Inventor · disambiguated record
Hilda Howell
Also filed as: HOWELL HILDA
3 granted patents·49 citations·filing 1979–1980
71Inventor score
Files withKOPPERS CO INC3
Top patents by PatentIndex Score
3 records- 0185US4267279APolyester composition stabilized against gel-time drift with amine salt and method for making sameKOPPERS CO INC·Filed 1979·Granted May 12, 1981·37 cites·80 claims
- 0253US4325841ANon-free-amine promoter system for polyester compositionKOPPERS CO INC·Filed 1980·Granted Apr 20, 1982·9 cites·6 claims
- 0329US4304878AMethod for treating polyester resin system with organic acid to suppress gel-time driftKOPPERS CO INC·Filed 1979·Granted Dec 8, 1981·3 cites·33 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →