Joseph A. Durda

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Wazatta, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Aeration apparatus having a deicing mechanism and control circuit t...
- Patent number 5,078,923
- Issue date Jan 7, 1992
- Aeration Industries International, Inc.
- Joseph Durda
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Propeller aerator with peripheral injection of fluid and method of...
- Patent number 4,954,295
- Issue date Sep 4, 1990
- Aeration Industries, Inc.
- Joseph A. Durda
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Aeration apparatus havine a deicing mechanism and control circuit t...
- Patent number 4,882,099
- Issue date Nov 21, 1989
- Aeration Industries, Inc.
- Joseph A. Durda
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Oscillating propeller type aerator apparatus and method
- Patent number 4,806,251
- Issue date Feb 21, 1989
- Aeration Industries, Inc.
- Joseph A. Durda
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE