Inventor · disambiguated record
Norman Lumsden
Also filed as: LUMSDEN NORMAN
4 granted patents·243 citations·filing 1983–1997
82Inventor score
Top patents by PatentIndex Score
4 records- 0189US4629221APipe connectorsHUNTING OILFIELD SERVICES LTD·Filed 1984·Granted Dec 16, 1986·107 cites·39 claims
- 0281US4525001APipe connector with interengagable tubular pin and tubular box membersHUNTING OILFIELD SERVICES LTD·Filed 1983·Granted Jun 25, 1985·49 cites·6 claims
- 0367US5954374APipe connectorsOIL STATES IND UK LTD·Filed 1997·Granted Sep 21, 1999·60 cites·37 claims
- 0464US4561683APipe connector with interengageable tubular pin and tubular box membersHUNTING OILFIELD SERVICES LTD·Filed 1983·Granted Dec 31, 1985·27 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →