Roy A. Johnson

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Glen Ellyn, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Boiler operation with decreased NO.sub.x and waste water discharge
- Patent number 5,616,307
- Issue date Apr 1, 1997
- Nalco Fuel Tech
- Leonard Dubin
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Grant
Process for the efficient catalytic reduction of nitrogen oxides
- Patent number 5,298,230
- Issue date Mar 29, 1994
- Nalco Fuel Tech
- Steven C. Argabright
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL