PATENTS:

1. US Patent 05637387 “Storage Stable Advanced Polymaleimide Compositions” Roger Tietze & Ben Chin Ciba -Geigy 1997.
2. US Patent 05240981 “Flame Retardant Polyimide System” Roger Tietze & Ben Chin Ciba-Geigy 1993
3. US Patent US20100330287 “Halogen Free Benzoxazine based curable compositions for High Tg Applications” Roger Tietze Hutsman Advanced Materials 2010″.
4. US Patent 20110152453 A1 ” Benzoxazine Compounds Derived From Phenolphthalein having Flame Retardant Properties and a Procss for their Preparation” Roger Tietze Huntsman Advanced Materials 2011
5. US Patent 20100059174 A1 “Boroxine Derivatives as Flame Retardants” Roger Tietze& Yefim Blakyman Huntsman Advanced Materials 2010
6. US Patent 20120003892A1 “Phosphoric Acid Resistant Polymaleimide Prepolymer compositions” Roger Tietze & Yen Loan Nguyen Huntsman Advanced Materials 2012
7. US Patent 20120046388A1 “Liquid Benzoxazine based Resin System” Roger Tietze & Yen Loan Nguyen Huntsman Advanced Materials 2012
8. US Patent 20120318571 “Low Dielectric Loss Thermoset resin System at High Frequency for use in Electrical components” Roger Tietze & Yen Loan Nguyen Huntsman Advanced Materials 2012
9. US Patent 08445699 “Phosphoric Acid Resistant Polymaleimide Prepolymer compositions” Roger Tietze & Yen Loan Nguyen Huntsman Advanced Materials 2013