Inventor
RATCHFORD MICHAEL
US4 patents
Patents
4 patentsUS4646241AFeb 24, 1987
Solid-state flight data recording system
UNITED TECHNOLOGIES CORP143 citations94
US4470116ASep 4, 1984
Digital flight data recording system
UNITED TECHNOLOGIES CORP99 citations93
US4682292AJul 21, 1987
Fault tolerant flight data recorder
UNITED TECHNOLOGIES CORP134 citations92
US4633473ADec 30, 1986
Fault tolerant communications interface
UNITED TECHNOLOGIES CORP35 citations86