Inventor · disambiguated record
Roland Le Roc'H
Also filed as: LE ROC H ROLAND
3 granted patents·75 citations·filing 1983–1983
73Inventor score
Technology areasE21B
Files withBRISSONNEAU & LOTZ3
Top patents by PatentIndex Score
3 records- 0177US4567952AProcess and apparatus for locking and releasing of a drilling shaft with essentially vertical axisBRISSONNEAU & LOTZ·Filed 1983·Granted Feb 4, 1986·52 cites·4 claims
- 0245US4585079AMethod and a machine for handling drill pipesBRISSONNEAU & LOTZ·Filed 1983·Granted Apr 29, 1986·15 cites·4 claims
- 0334US4545269AMachine to apply a screwing or unscrewing torqueBRISSONNEAU & LOTZ·Filed 1983·Granted Oct 8, 1985·8 cites·3 claims
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