NL

Norman Lumsden

H( Hunting Oilfield Services (Uk): 3 patents #6 of 19Top 35%
OL Oil States Industries (Uk) Limited: 1 patents #8 of 11Top 75%
Overall (All Time): #1,283,848 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5954374 Pipe connectors John Gallagher 1999-09-21
4629221 Pipe connectors John D. McGugan 1986-12-16
4561683 Pipe connector with interengageable tubular pin and tubular box members Brian K. Phillips 1985-12-31
4525001 Pipe connector with interengagable tubular pin and tubular box members Brian K. Phillips 1985-06-25