Inventor
LANGENFELD MICHAEL DAVID
US5 patents
⚠️ This page may combine multiple inventors who share the name “LANGENFELD MICHAEL DAVID”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VERMEER MFG CO
4 patentsUS11697967B2Jul 11, 2023
Pullback system for drilling tool
VERMEER MFG CO3 citations69
US11149501B2Oct 19, 2021
Rod coupler and coupled rod assembly
VERMEER MFG CO5 citations69
US12352165B2Jul 8, 2025
Pullback system for drilling tool
VERMEER MFG CO0 citations59
US11913287B2Feb 27, 2024
Mounting arrangement for pullback adaptor
VERMEER MFG CO0 citations48