Inventor · disambiguated record
Brian T. Sanfead
Also filed as: SANFEAD BRIAN T
3 granted patents·52 citations·filing 1990–1996
72Inventor score
Technology areasE21B
Top patents by PatentIndex Score
3 records- 0146US5154244ATransmission sleeve for a down hole hammerD T A PTY LTD·Filed 1991·Granted Oct 13, 1992·26 cites·6 claims
- 0233USRE36002ETransmission sleeve for a down hole hammerSDS DIGGER TOOLS PTY LTD·Filed 1996·Granted Dec 22, 1998·15 cites·6 claims
- 0330US5085285ACompensating ring for a down hole hammerD T A PTY LTD·Filed 1990·Granted Feb 4, 1992·11 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →