Assignee
A Z INT TOOL CO
US·10 granted patents·725 citations·filing 1974–1986
Top patents by PatentIndex Score
10 records- 0195US4660863ACasing patch sealA Z INT TOOL CO·Filed 1985·Granted Apr 28, 1987·180 cites·15 claims
- 0292US4722615ADrilling apparatus and cutter thereforA Z INT TOOL CO·Filed 1986·Granted Feb 2, 1988·73 cites·16 claims
- 0392US4080115AProgressive cavity drive trainA Z INT TOOL CO·Filed 1976·Granted Mar 21, 1978·94 cites·4 claims
- 0489US4646826AWell string cutting apparatusA Z INT TOOL CO·Filed 1985·Granted Mar 3, 1987·96 cites·8 claims
- 0588US4083405AWell drilling method and apparatus thereforA Z INT TOOL CO·Filed 1977·Granted Apr 11, 1978·76 cites·9 claims
- 0684US4550781AMethod of and apparatus for cutting and recovering of submarine surface casingA Z INT TOOL CO·Filed 1984·Granted Nov 5, 1985·83 cites·12 claims
- 0781US4533003ADrilling apparatus and cutter thereforA Z INT TOOL CO·Filed 1984·Granted Aug 6, 1985·54 cites·10 claims
- 0861US4054040ATelescoping torque transmission apparatusA Z INT TOOL CO·Filed 1974·Granted Oct 18, 1977·26 cites·6 claims
- 0956US3983936AMethod of and apparatus for cutting and recovering of submarine surface casingA Z INT TOOL CO·Filed 1975·Granted Oct 5, 1976·28 cites·7 claims
- 1046US3984991AAnchor and method of setting anchorA Z INT TOOL CO·Filed 1975·Granted Oct 12, 1976·15 cites·12 claims
Join the waitlist — get patent alerts
Get an alert when A Z INT TOOL CO files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →