Inventor · disambiguated record
Charles R. Costin
Also filed as: COSTIN CHARLES R · COSTIN CHARLES RICHARD
3 granted patents·39 citations·filing 1975–1979
71Inventor score
Technology areasC08F
Files withROHM & HAAS3
Top patents by PatentIndex Score
3 records- 0179US4269943AThermally stable resins prepared by bromination or chlorination of aromatic polymer beads followed by sulphonationROHM & HAAS·Filed 1979·Granted May 26, 1981·28 cites·10 claims
- 0249US4139459AQuinolizinium anion exchange resins and monomers and methods for making themROHM & HAAS·Filed 1977·Granted Feb 13, 1979·6 cites·8 claims
- 0346US4046766AQuinolizinium resins and monomers and methods for making themROHM & HAAS·Filed 1975·Granted Sep 6, 1977·5 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →