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January 2000

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Subject:
From:
Ahne Oosterhof <[log in to unmask]>
Reply To:
Date:
Fri, 28 Jan 2000 07:39:51 -0800
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No, patents are really quit useful. How else could you protect your
investment of time and effort in inventing a new mousetrap.

But a long time ago I was taught a few easy rules to determine whether or
not an invention was worthy of a patent:
        Is there no prior art?
        Is the invention not obvious to someone skilled in the art?
        Is the invention being reduced to reality? (are you "building a working
one"; due diligence)
And if I could answer those questions in the positive it would be time to go
for it.

The most used circumvention is of the third one and these days due diligence
seems to stretch into many years and now the word used when one of those
patents pops up after everyone has become accustomed to using the
unannounced patent  is "submarine patent". (Is machine-vision one of those?)

Ahne.
-----Original Message-----
From:   TechNet [mailto:[log in to unmask]] On Behalf Of Ryan Grant
Sent:   Thursday, January 27, 2000 15:00 PM
To:     [log in to unmask]
Subject:        [TN] patents

I hear you loud and clear Paul.  I'm not a fan of patents in general.
ESPECIALLY when a tangible product is not made before the patent.  For
example, the guy that has a patent on the vision systems used on pick and
place machines.

At the risk of being flamed, I think most patents get in the way of
technological development.  Very few individuals hold patents; the company
they work for hold the patent.  So in a sense, an individuals idea is being
stolen by the company they work for anyway since that individual can't take
their patented idea to the next company they work for.

> -----Original Message-----
> From: Paul Klasek [SMTP:[log in to unmask]]
> Sent: Thursday, January 27, 2000 3:32 PM
> To:   [log in to unmask]
> Subject:      Re: [TN] wave soldering - board rotation
>
> Oh, what slip !, guilty, Graham, my friend (hope so); could you please
> disregard my last note on this motto,
> before we'll get before Judge Judy, please !
> Being old lab rat aka Bev i forgot to patent it 15 years ago !
>
> Reminds me (be vewy, vewy vary) ResMed just acquired a global patent for
> enclosing flexible acoustic noise shield;
> to shield few frequencies out for our blissfully sleeping patients .
> For those less technically minded IT'S A MOTOR IN PLASTIC BAG !
> (nooo kidding ; with 2 full time lawyers); should you consider to run any
> beast in a plastic wrap for ACOUSTIC purpose;
> here yo are, for a wet purpose quite free and legal . Sad hey ?
>
> Don't ask me about heat dissipation ; that is A serious art better not
> patented as not to advertise it .
>
> Paul Klasek
> ResMed
>
> PS
> My apologies Ryan (one never knows this millenium)
>
> -----Original Message-----
> From: Ryan Grant [mailto:[log in to unmask]]
> Sent: Friday, 28 January 2000 7:45
> To: [log in to unmask]
> Subject: Re: [TN] wave soldering - board rotation
>
>
> Hi Graham,
>         I can't speak from experience, but we have some plaques in our
> hallway bragging that our engineers hold the patent on the idea.
> Apparently
> it does work.  Now we use selective solder pallets, and most boards we
> build
> are too big to rotate anyway.  So I can't tell you first hand that it
> works.
>
> Ryan G.
>
> > -----Original Message-----
> > From: Collins, Graham [SMTP:[log in to unmask]]
> > Sent: Thursday, January 27, 2000 10:45 AM
> > To:   [log in to unmask]
> > Subject:      [TN] wave soldering - board rotation
> >
> > Is the TechNet back up?  Yippee!
> >
> > Good day TechNet!
> > Has anyone out in wave soldering land tried using a wave soldering
> fixture
> > that allows you to change the rotation of the board so that the edge of
> > the
> > board isn't parallel to the conveyor?
> >
> > I'm told that rotating the board slightly (say 5 degrees - not 90
> > degrees!)
> > can reduce the
> > occurrence of solder skips on SMT chips (caps and resistors).  Any
> > experience out there to confirm or deny this?
> >
> > Final note: the board design is not suitable for a paste reflow of the
> SMT
> > parts followed by use of a partial wave fixture.  Otherwise that would
> be
> > my
> > #1 choice...
> >
> > regards,
> >
> > Graham Collins
> > Process Engineer,
> > Litton Systems Canada, Atlantic Facility
> > (902) 873-2000 ext 6215
> >
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