Joseph R. Hannum

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Blue Bell, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Wide rectangular clarifiers
- Patent number 6,279,752
- Issue date Aug 28, 2001
- Polychem Corporation
- Joseph R. Hannum
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Plastic flight type water treatment system for rectangular clarifiers
- Patent number 5,992,644
- Issue date Nov 30, 1999
- Polychem Corporation
- Joseph R. Hannum
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Composite non-metallic and metallic chain for water treatment systems
- Patent number 5,806,658
- Issue date Sep 15, 1998
- Polychem Corporation
- Joseph R. Hannum
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Plastic flight type water treatment system for rectangular clarifiers
- Patent number 5,788,837
- Issue date Aug 4, 1998
- Polychem Corporation
- Joseph R. Hannum
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Split sprocket with quick locking mechanism
- Patent number 5,295,917
- Issue date Mar 22, 1994
- The Budd Company
- Joseph R. Hannum
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...