Donald F. Hansen

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Needham, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Atmospheric Aerosol extinctiometer
- Patent number 4,687,337
- Issue date Aug 18, 1987
- The United States of America as represented by the Secretary of the Air Force
- Harold S. Stewart
- G01 - MEASURING TESTING
Information Patent Grant
Present weather observing system utilizing particulate size and vel...
- Patent number 4,613,938
- Issue date Sep 23, 1986
- HSS Inc.
- Donald F. Hansen
- G01 - MEASURING TESTING