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Richard N. Hill
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Lakeland, FL, US
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last 30 patents
Information
Patent Grant
Foam control during production of phosphoric acid
Patent number
4,391,784
Issue date
Jul 5, 1983
Richard N. Hill
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Post precipitation control of low-iron phosphoric acid, without per...
Patent number
4,364,912
Issue date
Dec 21, 1982
W. R. Grace & Co.
Richard N. Hill
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Stabilized wet process phosphoric acid
Patent number
4,305,915
Issue date
Dec 15, 1981
W. R. Grace & Co.
Richard N. Hill
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Aeration of phosphoric acid
Patent number
4,294,809
Issue date
Oct 13, 1981
W. R. Grace & Co.
Richard N. Hill
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Phosphoric acid crystallizer underflow return
Patent number
4,293,311
Issue date
Oct 6, 1981
W. R. Grace & Co.
Richard N. Hill
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Oxidative control of post precipitation in phosphoric acid
Patent number
4,279,877
Issue date
Jul 21, 1981
W. R. Grace & Co.
Richard N. Hill
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Re-post precipitation control
Patent number
4,250,154
Issue date
Feb 10, 1981
W. R. Grace & Co.
Richard N. Hill
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Production of stabilized wet process phosphoric acid
Patent number
4,248,846
Issue date
Feb 3, 1981
W. R. Grace & Co.
Richard N. Hill
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Reduction of magnesium and other cations in phosphoric acid
Patent number
4,242,198
Issue date
Dec 30, 1980
W. R. Grace & Co.
Richard N. Hill
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Settling clarifier
Patent number
4,222,879
Issue date
Sep 16, 1980
W. R. Grace & Co.
Richard N. Hill
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Production of stabilized wet process phosphoric acid
Patent number
4,164,550
Issue date
Aug 14, 1979
W. R. Grace & Co.
Richard N. Hill
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Production of stabilized wet process phosphoric acid
Patent number
4,110,422
Issue date
Aug 29, 1978
W. R. Grace & Co.
Richard N. Hill
C01 - INORGANIC CHEMISTRY