Inventor · disambiguated record
Alfred Ostertag
Also filed as: OSTERTAG ALFRED
17 granted patents·3 pending applications·511 citations·filing 1974–2016
94Inventor score
Files withECOROLL AG WERKZEUGTECHNIK5OSTERTAG ALFRED4EASTMAN CHRISTENSEN CO3CHRISTENSEN DIAMOND PROD CO2CHRISTENSEN INC2
Top patents by PatentIndex Score
20 records- 0192US4947668ARolling milling toolHEGENSCHEIDT GMBH WILHELM·Filed 1989·Granted Aug 14, 1990·53 cites·27 claims
- 0288US4092881AApparatus for making-up and breaking threaded pipe connectionsCHRISTENSEN INC·Filed 1976·Granted Jun 6, 1978·66 cites·18 claims
- 0388US3938853AShrink-fit sleeve apparatus for drill stringsCHRISTENSEN DIAMOND PROD CO·Filed 1974·Granted Feb 17, 1976·68 cites·39 claims
- 0487US4854403AStabilizer for deep well drilling toolsEASTMAN CHRISTENSEN CO·Filed 1988·Granted Aug 8, 1989·94 cites·18 claims
- 0581US4194582ADouble acting shock absorbers for drill stringsCHRISTENSEN INC·Filed 1978·Granted Mar 25, 1980·50 cites·14 claims
- 0681US3945446AStabilizer for drill stringsCHRISTENSEN DIAMOND PROD CO·Filed 1974·Granted Mar 23, 1976·64 cites·11 claims
- 0772US4922739ARoller milling tool unit for a milling machine toolHEGENSCHEIDT GMBH WILHELM·Filed 1989·Granted May 8, 1990·19 cites·20 claims
- 0870US4875531ACore drilling tool with direct driveEASTMAN CHRISTENSEN CO·Filed 1988·Granted Oct 24, 1989·42 cites·8 claims
- 0963US6755065B2Method of and tool for rolling a workpiece, and arrangement of a rolling tool and a workpieceECOROLL AG WERKZEUGTECHNIK·Filed 2002·Granted Jun 29, 2004·10 cites·19 claims
- 1060US9308586B2Paring tool, method for producing a cylinder unit and latheOSTERTAG ALFRED·Filed 2012·Granted Apr 12, 2016·1 cites·17 claims
- 1155US6711976B2Skiving head and process for skiving cylinders and cylinder tubesECOROLL AG WERKZEUGTECHNIK·Filed 2001·Granted Mar 30, 2004·7 cites·18 claims
- 1254US4497383AUndercutting device for anchor holesNORTON CO·Filed 1984·Granted Feb 5, 1985·13 cites·20 claims
- 1353US9616546B2Rolling toolRÖMPP WOLFGANG·Filed 2012·Granted Apr 11, 2017·1 cites·14 claims
- 1451US4878548ANozzle retention system for a drill bitEASTMAN CHRISTENSEN CO·Filed 1988·Granted Nov 7, 1989·23 cites·16 claims
- 1546US10549392B2Hammering device for influencing workpiecesECOROLL AG WERKZEUGTECHNIK·Filed 2016·Granted Feb 4, 2020·0 cites·9 claims
- 1646US9120198B2Rolling body guide with a separately exchangeable rolling body as well as a receiving section and a rolling tool with an associated exchange methodOSTERTAG ALFRED·Filed 2011·Granted Sep 1, 2015·0 cites·12 claims
- 1746US2016082522A1Material-removing machine tool, tool set and method for producing a cylinder having a blind and/or stepped boreECOROLL AG WERKZEUGTECHNIK·Filed 2014·Application pending·0 cites
- 1842US9321135B2Fluidostatic rolling device for surface processing and method for shaping the edge layerOSTERTAG ALFRED·Filed 2012·Granted Apr 26, 2016·0 cites·12 claims
- 1938US2012219370A1Cutting tool, in particular paring tool, drill head, solid drill head or boring head, and cutting machine and methodOSTERTAG ALFRED·Filed 2010·Application pending·0 cites
- 2033US2005107230A1Rolling tool and roller for rolling, particularly deep rolling, a work pieceECOROLL AG WERKZEUGTECHNIK·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →