Ronald W. Leonard

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Spring Glen, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Tube mat heat exchanger
- Patent number 4,349,070
- Issue date Sep 14, 1982
- Michael F. Zinn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Tube mat heat exchanger
- Patent number 4,270,596
- Issue date Jun 2, 1981
- Bio-Energy Systems, Inc.
- Michael F. Zinn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL