IP Library › Granted Patent US 5,158,594
Granted Patent Utility
US 5,158,594 · App. 06/436,222

Granulated nitrogen-phosphorus-potassium-sulfur fertilizer from waste gypsum slurry

Inventor: Ronald E. Oxford
Patented Case View Patent ↗
Granted: Oct 27, 1992 Filed: Oct 25, 1982
Inventor
Ronald E. Oxford

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Quick Facts
Patent No.
US 5,158,594
App. No.
06/436,222
Filed
1982-10-25
Granted
1992-10-27
Kind
A