Bosch Info

[Brian]

I've been wondering about how to get the best info possible on Bosch EFI 
designs since it seems to be quite difficult to get alot of detailed info on 
their systems.  So on a whim I decided to try the on-line search of the US 
Patent Office.  I was able to find the patents for most of Bosch's products.  
The on-line information they give is very basic, but I was thinking, anyone can 
get the detailed information of anything Bosch has patented in the US.  This 
would provide all the detailed information about that specific system.  My 
question is, does Bosch protect the "inner workings" of their EFI under some 
"trade secret" law or would all of their info be available?  Has anyone tried 
this?  It's my understanding that anything filed with the Patent Office is ava
ilable to anyone, right?