Girma Wolde-Michael

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Little Canada, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Fluid purification system
- Patent number 4,521,313
- Issue date Jun 4, 1985
- Donaldson Company, Inc.
- Girma Wolde-Michael
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Gas, fluid and mineral solids separation and reclamation system
- Patent number 4,515,607
- Issue date May 7, 1985
- Donaldson Company, Inc.
- Girma Wolde-Michael
- E21 - EARTH DRILLING MINING
Information Patent Grant
Oil concentrator
- Patent number 4,422,931
- Issue date Dec 27, 1983
- Girma Wolde-Michael
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Device for limiting vortex flow
- Patent number 4,375,411
- Issue date Mar 1, 1983
- Donaldson Company, Inc.
- Girma Wolde-Michael
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Coolant recovery system
- Patent number 4,366,069
- Issue date Dec 28, 1982
- Donaldson Company, Inc.
- Denis J. Dudrey
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
High efficiency settling system
- Patent number 4,366,058
- Issue date Dec 28, 1982
- Donaldson Company, Inc.
- Girma Wolde-Michael
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL