It's not even clear that the premise is true. There's lots of 'research' done in the big tech companies.
The biggest reason why companies don't seek to emulate "Dupont, Bell Labs, IBM, AT&T, Xerox, Kodak, GE", is probably that it reads like a list of textbox examples of "companies that failed to execute on their research findings", so clearly there was something wrong with this approach.
The biggest reason why companies don't seek to emulate "Dupont, Bell Labs, IBM, AT&T, Xerox, Kodak, GE", is probably that it reads like a list of textbox examples of "companies that failed to execute on their research findings", so clearly there was something wrong with this approach.