Assignee

BULL DOG TOOL INC

US·2 granted patents·49 citations·filing 1983–1996

Technology mixE21B1 F04B1

Top patents by PatentIndex Score

2 records

0169US4493383AWell clean out toolBULL DOG TOOL INC·Filed 1983·Granted Jan 15, 1985·39 cites·9 claims
0240US5743336APump-packing device for down-hole well arrangementsBULL DOG TOOL INC·Filed 1996·Granted Apr 28, 1998·10 cites·15 claims

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