> I designed a security system, whoose principle i discovered already more than 20 yers ago, yet i found three US patens identical to that, made around 1999!   They will fall if in cuort.  Poor enginer paying US patent office, then get lies back from them.

Yes, but did you *publish* the specs of the security system or keep it a
secret? Or did you find it in a previous publication?

The US patent system is designed not to protect inventor's rights, but to
put the invention into the public domain.

And the US patent system is based on the British model.
-- 
D. Jay Newman           !         Rock is Dead!
jay@sprucegrove.com     ! Long live paper and scissors!
http://enerd.ws/robots/ !
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