Inventor · disambiguated record
John Derek Lewins
Also filed as: LEWINS JOHN D · LEWINS JOHN DEREK
4 granted patents·37 citations·filing 1983–2004
72Inventor score
Top patents by PatentIndex Score
4 records- 0170US4529105AValve unit for liquid containerLEER KONINKLIJKE EMBALLAGE·Filed 1983·Granted Jul 16, 1985·27 cites·3 claims
- 0245US7282080B2Process for extracting platinum group metalsPLATTECH PTY LTD·Filed 2004·Granted Oct 16, 2007·2 cites·26 claims
- 0342US7544231B2Recovery of platinum group metalsLONMIN PLC·Filed 2004·Granted Jun 9, 2009·1 cites·14 claims
- 0435US4723566AValve closureLEER KONINKLIJKE EMBALLAGE·Filed 1985·Granted Feb 9, 1988·7 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →