Assignee
BRISSONNEAU & LOTZ
FR·14 granted patents·308 citations·filing 1975–1991
Top patents by PatentIndex Score
14 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
- 0275US4738321AProcess and apparatus for vertical racking of drilling shafts on a drilling towerBRISSONNEAU & LOTZ·Filed 1986·Granted Apr 19, 1988·73 cites·5 claims
- 0370US4245941ADevice for storing an angle and the application thereof to the handling of loadsBRISSONNEAU & LOTZ·Filed 1978·Granted Jan 20, 1981·23 cites·10 claims
- 0465US4901982AMethod intended to facilitate disengagement of mechanisms applying high stress to one anotherBRISSONNEAU & LOTZ·Filed 1988·Granted Feb 20, 1990·23 cites·4 claims
- 0564US4048547ATorque responsive deviceBRISSONNEAU & LOTZ·Filed 1975·Granted Sep 13, 1977·21 cites·8 claims
- 0663US4453858ASafety device for marine platformBRISSONNEAU & LOTZ·Filed 1981·Granted Jun 12, 1984·22 cites·8 claims
- 0753US4422683ALevel detector and its application to a grabbing apparatus for containers or the likeBRISSONNEAU & LOTZ·Filed 1981·Granted Dec 27, 1983·13 cites·16 claims
- 0850US4495824AMeans of measuring stress affecting mountings for jacking mechanisms on ocean platformsBRISSONNEAU & LOTZ·Filed 1983·Granted Jan 29, 1985·13 cites·5 claims
- 0945US4585079AMethod and a machine for handling drill pipesBRISSONNEAU & LOTZ·Filed 1983·Granted Apr 29, 1986·15 cites·4 claims
- 1044US4743055AAutomatic gripper for gripping and holding a rod, especially on a drilling rigBRISSONNEAU & LOTZ·Filed 1986·Granted May 10, 1988·21 cites·25 claims
- 1144US4443000AFlexible couplings for mechanical jacking devices used in the installation of marine platformsBRISSONNEAU & LOTZ·Filed 1981·Granted Apr 17, 1984·14 cites·4 claims
- 1234US4545269AMachine to apply a screwing or unscrewing torqueBRISSONNEAU & LOTZ·Filed 1983·Granted Oct 8, 1985·8 cites·3 claims
- 1332US4456224AJacking mechanism for self-raising ocean platformsBRISSONNEAU & LOTZ·Filed 1982·Granted Jun 26, 1984·5 cites·7 claims
- 1429US5318386AManeuvering mechanisms for marine platforms, method for managing these mechanisms and installation for implementing the methodBRISSONNEAU & LOTZ·Filed 1991·Granted Jun 7, 1994·5 cites·20 claims
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