GENEVA, Nov. 12 -- EVONIK OPERATIONS GMBH (Rellinghauser Strasse 1-1145128 Essen) filed a patent application (PCT/EP2025/061462) for "CAUSTIC LEACHED RICE HUSK ASH AS ABSORBENT MATERIAL" on Apr 28, 2025. With publication no. WO/2025/228852, the details related to the patent application was published on Nov 06, 2025.
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).
Inventor(s): HUA, Duenwu (307 Caspian CourtEdgewood, Maryland 21040), MOTL, Nathan (621 Kildonan CourtBel Air, Maryland 21015)
Abstract: The invention relates to caustic leached RHA absorbent materials obtained as a residue during alkaline silica pro...