Inventor · disambiguated record
Drummond Whiteford
Also filed as: WHITEFORD DRUMMOND · WHITEFORD DRUMMOND WILKINSON
3 granted patents·117 citations·filing 1982–1996
76Inventor score
Technology areasE21B
Top patents by PatentIndex Score
3 records- 0168US4446922AAdjustable safety valveBAKER OIL TOOLS INC·Filed 1982·Granted May 8, 1984·37 cites·16 claims
- 0260US5441111ABridge plugPETROLEUM ENG SERVICES·Filed 1994·Granted Aug 15, 1995·39 cites·10 claims
- 0357US5862864AWell safety systemPETROLEUM ENG SERVICES·Filed 1996·Granted Jan 26, 1999·41 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →