Dean A. Caldwell

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DeRidder, LA, US

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Patents Grantslast 30 patents

Information Patent Grant
System and method for aeration by air infusion
- Patent number 10,301,202
- Issue date May 28, 2019
- Airmaster Aerator L.L.C.
- Dean A. Caldwell
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
System and method for aeration
- Patent number 9,321,667
- Issue date Apr 26, 2016
- Airmaster Aerator L.L.C.
- Dean A. Caldwell
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Method and apparatus for aerating
- Patent number 6,325,842
- Issue date Dec 4, 2001
- Dean A. Caldwell
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Chlorinator-filter process for sewage treatment
- Patent number 5,624,574
- Issue date Apr 29, 1997
- Dean Caldwell
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Chlorinator-filter system for sewage treatment plants
- Patent number 5,505,840
- Issue date Apr 9, 1996
- Dean Caldwell
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
SYSTEM AND METHOD FOR AERATION BY AIR INFUSION
- Publication number 20170321702
- Publication date Nov 9, 2017
- AIRMASTER AERATOR L.L.C.
- Dean A. Caldwell
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
SYSTEM AND METHOD FOR AERATION
- Publication number 20140076820
- Publication date Mar 20, 2014
- AIRMASTER AERATOR L.L.C.
- Dean A. Caldwell
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE