HH

Hilda Howell

KO Koppers: 3 patents #12 of 126Top 10%
Overall (All Time): #1,684,461 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4325841 Non-free-amine promoter system for polyester composition 1982-04-20
4304878 Method for treating polyester resin system with organic acid to suppress gel-time drift 1981-12-08
4267279 Polyester composition stabilized against gel-time drift with amine salt and method for making same 1981-05-12