Re: cats and lasers

To: sob at harvard.edu
Subject: Re: cats and lasers
From: Phil Karn <karn at qualcomm.com>
Date: Tue, 21 Dec 1999 16:16:51 -0800 (PST)
Cc: ietf at ietf.org, perry at PIERMONT.COM, karn at qualcomm.com
In-reply-to: <199912212256.RAA10384@newdev.harvard.edu> (message from Scott Bradner on Tue, 21 Dec 1999 17:56:53 -0500 (EST))

>> directing a beam of invisible light produced by a hand-held laser

>this is exercise for cats that can see "invisible light" 

>I suppose that is a special case that deserves a patent

Actually, no. If you read the patent, you'll see that the light
remains invisible only until it hits an opaque surface. Then it
becomes visible. (See especially claim #3). So much for not being able
to patent a law of physics.

I, for one, have placed a photo of myself deliberately infringing this
patent on my personal web page. How many others want to join me?

http://people.qualcomm.com/karn

--Phil

References:
- Re: cats and lasers
  - From: Scott Bradner

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Re: cats and lasers

Note: Messages sent to this list are the opinions of the senders and do not imply endorsement by the IETF.