Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Spiro(bis)indane polyamide and polyimide copolysiloxanes and method of preparation

Spiro(bis)indane polyamide and polyimide copolysiloxanes and method of preparation

US Patent 4950727 · Granted Aug 21, 1990

Estimated economic value: $6,187,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Polyol compositions2024
Process to make low color polyetherimide by halo-displacement and low color poly2022
Method of preparing polymer particles and polymer particles prepared thereby2022
Methods for the manufacture of an aromatic bisimide and a polyetherimide2022
Synthesis of reactive intermediates for polyetherimides, and uses thereof2022
Methods of manufacture of polyetherimides2021
Method of preparing polyurethanes from oligomeric polyol compositions and polyis2021
Polyurethanes prepared from oligomeric polyol compositions and polyisocyanates2021
Composition comprising oligomeric polyol compositions and polyisocyanates2021
Oligomeric polyol compositions2021
Method of preparing oligomeric polyol compositions2021
Polyetherimide compositions, methods of manufacture, and articles prepared there2021