Inventor · disambiguated record
Friedrich H. Langer
Also filed as: LANGER FRIEDRICH · LANGER FRIEDRICH H
5 granted patents·358 citations·filing 1984–1989
85Inventor score
Top patents by PatentIndex Score
5 records- 0192US4984633ANozzle effect protectors, centralizers, and stabilizers and related methodsWEATHERFORD US INC·Filed 1989·Granted Jan 15, 1991·125 cites·13 claims
- 0292US4589495AApparatus and method for inserting flow control means into a well casingWEATHERFORD US INC·Filed 1984·Granted May 20, 1986·126 cites·18 claims
- 0378US4794986AReticulated centralizing apparatusWEATHERFORD US INC·Filed 1987·Granted Jan 3, 1989·56 cites·11 claims
- 0467US4979562AFloat equipment including float collars and modular plugs for well operationsWEATHERFORD US INC·Filed 1988·Granted Dec 25, 1990·39 cites·3 claims
- 0549US4913768AProcess for producing electrical conductor boardsBAYER AG·Filed 1989·Granted Apr 3, 1990·12 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →