P

Inventor

BIRKELBACH RALF

DE6 patents
⚠️ This page may combine multiple inventors who share the name “BIRKELBACH RALF”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

EJOT GMBH & CO KG

4 patents
US8043021B2Oct 25, 2011

Fastening element for a friction-welded joint

EJOT GMBH & CO KG16 citations81
US7021877B2Apr 4, 2006

Self-tapping screw

EJOT GMBH & CO KG16 citations77
US12372111B2Jul 29, 2025

Screw for screwing into plastic

EJOT GMBH & CO KG0 citations42
US11754110B2Sep 12, 2023

Self-tapping screw

EJOT GMBH & CO KG0 citations42

EJOT VERBINDUNGSTECH GMBH & CO

2 patents
US6722833B2Apr 20, 2004

Self-threading screw with straight load flank and angled rear flank profile

EJOT VERBINDUNGSTECH GMBH & CO21 citations89
US5882161AMar 16, 1999

Self-drilling and thread-forming screw having a flow-forming section

EJOT VERBINDUNGSTECH GMBH & CO41 citations89