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David I. Laber
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Victor, NY, US
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Patents Grants
last 30 patents
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Patent Grant
Closed loop control system for producing a sealed pouch
Patent number
6,452,354
Issue date
Sep 17, 2002
Hudson-Sharp Machine Co.
W. David Ellsworth
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Gusset folding mechanism and method for plastic bag making machine
Patent number
5,749,822
Issue date
May 12, 1998
Proven Designs, Inc.
William D. Ellsworth
B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
Information
Patent Grant
Machine and associated apparatus for attaching zippers to plastic bags
Patent number
5,529,659
Issue date
Jun 25, 1996
Proven Designs, Inc.
William D. Ellsworth
B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
Patents Applications
last 30 patents
Information
Patent Application
CLOSED LOOP CONTROL SYSTEM FOR PRODUCING A SEALED POUCH
Publication number
20020121874
Publication date
Sep 5, 2002
W. David Ellsworth
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL