.
- David DeWaard
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD AND SYSTEM FOR COMPOUNDING FERTILIZER FROM MANURE WITHOUT NU...
- Publication number 20190119179
- Publication date Apr 25, 2019
- DARITECH, INC.
- David DeWaard
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Application
METHOD AND SYSTEM FOR COMPOUNDING FERTILIZER FROM MANURE WITHOUT NU...
- Publication number 20190119174
- Publication date Apr 25, 2019
- DariTech, Inc.
- David DeWaard
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Application
METHOD AND SYSTEM FOR COMPOUNDING FERTILIZER FROM MANURE WITHOUT NU...
- Publication number 20190119177
- Publication date Apr 25, 2019
- DanTech, Inc.
- David DeWaard
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Application
Self-Flushing Anaerobic Digester System
- Publication number 20170283338
- Publication date Oct 5, 2017
- DARITECH, INC.
- David DeWaard
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Application
TWO-TANK WIERED RESERVOIR AND METHOD OF USE
- Publication number 20170245458
- Publication date Aug 31, 2017
- DariTech, Inc.
- David DeWaard
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
Systems and Methods for Extracting Sand from Raw Slurry Material
- Publication number 20170209818
- Publication date Jul 27, 2017
- DARITECH, INC.
- David DeWaard
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Systems and Methods for Extracting Particulate from Raw Slurry Mate...
- Publication number 20160121339
- Publication date May 5, 2016
- Daritech, Inc.
- David DeWaard
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Application
TWO-TANK WIERED RESERVOIR AND METHOD OF USE
- Publication number 20160106057
- Publication date Apr 21, 2016
- DARITECH, INC.
- David DeWaard
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
Feed Systems and Methods for Rotary Screen Separators
- Publication number 20150343343
- Publication date Dec 3, 2015
- DARITECH, INC.
- David DeWaard
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Cleaning Systems and Methods for Rotary Screen Separators
- Publication number 20150343344
- Publication date Dec 3, 2015
- DARITECH, INC.
- David DeWaard
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Splice systems and methods for ropes
- Publication number 20150251112
- Publication date Sep 10, 2015
- DARITECH, INC.
- David DeWaard
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
SYSTEMS AND METHODS FOR EXTRACTING PARTICULATE FROM RAW SLURRY MATE...
- Publication number 20150122747
- Publication date May 7, 2015
- DARITECH, INC.
- David DeWaard
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Systems and Methods for Extracting Sand from Raw Slurry Material
- Publication number 20150083672
- Publication date Mar 26, 2015
- DARITECH, INC.
- David DeWaard
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Hybrid Rotary Screen Separator
- Publication number 20150053594
- Publication date Feb 26, 2015
- DARITECH, INC.
- David DeWaard
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Application
Systems and Methods for Extracting Particulate from Raw Slurry Mate...
- Publication number 20150008193
- Publication date Jan 8, 2015
- DARITECH, INC.
- David DeWaard
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
Systems and Methods for Separating Solids from Liquids
- Publication number 20140091043
- Publication date Apr 3, 2014
- DARITECH, INC.
- David DeWaard
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Systems and Methods for Extracting Sand from Raw Slurry Material
- Publication number 20140083957
- Publication date Mar 27, 2014
- DARITECH, INC.
- David DeWaard
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Hybrid Rotary Screen Separator
- Publication number 20130299395
- Publication date Nov 14, 2013
- David DeWaard
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Application
SYSTEMS AND METHODS FOR EXTRACTING PARTICULATE FROM RAW SLURRY MATE...
- Publication number 20120138515
- Publication date Jun 7, 2012
- DARITECH, INC.
- David DeWaard
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

David DeWaard

Person

Patents Grantslast 30 patents

Self-flushing anaerobic digester system

Automated manifold for removing digestate from a lagoon digester

Two-tank wiered reservoir and method of use

Two-tank weired reservoir and method of use

Alley vacuum dumping receptacle for manure dilution

Closed-loop, short interval flushing method and system for use in a...

Feed systems and methods for rotary screen separators

Method and system for compounding fertilizer from manure without nu...

Method and system for compounding fertilizer from manure without nu...

Self-flushing anaerobic digester system

Closed-loop, short interval flushing method and system for use in a...

Systems and methods for extracting particulate from raw slurry mate...

Cleaning systems and methods for rotary screen separators

Two-tank weired reservoir and method of use

Feed systems and methods for rotary screen separators

Methods and apparatus for cleaning the udder of a cow

Anaerobic digesting systems and methods for processing animal waste

Systems and methods for extracting particulate from raw slurry mate...

Systems and methods for extracting sand from raw slurry material

Systems and methods for extracting particulate from raw slurry mate...

Systems and methods for extracting sand from raw slurry material

Composter mechanism

Systems and methods for extracting sand from raw slurry material

Pre-separator for a screen separator

Manure separation for digester method and apparatus

Pre-separator for a screen separator

Manure separation for digester method and apparatus

Valve for a milking apparatus

Cow indexing and positioning method and apparatus

Method and apparatus for cleaning the udder of a cow

Patents Applicationslast 30 patents

Automated Manifold For Removing Digestate From A Lagoon Digester

ALLEY VACUUM DUMPING RECEPTACLE FOR MANURE DILUTION WITH SAND GATES

Alley Vacuum Dumping Receptacle For Manure Dilution

Cleaning Systems and Methods for Rotary Screen Separators

SELF-FLUSHING ANAEROBIC DIGESTER SYSTEM

SYSTEMS AND METHODS FOR EXTRACTING PARTICULATE FROM RAW SLURRY MATE...

Closed-Loop, Short Interval Flushing Method and System for Use in A...

FEED SYSTEMS AND METHODS FOR ROTARY SCREEN SEPARATORS

TWO-TANK WEIRED RESERVOIR AND METHOD OF USE

CLOSED-LOOP, SHORT INTERVAL FLUSHING METHOD AND SYSTEM FOR USE IN A...

Feed Systems and Methods for Rotary Screen Separators

METHOD AND SYSTEM FOR COMPOUNDING FERTILIZER FROM MANURE WITHOUT NU...

METHOD AND SYSTEM FOR COMPOUNDING FERTILIZER FROM MANURE WITHOUT NU...

METHOD AND SYSTEM FOR COMPOUNDING FERTILIZER FROM MANURE WITHOUT NU...

Self-Flushing Anaerobic Digester System

TWO-TANK WIERED RESERVOIR AND METHOD OF USE

Systems and Methods for Extracting Sand from Raw Slurry Material

Systems and Methods for Extracting Particulate from Raw Slurry Mate...

TWO-TANK WIERED RESERVOIR AND METHOD OF USE

Feed Systems and Methods for Rotary Screen Separators

Cleaning Systems and Methods for Rotary Screen Separators

Splice systems and methods for ropes

SYSTEMS AND METHODS FOR EXTRACTING PARTICULATE FROM RAW SLURRY MATE...

Systems and Methods for Extracting Sand from Raw Slurry Material

Hybrid Rotary Screen Separator

Systems and Methods for Extracting Particulate from Raw Slurry Mate...

Systems and Methods for Separating Solids from Liquids

Systems and Methods for Extracting Sand from Raw Slurry Material

Hybrid Rotary Screen Separator

SYSTEMS AND METHODS FOR EXTRACTING PARTICULATE FROM RAW SLURRY MATE...