Inventor · disambiguated record
Charles E. Koehler
Also filed as: KOEHLER CHARLES E
9 granted patents·190 citations·filing 1976–1993
89Inventor score
Top patents by PatentIndex Score
9 records- 0192US5312888AFlexible polyurethane rebond foam having improved tear resistance and method for the preparation thereofDOW CHEMICAL CO·Filed 1993·Granted May 17, 1994·67 cites·8 claims
- 0281US5290818AFlexible polyurethane rebond foam having improved tear resistance and method for the preparation thereofDOW CHEMICAL CO·Filed 1992·Granted Mar 1, 1994·34 cites·14 claims
- 0381US4904704ARigid foams prepared from treated toluene diisocyanate residueDOW CHEMICAL CO·Filed 1988·Granted Feb 27, 1990·27 cites·46 claims
- 0478US4246364AProcess for polyisocyanurate foams based on an amide-diol blendUPJOHN CO·Filed 1980·Granted Jan 20, 1981·26 cites·20 claims
- 0563US4339343ANovel process and productUPJOHN CO·Filed 1980·Granted Jul 13, 1982·15 cites·12 claims
- 0657US4256802AProcess for polyisocyanurate foams suitable for panelsUPJOHN CO·Filed 1980·Granted Mar 17, 1981·12 cites·10 claims
- 0742US4289858APolyol-fluorocarbon-aminetriol blend and polyisocyanurate foams thereforeUPJOHN CO·Filed 1980·Granted Sep 15, 1981·8 cites·17 claims
- 0824US4179094APortable, expandable mold for fabricating substantially isotropic isocyanate based polymer foam bunsUPJOHN CO·Filed 1978·Granted Dec 18, 1979·0 cites·7 claims
- 0924US4104346AProcess for molding a substantially isotropic isocyanate-based polymer foam bunUPJOHN CO·Filed 1976·Granted Aug 1, 1978·1 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →