Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Process for the preparation of 9,10-dihydro-9-oxa-10-organylphosphaphenanthrene-10-oxide and derivatives of the same substituted on the phenyl groups

US Patent 7317120 · Granted Jan 8, 2008

Assignee

Inventors

View full patent text on Google Patents →