Martin Lessen

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Rochester, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for extrusion of tubing sheeting and profile s...
- Patent number 5,461,898
- Issue date Oct 31, 1995
- Martin Lessen
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Down-flow batch mixing system
- Patent number 5,454,986
- Issue date Oct 3, 1995
- Martin Lessen
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL