John A. Kupke

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Annapolis, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for rehabilitating a traveling bridge filter u...
- Patent number 6,733,670
- Issue date May 11, 2004
- Parkson Corporation
- John A. Kupke
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Filter underdrain with prefabricated cells
- Patent number 6,048,132
- Issue date Apr 11, 2000
- Agency Environmental, Inc.
- John A. Kupke
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Filtration system with traveling plenum
- Patent number 5,891,335
- Issue date Apr 6, 1999
- Agency Environmental, Inc.
- John A. Kupke
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Apparatus and method for automatically controlling the permeability...
- Patent number 5,234,600
- Issue date Aug 10, 1993
- Agency Environmental, Inc.
- John A. Kupke
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Apparatus and method for rehabilitating a traveling bridge filter u...
- Publication number 20020113001
- Publication date Aug 22, 2002
- John A. Kupke
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL