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Douglas P. Walter
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Dickinson, ND, US
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Patents Grants
last 30 patents
Information
Patent Grant
Submersible water circulation system for enclosed tanks
Patent number
10,054,124
Issue date
Aug 21, 2018
Medora Environmental, Inc.
Douglas P. Walter
E03 - WATER SUPPLY SEWERAGE
Information
Patent Grant
Method and apparatus for treating potable water in municipal and si...
Patent number
10,029,924
Issue date
Jul 24, 2018
Medora Environmental, Inc.
Corey M. Simnioniw
E03 - WATER SUPPLY SEWERAGE
Information
Patent Grant
Submersible water circulation system for enclosed tanks
Patent number
9,726,162
Issue date
Aug 8, 2017
Medora Environmental, Inc.
Douglas P. Walter
E03 - WATER SUPPLY SEWERAGE
Information
Patent Grant
Air-powered water circulation systems for ponds, lakes, municipal w...
Patent number
9,586,184
Issue date
Mar 7, 2017
Medora Environmental, Inc.
Joel J. Bleth
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Submersible water circulation system for enclosed tanks
Patent number
8,911,219
Issue date
Dec 16, 2014
Medora Environmental, Inc.
Douglas P. Walter
E03 - WATER SUPPLY SEWERAGE
Information
Patent Grant
Water circulation systems with air stripping arrangements for munic...
Patent number
8,523,984
Issue date
Sep 3, 2013
Medora Environmental, Inc.
Corey M. Simnioniw
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Submersible, circulation system for relatively small bodies of wate...
Patent number
8,226,292
Issue date
Jul 24, 2012
Medora Environmental, Inc.
Douglas P. Walter
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Water-cooled distilling apparatus
Patent number
6,428,656
Issue date
Aug 6, 2002
PSI-ETS, a North Dakota Partnership
Joel J. Bleth
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Patents Applications
last 30 patents
Information
Patent Application
METHOD AND APPARATUS FOR TREATING POTABLE WATER IN MUNICIPAL AND SI...
Publication number
20180305224
Publication date
Oct 25, 2018
MEDORA ENVIRONMENTAL, INC.
Corey M. Simnioniw
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
SUBMERSIBLE WATER CIRCULATION SYSTEM FOR ENCLOSED TANKS
Publication number
20170321669
Publication date
Nov 9, 2017
MEDORA ENVIRONMENTAL, INC.
Douglas P. Walter
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
AIR-POWERED WATER CIRCULATION SYSTEMS FOR PONDS, LAKES, MUNICIPAL W...
Publication number
20150108054
Publication date
Apr 23, 2015
MEDORA ENVIRONMENTAL, INC.
Joel J. Bleth
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
SUBMERSIBLE WATER CIRCULATION SYSTEM FOR ENCLOSED TANKS
Publication number
20150101691
Publication date
Apr 16, 2015
MEDORA ENVIRONMENTAL, INC.
Douglas P. Walter
E03 - WATER SUPPLY SEWERAGE
Information
Patent Application
METHOD AND APPARATUS FOR TREATING POTABLE WATER IN MUNICIPAL AND SI...
Publication number
20140224747
Publication date
Aug 14, 2014
MEDORA ENVIRONMENTAL, INC.
Corey M. Simnioniw
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
SUBMERSIBLE WATER CIRCULATION SYSTEM FOR ENCLOSED TANKS
Publication number
20130068326
Publication date
Mar 21, 2013
MEDORA ENVIRONMENTAL, INC.
Douglas P. Walter
E03 - WATER SUPPLY SEWERAGE
Information
Patent Application
WATER CIRCULATION SYSTEMS WITH AIR STRIPPING ARRANGEMENTS FOR MUNIC...
Publication number
20120067799
Publication date
Mar 22, 2012
MEDORA ENVIRONMENTAL, INC.
Corey M. Simnioniw
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL