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HS Halliburton Energy Services: 1 patents #87 of 285Top 35%

JW James Walker: 1 patents #1 of 2Top 50%

📍 Waterlooville, IN: #1 of 1 inventorsTop 100%

Overall (2002): #146,445 of 266,432Top 55%

Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6357540	Rotary drill bit with lip seal in roller cone bit	Philip D. Embury	2002-03-19