Inventor · disambiguated record
Heinrich Friederich
Also filed as: FRIEDERICH HEINRICH
5 granted patents·8 pending applications·119 citations·filing 1999–2007
82Inventor score
Top patents by PatentIndex Score
13 records- 0189US8348572B2Hole-forming and thread-forming screwEJOT GMBH & CO KG·Filed 2007·Granted Jan 8, 2013·29 cites·20 claims
- 0279US6540462B1Screw connectionEJOT VERBINDUNGSTECH GMBH & CO·Filed 2000·Granted Apr 1, 2003·32 cites·20 claims
- 0375US6338600B2Self-tapping, corrosion-resistant screw with hardened tipEJOT VERBINDUNGSTECH GMBH & CO·Filed 1999·Granted Jan 15, 2002·44 cites·17 claims
- 0465US7247099B2Screw with a partially hardened functional tip and process for the production thereofEJOT GMBH & CO KG·Filed 2004·Granted Jul 24, 2007·12 cites·15 claims
- 0556US2006185768A1Fixing element comprising a low-alloyed steel and process for the production thereofEJOT VERBINDUNGSTECH GMBH & CO·Filed 2006·Application pending·0 cites
- 0651US2009311075A1Self-tapping drill screwEJOT GMBH & CO KG·Filed 2007·Application pending·0 cites
- 0750US2007062620A1Fixing element comprising a low-alloyed steel and process for the production thereofEJOT GMBH & CO KG·Filed 2006·Application pending·0 cites
- 0848US2007110544A1Light metal thread-forming screw fastener and method for making sameEJOT VERBINDUNGSTECH GMBH & CO·Filed 2006·Application pending·0 cites
- 0943US6811622B1Semifinished and finished products made of austenitic special steel and method for the production thereofFiled 2000·Granted Nov 2, 2004·2 cites·14 claims
- 1041US2004154705A1Fastening element made of carbon-containing steel and method for the production thereofFiled 2002·Application pending·0 cites
- 1140US2004208724A1Screw element with a spring element formed thereonEJOB GMBH & CO KG·Filed 2004·Application pending·0 cites
- 1236US2002051695A1Light alloy thread-forming screw and its production methodFiled 2001·Application pending·0 cites
- 1336US2007122251A1Cold-rolled fixing screw comprising a self-tapping threadFRIEDERICH HEINRICH·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →