ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,479,763, issued on Nov. 25, was assigned to SIKA TECHNOLOGY AG (Baar, Switzerland).
"Methods for obtaining aggregates and/or powder-type mineral material utilizing process auxiliaries" was invented by Arnd Eberhardt (Winterthur, Switzerland), Patrick Juilland (Bern, Switzerland), Luis Pegado (Brugg, Switzerland), Emmanuel Gallucci (Zurich, Switzerland) and Lukas Frunz (Dietikon, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods of obtaining aggregates and/or pulverulent mineral material from a starting material comprising hardened mineral binder and aggregates utilizing process auxiliaries selected from the group consisting of polycarbo...