Not to be contrarian, but the statement "patronyms in Russian are always "ovitch" never "ov" is not consistent with my extensive experience. I have records of Russian family (from throughout the Pale)....with patronymics ending in ovich, ovitch, ovitz, ovic/s, owitch, owic/s, owich, ov, ova, ovna and ovka. There may be a tendency to prefer certain versions in certain time period or in certain types of records. But there is no "always" for name endings or their spelling in transliteration---at least not in the past.
aka Debra Katz
Pacific Beach CA USA