Inventor · disambiguated record
Ralph D. Martin
Also filed as: MARTIN RALPH D
3 granted patents·170 citations·filing 1979–1997
77Inventor score
Top patents by PatentIndex Score
3 records- 0195US4293480AUrethane binder compositions for no-bake and cold box foundry application utilizing isocyanato-urethane polymersASHLAND OIL INC·Filed 1979·Granted Oct 6, 1981·44 cites·24 claims
- 0288US4490999ADoor lock with indicatorCASTLE NIAL K·Filed 1982·Granted Jan 1, 1985·104 cites·5 claims
- 0342US5787664AHandrail assemblyFiled 1997·Granted Aug 4, 1998·22 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →