Inventor · disambiguated record
Ronald C. Zumstein
Also filed as: ZUMSTEIN RONALD C
3 granted patents·25 citations·filing 1988–1997
65Inventor score
Top patents by PatentIndex Score
3 records- 0165US4923954AProduction of particulate polyimide polymersETHYL CORP·Filed 1988·Granted May 8, 1990·21 cites·18 claims
- 0233US5847202ARacemization process for optically active carboxylic acids or salts or esters thereofALBEMARLE CORP·Filed 1997·Granted Dec 8, 1998·1 cites·27 claims
- 0331US4943682AProduction of particulate polyimide polymersETHYL CORP·Filed 1988·Granted Jul 24, 1990·3 cites·29 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →