Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › (N-Substituted benzoyl)halobenzoic acid anhydrides

(N-Substituted benzoyl)halobenzoic acid anhydrides

US Patent 4381266 · Granted Apr 26, 1983

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Restricted radiated heating assembly for high temperature processing2014
Restricted radiated heating assembly for high temperature processing2010
Sink backsplash2002
Process for the manufacture of fluoran compounds1992
Copying material employing fluoran color formers1982
Pyrrolidino and piperidino benz ring substituted phthalides1982
Pyrrolidino and piperidino benz ring substituted phthalides1982
Fluoran compounds1981
3-Indolyl-3-bis-amino-phenyl-phthalide compounds1981
2(Indol-3'-oyl) 3,4,5,6-tetrahalo benzoic acid anhydrides1981
2(Indol-3'-oyl) 3,4,5,6-tetrahalo benzoic acid anhydrides1981
3-Indolyl-3-bis-amino-phenyl-phthalide compounds1981