Inventor

SEYFRIED PHILIPP A

US2 patents

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

ATTARD WILLIAM P

1 patent

US9903334B2Feb 27, 2018

Low speed pre-ignition knock detection

ATTARD WILLIAM P1 citations43

GM GLOBAL TECH OPERATIONS LLC

1 patent

US11629625B1Apr 18, 2023

Systems and methods of engine exhaust air injection before and after catalytic converters

GM GLOBAL TECH OPERATIONS LLC0 citations41