Daniel M. Spearman

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Shoreview, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Inlet filter
- Patent number D410727
- Issue date Jun 8, 1999
- Porous Media Corporation
- Chaouki A. Khamis
- D23 - Environmental heating and cooling
Information Patent Grant
Reinforced filter tube and method of making the same
- Patent number 4,836,931
- Issue date Jun 6, 1989
- Porous Media Corporation
- Michael R. Spearman
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method of making a reinforced filter tube
- Patent number 4,814,033
- Issue date Mar 21, 1989
- Porous Media Corporation
- Michael R. Spearman
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL