| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 05.99 |
| PATENT ASSIGNEE | First Chemical Corp (Pascafoula; Miss) |
| PATENT CLAIMS |
Mfg process - Reacting benzene with thiosalicylic acid in presence of SO4H2 to form thioxanthone |
| PATENT PHOTOCOPY | Available on request |
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