Inventor

HAMMELEF DAVID M

US2 patents

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

GM GLOBAL TECH OPERATIONS INC

1 patent

US8045725B2Oct 25, 2011

Vehicle interior active noise cancellation

GM GLOBAL TECH OPERATIONS INC10 citations79

GM GLOBAL TECH OPERATIONS LLC

1 patent

US12319189B2Jun 3, 2025

Translatable assist handle for a vehicle

GM GLOBAL TECH OPERATIONS LLC3 citations62