"Art Unwin KB9MZ" wrote in message
m...
"David Robbins" wrote in message
...
"PagCal" wrote in message
...
Has anyone looked at this patent?

See http://l2.espacenet.com/espacenet/viewer?PN=WO0245210

for details.

It's basically a coil wrapped around a ferrite rod/tube
that sensitive to the magnetic part of the electromagnetic
field.

The author claims it can be built small, handle high
power, and is mostly omni-directional.

They also went to the trouble of patenting it
in Canada, number CA2427575, but I can find no US patent.



doesn't look like anything special, but then
again you don't have to have
anything really special to get a patent...


Absolutely correct since every thing is now known !
We have a lot of very educated experts in the antenna
field that can attest to that. If it is not already
printed in a book or was not presented as something
new found by an expert then it most certainly a case of snake
oil or something that was obvious but useless.
Sounds like you have been succesful in the patent field
and thus can talk from personal experience, care to share
some of these 'useles' patents that you have to illustrate
your point?
Regards
Art


not me, I work mostly in intellectual property... software, for those of you
in Rio Linda. while I believe there are some software patents, I am mostly
an application engineer... that is, I take ideas and research that is
already done and make something useful out of them. at my paying job I
implement research that has been done on lightning hitting high voltage
power lines. I also do various data collection and monitoring systems on
substations and power lines. some of that work may be patentable by the
company even though it is just basically plugging together off the shelf
parts to do a new function. but since I hate having to be held to providing
support and stuff that you have to do for paying customers, anything I have
written for ham use is available free on my web site. (www.k1ttt.net)