Inventor
BERDAHL DONALD R
US12 patents
⚠️ This page may combine multiple inventors who share the name “BERDAHL DONALD R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GEN ELECTRIC
11 patentsUS4874835AOct 17, 1989
Polyetherimides and precursors therefor from oxydiphtalic anhydride diester and a mixture of diamines
GEN ELECTRIC31 citations92
US4794157ADec 27, 1988
Polyetherimide copolymers, and method for making
GEN ELECTRIC36 citations92
US5106938AApr 21, 1992
Melt crystalline polyetherimides
GEN ELECTRIC23 citations91
US4855391AAug 8, 1989
High temperature stable polyetherimides from oxydiphthalic dianhydride and a mixture of m- and p-phenylene diamines and diaminodiphenyl ether
GEN ELECTRIC21 citations81
US4808731AFeb 28, 1989
Method for making oxydiphthalic anhydride
GEN ELECTRIC20 citations79
US4780544AOct 25, 1988
Method for making oxybisphthalimides
GEN ELECTRIC7 citations73
US4668739AMay 26, 1987
Poly(phenylene ether)-bound UV absorber
GEN ELECTRIC14 citations73
US4665112AMay 12, 1987
Ultraviolet radiation stabilized polyphenylene ether resins
GEN ELECTRIC15 citations73
US4933469AJun 12, 1990
Method for preparing oxybisphthalimides
GEN ELECTRIC17 citations71
US5580741ADec 3, 1996
Chemiluminescence immunoassay for chlorinated aromatic compound detection
GEN ELECTRIC4 citations59
US4746720AMay 24, 1988
Polyimides and method for making
GEN ELECTRIC1 citations51