Inventor

FRIEDERICH HEINRICH

DE5 patents

⚠️ This page may combine multiple inventors who share the name “FRIEDERICH HEINRICH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

EJOT GMBH & CO KG

2 patents

US8348572B2Jan 8, 2013

Hole-forming and thread-forming screw

EJOT GMBH & CO KG29 citations90

US7247099B2Jul 24, 2007

Screw with a partially hardened functional tip and process for the production thereof

EJOT GMBH & CO KG12 citations75

EJOT VERBINDUNGSTECH GMBH & CO

2 patents

US6540462B1Apr 1, 2003

Screw connection

EJOT VERBINDUNGSTECH GMBH & CO32 citations88

US6338600B2Jan 15, 2002

Self-tapping, corrosion-resistant screw with hardened tip

EJOT VERBINDUNGSTECH GMBH & CO44 citations88

(unassigned)

1 patent

US6811622B1Nov 2, 2004

Semifinished and finished products made of austenitic special steel and method for the production thereof

2 citations57