Bob Paddock wrote:
The 06/11/2006 entry
"New Form of Electrical Current has many Applications"

at to me looks like a case of patenting
something that has been around for a few decades.

The old technology is known at the "H-Bridge".

How is this SDC [TM] in anyway different than biphasic currents that have
been in use for many decades?


This proves anyone can get a patent for even the most frivilous idea.

The telephone signal in copper wire is DC with superimposed alternating current.

How long have telephones been around?


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