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Nitrate analyzer
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Patent number 5,061,638
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Issue date Oct 29, 1991
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Boyle Engineering Corporation
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Gerald A. Guter
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G01 - MEASURING TESTING
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Reactor analysis system
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Patent number 5,055,260
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Issue date Oct 8, 1991
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Union Carbide Industrial Gases Technology Corporation
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Raymond P. Roberge
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G01 - MEASURING TESTING
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Microwave-based Kjeldahl method
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Patent number 4,946,797
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Issue date Aug 7, 1990
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CEM Corporation
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Edwin D. Neas
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Reactor analysis system
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Patent number 4,891,186
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Issue date Jan 2, 1990
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Union Carbide Corporation
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Raymond P. Roberge
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G01 - MEASURING TESTING
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Digestion process
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Patent number 4,645,745
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Issue date Feb 24, 1987
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Hach Company
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Clifford C. Hach
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G01 - MEASURING TESTING
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Digestion process
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Patent number 4,645,746
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Issue date Feb 24, 1987
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Hach Company
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Clifford C. Hach
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G01 - MEASURING TESTING
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Gas analyzer or the like
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Patent number 4,526,755
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Issue date Jul 2, 1985
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International Telephone & Telegraph Corporation
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Arthur L Vincent
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G01 - MEASURING TESTING
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