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Randal M. Wenthold
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Belle Plaine, MN, US
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Patents Grants
last 30 patents
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Patent Grant
Method and product for cleaning hollow fiber material and filter
Patent number
6,261,457
Issue date
Jul 17, 2001
Minntech Corporation
Randal Marvin Wenthold
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Patent Grant
Hollow fiber membranes and method of manufacture
Patent number
5,762,798
Issue date
Jun 9, 1998
Minntech Corporation
Randal M. Wenthold
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Hollow fiber membranes and method of manufacture
Patent number
5,683,584
Issue date
Nov 4, 1997
Minntech Corporation
Randal M. Wenthold
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL