The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 1977
Filed:
Nov. 11, 1974
Applicant:
Inventors:
Klaus Unger, Darmstadt, DT;
Jurgen Schick-Kalb, Eichenzell near Fulda, DT;
Assignee:
Merck Patent Gesellschaft mit beschrankter Haftung, Darmstadt, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
2604 / ; 252426 ; 252428 ; 252430 ;
Abstract
Process for the preparation of modified, porous silicon dioxides by the hydrolytic polycondensation of tetraalkoxysilanes or polyalkoxysiloxanes in the heterogenous phase in the presence of an organoalkoxysilane.
Unger, Klaus. (1977). Preparation of organically modified silicon dioxides (U.S. Patent No. 4017528). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4017528
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile