Inventor · disambiguated record
Eckehard Weigand
Also filed as: WEIGAND ECKEHARD
3 granted patents·51 citations·filing 1985–1989
72Inventor score
Top patents by PatentIndex Score
3 records- 0178US4575520ARigid, closed-cell, flame-resistant polyurethane foamsBAYER AG·Filed 1985·Granted Mar 11, 1986·27 cites·9 claims
- 0253US4945120AProcess for the production of polyurethane foams using sterically hindered aromatic diaminesKOPP RICHARD·Filed 1989·Granted Jul 31, 1990·18 cites·13 claims
- 0341US4853417AProcess for manufacturing rigid polyurethane foamSUMITOMO BAYER URETHANE CO·Filed 1988·Granted Aug 1, 1989·6 cites·5 claims
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